CN114274061A - Iron-based slotted metal cutting knife and preparation method thereof - Google Patents
Iron-based slotted metal cutting knife and preparation method thereof Download PDFInfo
- Publication number
- CN114274061A CN114274061A CN202210000034.5A CN202210000034A CN114274061A CN 114274061 A CN114274061 A CN 114274061A CN 202210000034 A CN202210000034 A CN 202210000034A CN 114274061 A CN114274061 A CN 114274061A
- Authority
- CN
- China
- Prior art keywords
- powder
- iron
- cutting knife
- metal cutting
- slotted metal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 53
- 239000002184 metal Substances 0.000 title claims abstract description 53
- 238000005520 cutting process Methods 0.000 title claims abstract description 41
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 30
- 238000002360 preparation method Methods 0.000 title abstract description 9
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 239000010703 silicon Substances 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract 3
- 238000002156 mixing Methods 0.000 claims description 36
- 238000005245 sintering Methods 0.000 claims description 36
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 31
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 29
- 238000003825 pressing Methods 0.000 claims description 29
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 27
- 229910003460 diamond Inorganic materials 0.000 claims description 27
- 239000010432 diamond Substances 0.000 claims description 27
- 238000000227 grinding Methods 0.000 claims description 19
- 238000003754 machining Methods 0.000 claims description 6
- 150000002739 metals Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 claims 1
- 235000012431 wafers Nutrition 0.000 abstract 1
- 239000000463 material Substances 0.000 description 53
- 239000007767 bonding agent Substances 0.000 description 29
- 238000010438 heat treatment Methods 0.000 description 15
- 238000002474 experimental method Methods 0.000 description 9
- 238000001816 cooling Methods 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 238000007873 sieving Methods 0.000 description 8
- 238000007796 conventional method Methods 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000003082 abrasive agent Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 3
- 229910010271 silicon carbide Inorganic materials 0.000 description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910000423 chromium oxide Inorganic materials 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- IYRDVAUFQZOLSB-UHFFFAOYSA-N copper iron Chemical compound [Fe].[Cu] IYRDVAUFQZOLSB-UHFFFAOYSA-N 0.000 description 1
- TVZPLCNGKSPOJA-UHFFFAOYSA-N copper zinc Chemical compound [Cu].[Zn] TVZPLCNGKSPOJA-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910021389 graphene Inorganic materials 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910000597 tin-copper alloy Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Images
Abstract
The invention belongs to a grooving tool, and particularly relates to an iron-based grooving metal cutting knife and a preparation method thereof. The method disclosed by the existing document can cause problems in actual production, and the iron-based slotting cutter can be less used for slotting silicon wafers.
Description
Technical Field
The invention belongs to a grooving tool, and particularly relates to an iron-based grooving metal cutting knife and a preparation method thereof.
Background
The prior art discloses a grinding wheel for chamfering a sapphire substrate and a preparation method thereof, and the grinding wheel comprises a grinding wheel base body and a grinding material layer, wherein the grinding material layer is formed by mixing and sintering diamond and a binding agent, the mass ratio of the diamond to the binding agent is 1:15, and the binding agent comprises the following components in parts by weight: 10-20 parts of copper powder, 10-30 parts of tin-copper alloy powder, 5 parts of tin powder, 10-15 parts of chromium oxide powder, 5-20 parts of iron powder, 30-60 parts of cobalt powder and 1 part of paraffin. The prior art discloses a composite bond grinding wheel for processing a large-size silicon carbide substrate and a preparation method thereof, in particular to a formula of a composite bond superhard material grinding wheel for processing a silicon carbide semiconductor material and a preparation method thereof, wherein the formula mainly comprises 25-45% of diamond abrasive, 25-40% of pre-alloyed powder, 8-20% of polyphenylene sulfide, 10-18% of zinc oxide whisker and 8-22% of SG abrasive; polyphenylene sulfide and zinc-copper alloy powder are used as a composite binder system, and the binder system has strong holding force on the abrasive, resists high grinding resistance of large-size silicon carbide and has strong grinding force. The prior art discloses a universal circular saw blade capable of cutting stainless steel, which is prepared from the following raw materials in parts by weight: comprises 93-98 parts of low-melting-point powder, 1.5-2.3 parts of graphene hard alloy composite material and 1.0-1.5 parts of diamond powder; the low-melting-point powder is prepared by mixing iron powder, copper powder, tin powder, nickel powder, iron-copper alloy powder and carbon powder, and has the advantage of improving the wear resistance of the hard alloy type saw blade. However, the practical application of the blade disclosed in the existing literature has defects, the iron base of the blade sold in the market is less, and the processing quality needs to be improved aiming at the silicon slice grooving.
