CN107379277B - Diamond saw blade - Google Patents
Diamond saw blade Download PDFInfo
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- CN107379277B CN107379277B CN201710711152.6A CN201710711152A CN107379277B CN 107379277 B CN107379277 B CN 107379277B CN 201710711152 A CN201710711152 A CN 201710711152A CN 107379277 B CN107379277 B CN 107379277B
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- diamond
- saw blade
- hard
- cutting
- side circumferential
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
- B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
- B28D1/048—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with a plurality of saw blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/0058—Accessories specially adapted for use with machines for fine working of gems, jewels, crystals, e.g. of semiconductor material
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The invention relates to a diamond saw blade, and belongs to the technical field of diamond machining tools. The diamond saw blade comprises a circular substrate, wherein the circular substrate comprises a side circumferential surface positioned at the edge of the substrate, and a plurality of diamond tool tips are distributed on the side circumferential surface, and each of the plurality of diamond tool tips consists of a hard grinding part and a diamond cutting part. The diamond saw blade of the invention not only can reduce the consumption of diamond abrasive and save the material cost, but also has better high-speed cutting performance and more stable cutting performance for marble, granite, concrete, ceramics and other materials.
Description
Technical Field
The invention relates to the technical field of diamond machining tools, in particular to a diamond saw blade.
Background
Diamond is the hardest material found in the world and industrially available in large quantities, and diamond