Disclosure of Invention
The invention discloses an iron-based slotted metal cutting knife with iron powder as a main component and a preparation method thereof, which can realize high alloying at a lower sintering temperature, has good wettability to diamond, has a contact angle of 50 degrees, and has the work of adhesion with the diamond in a liquid phase of 3.4X10-7Joule, the bonding agent has stronger holding power to the diamond abrasive material, and bonding agent hardness also increases, and like this blade has fine shape retentivity.
The invention adopts the following technical scheme:
an iron-based slotted metal cutting knife is prepared by mixing iron powder, copper powder, cobalt powder, tin powder and diamond, and then sequentially performing cold pressing and sintering to obtain the iron-based slotted metal cutting knife; further, the iron-based slotted metal cutting knife is obtained through conventional processing after sintering, and the specific conventional processing is the prior art and comprises inner hole and excircle processing and double end face thinning processing.
In the invention, iron powder, copper powder, cobalt powder and tin powder are used as metal bonding agents, wherein the mass percent of the iron powder is 50-70%, the mass percent of the copper powder is 20-30%, the mass percent of the cobalt powder is 5-10%, and the balance is the tin powder; preferably, the mass percent of the iron powder is 55-65%, the mass percent of the copper powder is 22-28%, the mass percent of the cobalt powder is 6-9%, and the balance is tin powder; further preferably, the mass percent of the iron powder is 58-62%, the mass percent of the copper powder is 23-27%, the mass percent of the cobalt powder is 6-8%, and the balance is tin powder.
In the invention, the cold pressing is 3-4.5 tons/cm2Maintaining the pressure for 3-5 seconds to prepare a cold-pressed green body; during sintering, the heating rate is 40-55 ℃/min, and the temperature is raised to the final temperatureAnd the junction temperature is 750-.
The invention can realize high alloying with lower sintering temperature by adjusting the formula through the existing raw materials, has good wettability to diamond, has a contact angle of 50 degrees, and has the adhesion work with the diamond in a liquid phase of 3.4X10-7Joule, the bonding agent has stronger holding power to the diamond abrasive, refines the grain structure of the alloy system, improves the sharpness of the grinding wheel, enhances the shape retentivity of the blade and enables the blade to bear higher stress.
Drawings
FIG. 1 is a 100-fold magnification of a blade processing result of an embodiment;
FIG. 2 is the result of the second blade machining of the example, enlarged by 100 times;
FIG. 3 shows the results of the three-blade machining of the example, at 100 times magnification;
FIG. 4 shows the result of the conventional insert machining, magnified 100 times;
FIG. 5 shows the results of the machining of the second insert of the comparative example, magnified 100 times;
fig. 6 is the results of the comparative example three-bladed process, at 100 x magnification.
Detailed Description
The raw materials used in the invention are the existing products, and the particle size of the iron powder is 6-10 μm; the particle size of the copper powder is 10-15 mu m; the grain diameter of the tin powder is 10-15 mu m; the particle size of the cobalt powder is 1-5 mu m; the diamond is titanium-plated diamond, and the granularity is 900# -1200 #; the specific preparation operation and the processing method are the prior art; the volume of the abrasive material accounts for 20-27.5% of the volume of the metal bond and the abrasive material, and the percentage is preferably 25%. In the processing experiment, the processing object is a silicon wafer, the processing parameters, the rotating speed RPM 30000 and the feeding speed are as follows: 5 mm/s.
The embodiment discloses an iron-based slotted metal cutting knife, which comprises the following metal bonding agent components in percentage by weight:
iron powder 60%
Copper powder 25%
Cobalt powder 7%
8 percent of tin powder
(1) Mixing materials: according to the formula requirement, firstly adding iron powder and copper powder into a three-dimensional mixer, mixing for 2 hours, then adding cobalt powder and tin powder, mixing for 0.5 hour, and finally adding diamond, mixing for 1 hour to obtain a uniformly mixed material; 1.5Kg of metal-based bonding agent, wherein the volume ratio of the metal bonding agent to the grinding material is 3: 1;
(2) and (3) pressing and forming: sieving the material in the step (1) with a 120-mesh sieve for 3 times, taking the undersize material, feeding and pressing the undersize material at room temperature, wherein 4 tons/cm2Maintaining the pressure for 3 seconds to prepare a cold-pressed green body;
(3) sintering and forming: placing the blank subjected to cold pressing in the step (2) and the die into a sintering furnace, heating the blank at a heating rate of 50 ℃/min to a final sintering temperature of 800 ℃, keeping the temperature for 30 minutes, cooling the blank along with the furnace to the room temperature, taking out the blank, and removing burrs for later use;
(4) processing an inner hole and an outer circle: adding a sintered blank into a special fixture, cutting by a slow-moving wire to the dimensional precision required by the drawing, and removing electric processing burrs by using oilstone;
(5) and (3) thinning and processing of double end faces: and (3) placing the blank after the inner and outer circles are processed in a double-end-face thinning machine, fixing a tool clamp, processing to the dimensional accuracy required by the drawing to obtain a scribing cutter of 56 mm (O.D) X0.635 mm (T) X40 mm (I.D), and finding that the blade has excellent performance and is amplified by 100 times without edge breakage of a silicon wafer according to a processing experiment, which is shown in figure 1.
The steps (4) and (5) are conventional methods.
The second embodiment of the iron-based slotted metal cutting knife comprises the following metal bonding agent components in percentage by weight:
iron powder 62%
23 percent of copper powder
Cobalt powder 7%
8 percent of tin powder
(1) Mixing materials: according to the formula requirement, firstly adding iron powder and copper powder into a three-dimensional mixer, mixing for 2 hours, then adding cobalt powder and tin powder, mixing for 0.5 hour, and finally adding diamond, mixing for 1 hour to obtain a uniformly mixed material; 1.5Kg of metal-based bonding agent, wherein the volume ratio of the metal bonding agent to the grinding material is 3: 1;
(2) and (3) pressing and forming: sieving the material in the step (1) with a 120-mesh sieve for 3 times, taking the undersize material, feeding and pressing the undersize material at room temperature, wherein the weight of the undersize material is 4.5 tons/cm2Maintaining the pressure for 3 seconds to prepare a cold-pressed green body;
(3) sintering and forming: placing the blank subjected to cold pressing in the step (2) and the die into a sintering furnace, heating the blank at a heating rate of 50 ℃/min to a final sintering temperature of 800 ℃, keeping the temperature for 30 minutes, cooling the blank along with the furnace to the room temperature, taking out the blank, and removing burrs for later use;
(4) processing an inner hole and an outer circle: adding a sintered blank into a special fixture, cutting by a slow-moving wire to the dimensional precision required by the drawing, and removing electric processing burrs by using oilstone;
(5) and (3) thinning and processing of double end faces: and (3) placing the blank after the inner and outer circles are processed in a double-end-face thinning machine, fixing a tool clamp, processing to the dimensional accuracy required by the drawing to obtain a scribing cutter of 56 mm (O.D) X0.635 mm (T) X40 mm (I.D), and finding that the blade has excellent performance and is amplified by 100 times without edge breakage of a silicon wafer according to a processing experiment, which is shown in figure 2.
The steps (4) and (5) are conventional methods.
The third embodiment of the iron-based slotted metal cutting knife comprises the following metal bonding agent components in percentage by weight:
iron powder 58%
Copper powder 27%
Cobalt powder 7%
8 percent of tin powder
(1) Mixing materials: according to the formula requirement, firstly adding iron powder and copper powder into a three-dimensional mixer, mixing for 2 hours, then adding cobalt powder and tin powder, mixing for 0.5 hour, and finally adding diamond, mixing for 1 hour to obtain a uniformly mixed material; 1.5Kg of metal-based bonding agent, wherein the volume ratio of the metal bonding agent to the grinding material is 3: 1;
(2) and (3) pressing and forming: sieving the material in the step (1) with a 120-mesh sieve for 3 times, taking the undersize material, feeding and pressing the undersize material at room temperature, wherein 4 tons/cm2Maintaining the pressure for 3 seconds to prepare a cold-pressed green body;
(3) sintering and forming: placing the blank subjected to cold pressing in the step (2) and the die into a sintering furnace, heating the blank at a heating rate of 50 ℃/min to a final sintering temperature of 800 ℃, keeping the temperature for 30 minutes, cooling the blank along with the furnace to the room temperature, taking out the blank, and removing burrs for later use;
(4) processing an inner hole and an outer circle: adding a sintered blank into a special fixture, cutting by a slow-moving wire to the dimensional precision required by the drawing, and removing electric processing burrs by using oilstone;
(5) and (3) thinning and processing of double end faces: and (3) placing the blank after the inner and outer circles are processed in a double-end-face thinning machine, fixing a tool clamp, processing to the dimensional accuracy required by the drawing to obtain a scribing cutter of 56 mm (O.D) X0.635 mm (T) X40 mm (I.D), and finding that the blade has excellent performance and is amplified by 100 times without edge breakage of a silicon wafer through a processing experiment, which is shown in figure 3.
The steps (4) and (5) are conventional methods.
The experimental result of the cutting knife for silicon chip slotting on the prior market is shown in figure 4, the edge breakage is small, the cutting knife is slightly worse than the embodiment, the processing life of the first embodiment is 1.2 times of that of the prior blade, and the cutting knife has beneficial progress.
The copper-based slotted metal cutting knife comprises the following metal bonding agent components in percentage by weight:
copper powder 60%
Iron powder 25%
Cobalt powder 7%
8 percent of tin powder
(1) Mixing materials: according to the formula requirement, firstly adding iron powder and copper powder into a three-dimensional mixer, mixing for 2 hours, then adding cobalt powder and tin powder, mixing for 0.5 hour, and finally adding diamond, mixing for 1 hour to obtain a uniformly mixed material; 1.5Kg of metal-based bonding agent, wherein the volume ratio of the metal bonding agent to the grinding material is 3: 1;
(2) and (3) pressing and forming: sieving the material in the step (1) with a 120-mesh sieve for 3 times, taking the undersize material, feeding and pressing the undersize material at room temperature, wherein 4 tons/cm2Maintaining the pressure for 3 seconds to prepare a cold-pressed green body;
(3) sintering and forming: placing the blank subjected to cold pressing in the step (2) and the die into a sintering furnace, heating the blank at a heating rate of 50 ℃/min to a final sintering temperature of 800 ℃, keeping the temperature for 30 minutes, cooling the blank along with the furnace to the room temperature, taking out the blank, and removing burrs for later use;
(4) processing an inner hole and an outer circle: adding a sintered blank into a special fixture, cutting by a slow-moving wire to the dimensional precision required by the drawing, and removing electric processing burrs by using oilstone;
(5) and (3) thinning and processing of double end faces: and (3) placing the blank after the inner and outer circles are processed in a double-end-face thinning machine, fixing a tool clamp, and processing to the dimensional accuracy required by the drawing to obtain a scribing cutter of 56 mm (O.D) X0.635 mm (T) X40 mm (I.D), wherein the service life of the blade is obviously reduced by about 65% of that of the blade in the first embodiment through processing experiments.
The steps (4) and (5) are conventional methods.
Comparative example two an iron-based slotted metal cutting knife, its metallic bond component and content are as follows:
iron powder 60%
Copper powder 25%
7 percent of nickel powder
8 percent of tin powder
(1) Mixing materials: according to the formula requirement, firstly adding iron powder and copper powder into a three-dimensional mixer, mixing for 2 hours, then adding nickel powder and tin powder, mixing for 0.5 hour, and finally adding diamond, mixing for 1 hour to obtain a uniformly mixed material; 1.5Kg of metal-based bonding agent, wherein the volume ratio of the metal bonding agent to the grinding material is 3: 1;
(2) and (3) pressing and forming: sieving the material in the step (1) with a 120-mesh sieve for 3 times, taking the undersize material, feeding and pressing the undersize material at room temperature, wherein 4 tons/cm2Maintaining the pressure for 3 seconds to prepare a cold-pressed green body;
(3) sintering and forming: placing the blank subjected to cold pressing in the step (2) and the die into a sintering furnace, heating the blank at a heating rate of 50 ℃/min to a final sintering temperature of 800 ℃, keeping the temperature for 30 minutes, cooling the blank along with the furnace to the room temperature, taking out the blank, and removing burrs for later use;
(4) processing an inner hole and an outer circle: adding a sintered blank into a special fixture, cutting by a slow-moving wire to the dimensional precision required by the drawing, and removing electric processing burrs by using oilstone;
(5) and (3) thinning and processing of double end faces: and (3) placing the blank after the inner and outer circles are processed in a double-end-face thinning machine, fixing a tool clamp, processing to the dimensional accuracy required by the drawing to obtain a scribing cutter of 56 mm (O.D) X0.635 mm (T) X40 mm (I.D), and finding that the edge breakage of the cutter is large through a processing experiment, wherein the figure 5 shows that the cutter is used for machining the inner and outer circles.
The steps (4) and (5) are conventional methods.
The iron-based slotted metal cutting knife comprises the following metal bonding agent components in percentage by weight:
iron powder 60%
Copper powder 25%
Cobalt powder 7%
8 percent of graphite powder
(1) Mixing materials: according to the formula requirement, firstly adding iron powder and copper powder into a three-dimensional mixer, mixing for 2 hours, then adding cobalt powder and graphite powder, mixing for 0.5 hour, and finally adding diamond, and mixing for 1 hour to obtain a uniformly mixed material; 1.5Kg of metal-based bonding agent, wherein the volume ratio of the metal bonding agent to the grinding material is 3: 1;
(2) and (3) pressing and forming: sieving the material in the step (1) with a 120-mesh sieve for 3 times, taking the undersize material, feeding and pressing the undersize material at room temperature, wherein 4 tons/cm2Maintaining the pressure for 3 seconds to prepare a cold-pressed green body;
(3) sintering and forming: putting the blank subjected to cold pressing in the step (2) and the die into a sintering furnace, heating the blank at a rate of 50 ℃/min to the final sintering temperature of 900 ℃, keeping the temperature for 45 minutes, cooling the blank along with the furnace to the room temperature, taking out the blank, and removing burrs for later use;
(4) processing an inner hole and an outer circle: adding a sintered blank into a special fixture, cutting by a slow-moving wire to the dimensional precision required by the drawing, and removing electric processing burrs by using oilstone;
(5) and (3) thinning and processing of double end faces: and (3) placing the blank after the inner and outer circles are processed in a double-end-face thinning machine, fixing a tool clamp, processing to the dimensional accuracy required by the drawing to obtain a scribing cutter of 56 mm (O.D), X0.635 mm (T) and X40 mm (I.D), and finding that the edge breakage of the blade is serious through a processing experiment, which is shown in fig. 6.
The steps (4) and (5) are conventional methods.
The iron-based slotted metal cutting knife comprises the following metal bonding agent components in percentage by weight:
iron powder 60%
Copper powder 25%
Cobalt powder 7%
8 percent of tin powder
(1) Mixing materials: according to the formula requirement, firstly adding iron powder and copper powder into a three-dimensional mixer, mixing for 2 hours, then adding cobalt powder and tin powder, mixing for 0.5 hour, and finally adding diamond, mixing for 1 hour to obtain a uniformly mixed material; 1.5Kg of metal-based bonding agent, wherein the volume ratio of the metal bonding agent to the grinding material is 3: 1;
(2) and (3) pressing and forming: sieving the material in the step (1) with a 120-mesh sieve for 3 times, taking the undersize material, feeding and pressing the undersize material at room temperature, wherein 4 tons/cm2Maintaining the pressure for 3 seconds to prepare a cold-pressed green body;
(3) sintering and forming: placing the blank subjected to cold pressing in the step (2) and the die into a sintering furnace, heating the blank at the rate of 30 ℃/min to the final sintering temperature of 800 ℃, keeping the temperature for 30 minutes, cooling the blank to the room temperature along with the furnace, taking out the blank, and removing burrs for later use;
(4) processing an inner hole and an outer circle: adding a sintered blank into a special fixture, cutting by a slow-moving wire to the dimensional precision required by the drawing, and removing electric processing burrs by using oilstone;
(5) and (3) thinning and processing of double end faces: and (3) placing the blank after the inner and outer circles are processed in a double-end-face thinning machine, fixing a tool clamp, processing to the dimensional accuracy required by the drawing, and obtaining a scribing cutter of 56 mm (O.D) X0.635 mm (T) X40 mm (I.D), wherein the tin overflow occurs, and experiments are not carried out.
The steps (4) and (5) are conventional methods.
The iron-based slotted metal cutting knife comprises the following metal bonding agents in parts by weight:
iron powder 45%
35 percent of copper powder
10 percent of cobalt powder
10 percent of tin powder
(1) Mixing materials: according to the formula requirement, firstly adding iron powder and copper powder into a three-dimensional mixer, mixing for 2 hours, then adding cobalt powder and tin powder, mixing for 0.5 hour, and finally adding diamond, mixing for 1 hour to obtain a uniformly mixed material; 1.5Kg of metal-based bonding agent, wherein the volume ratio of the metal bonding agent to the grinding material is 3: 1;
(2) and (3) pressing and forming: sieving the material in the step (1) with a 120-mesh sieve for 3 times, taking the undersize material, feeding and pressing the undersize material at room temperature, wherein 4 tons/cm2Maintaining the pressure for 3 seconds to prepare a cold-pressed green body;
(3) sintering and forming: putting the blank subjected to cold pressing in the step (2) and the die into a sintering furnace, heating at a rate of 50 ℃/min, heating to a final sintering temperature of 800 ℃ at room temperature, keeping the temperature for 30 minutes, cooling to room temperature along with the furnace, taking out, and removing burrs for later use;
(4) processing an inner hole and an outer circle: adding a sintered blank into a special fixture, cutting by a slow-moving wire to the dimensional precision required by the drawing, and removing electric processing burrs by using oilstone;
(5) and (3) thinning and processing of double end faces: and (3) placing the blank after the inner and outer circles are processed in a double-end-face thinning machine, fixing a tool clamp, processing to the dimensional accuracy required by the drawing to obtain a scribing cutter of 56 mm (O.D) X0.635 mm (T) X40 mm (I.D), and finding that the blade generates silicon wafer edge breakage through a processing experiment.
According to the scribing cutter prepared by the method, the diamond is plated with titanium, the granularity is 900-1200 #, the formula adopts iron to replace cobalt, and the proportion of tin powder and copper powder is combined, so that the high alloying at the lower sintering temperature can be realized, the scribing cutter has good wettability to the diamond, the contact angle is 50 degrees, and the adhesion work with the diamond in the liquid phase reaches 3.4X10 degrees-7Joule, the bonding agent has stronger holding power to the diamond abrasive material, the bonding agent hardness is also increased, so the blade has very good shape retentivity, the silicon chip is almost not broken during slotting, and the silicon chip is enlarged by 100 times and is almost invisible.
Claims (10)
1. The iron-based slotted metal cutting knife is characterized in that the iron-based slotted metal cutting knife is prepared by mixing iron powder, copper powder, cobalt powder, tin powder and diamond, and then sequentially performing cold pressing and sintering.
2. An iron-based slotted metal cutting knife according to claim 1, characterized in that the iron-based slotted metal cutting knife is obtained by conventional machining after sintering.
3. The iron-based slotted metal cutting knife according to claim 1, wherein the iron powder is 50-70% by mass, the copper powder is 20-30% by mass, the cobalt powder is 5-10% by mass, and the balance is tin powder.
4. An iron-based slotted metal cutting knife according to claim 3, characterized in that the mass percent of iron powder is 55-65%, the mass percent of copper powder is 22-28%, the mass percent of cobalt powder is 6-9%, and the rest is tin powder.
5. The iron-based slotted metal cutting knife according to claim 4, wherein the iron powder is 58-62% by mass, the copper powder is 23-27% by mass, the cobalt powder is 6-8% by mass, and the balance is tin powder.
6. The method for preparing the iron-based slotted metal cutting knife according to claim 1, wherein iron powder, copper powder, cobalt powder, tin powder and diamond are mixed, and then the mixture is subjected to cold pressing and sintering in sequence to obtain the iron-based slotted metal cutting knife.
7. A method for manufacturing an iron-based cutting blade for cutting open groove metals as claimed in claim 6, characterized in that the cold pressing is 3-4.5 tons/cm2And maintaining the pressure for 3-5 seconds to obtain the cold-pressed green body.
8. The method as claimed in claim 6, wherein the temperature is raised at a rate of 40-55 ℃/min during sintering, the temperature is raised to a final sintering temperature of 750-.
9. Use of an iron-based slotted metal cutting insert according to claim 1 for the manufacture of a grinding wheel.
10. Use of the iron-based slotted metal cutting blade of claim 1 for silicon wafer slotting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210000034.5A CN114274061A (en) | 2022-01-01 | 2022-01-01 | Iron-based slotted metal cutting knife and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210000034.5A CN114274061A (en) | 2022-01-01 | 2022-01-01 | Iron-based slotted metal cutting knife and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114274061A true CN114274061A (en) | 2022-04-05 |
Family
ID=80880152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210000034.5A Pending CN114274061A (en) | 2022-01-01 | 2022-01-01 | Iron-based slotted metal cutting knife and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114274061A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115464139A (en) * | 2022-08-15 | 2022-12-13 | 浙江省永康市金都工贸有限公司 | Dry-wet dual-purpose diamond drill bit and manufacturing method thereof |
| CN117444212A (en) * | 2023-10-27 | 2024-01-26 | 江苏华昌工具制造有限公司 | Milling cutter wheel special for stone and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2892957A1 (en) * | 2005-11-09 | 2007-05-11 | Eurotungstene Poudres Soc Par | POLYMETAL POWDER AND SINKED PART MADE FROM THIS POWDER |
| CN101716803A (en) * | 2010-01-25 | 2010-06-02 | 河南工业大学 | Copper base diamond saw blade |
| CN104162675A (en) * | 2014-07-22 | 2014-11-26 | 铜陵长江金刚石工具有限责任公司 | Method for manufacturing iron-based diamond cutter teeth |
| CN106985085A (en) * | 2017-04-22 | 2017-07-28 | 河南工业大学 | A kind of metal anchoring agent diamond wheel |
| CN109128145A (en) * | 2018-11-02 | 2019-01-04 | 石家庄海川工具有限公司 | A kind of preparation method of diamond engineering thin-walled drill cutter head powdered metallurgical material and cutter head |
| CN109794860A (en) * | 2019-03-24 | 2019-05-24 | 北京工业大学 | A kind of milling Compound Machining iron-based diamond cutter and preparation method thereof |
-
2022
- 2022-01-01 CN CN202210000034.5A patent/CN114274061A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2892957A1 (en) * | 2005-11-09 | 2007-05-11 | Eurotungstene Poudres Soc Par | POLYMETAL POWDER AND SINKED PART MADE FROM THIS POWDER |
| CN101716803A (en) * | 2010-01-25 | 2010-06-02 | 河南工业大学 | Copper base diamond saw blade |
| CN104162675A (en) * | 2014-07-22 | 2014-11-26 | 铜陵长江金刚石工具有限责任公司 | Method for manufacturing iron-based diamond cutter teeth |
| CN106985085A (en) * | 2017-04-22 | 2017-07-28 | 河南工业大学 | A kind of metal anchoring agent diamond wheel |
| CN109128145A (en) * | 2018-11-02 | 2019-01-04 | 石家庄海川工具有限公司 | A kind of preparation method of diamond engineering thin-walled drill cutter head powdered metallurgical material and cutter head |
| CN109794860A (en) * | 2019-03-24 | 2019-05-24 | 北京工业大学 | A kind of milling Compound Machining iron-based diamond cutter and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 童幸生: "《材料成形工艺基础》", 华中科技大学出版社, pages: 196 - 198 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115464139A (en) * | 2022-08-15 | 2022-12-13 | 浙江省永康市金都工贸有限公司 | Dry-wet dual-purpose diamond drill bit and manufacturing method thereof |
| CN117444212A (en) * | 2023-10-27 | 2024-01-26 | 江苏华昌工具制造有限公司 | Milling cutter wheel special for stone and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109822102B (en) | Preparation method of fine-grained diamond saw blade | |
| CN114274061A (en) | Iron-based slotted metal cutting knife and preparation method thereof | |
| CN108326280B (en) | Diamond cutting knife for cutting ultrathin sapphire glass and preparation method thereof | |
| CN108656363B (en) | Composite multilayer diamond tool bit and preparation method thereof | |
| CN106956224B (en) | A kind of skive stick and preparation method thereof | |
| CN108097972B (en) | Preparation method of metal bond tool bit and diamond circular saw blade with metal bond tool bit | |
| CN109719294B (en) | 40-micron ultrathin metal bond diamond scribing knife for Faraday rotator and application thereof | |
| CN112410599B (en) | Preparation method of high-entropy alloy matrix diamond tool bit | |
| CN111251200A (en) | Metal composite bonding agent diamond grinding wheel based on molybdenum disulfide and open pores and preparation method thereof | |
| CN109093122A (en) | A kind of cutting type diamond cutter and preparation method thereof | |
| US2244052A (en) | Method of forming hard cemented carbide products | |
| CN105598859A (en) | Large-pore CBN grinding wheel for machining sliding vanes of compressor | |
| CN109986082B (en) | Preparation method of diamond tool based on iron agent matrix and binding agent | |
| CN109277957B (en) | Cutter head with uniformly distributed diamonds and preparation process thereof | |
| CN114378730A (en) | Grinding wheel for roughing and thinning mobile phone back plate glass and preparation method thereof | |
| CN108582503B (en) | Diamond cutting tool bit and manufacturing method thereof | |
| JP5982725B2 (en) | Grinding tool for machining brittle materials and method of making a grinding tool | |
| CN112756613A (en) | Grinding wheel for high-strength and high-hardness ceramic processing and preparation method thereof | |
| CN108818331B (en) | Bronze-based CBN grinding wheel and preparation method thereof | |
| CN209408964U (en) | Composite diamond cutter head and diamond saw blade | |
| WO2020113798A1 (en) | Long-service-life ultrathin sintering brazing hole drill for drilling of military armored kevlar layer and production process therefor | |
| CN111250807A (en) | Diamond tool and preparation method thereof | |
| JPS646906B2 (en) | ||
| CN113681004A (en) | Preparation method of high-cost-performance fine cut sheet and fine cut sheet | |
| CN110394738B (en) | Special grinding tool suitable for grinding ceramic material revolving body part and manufacturing process thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220405 |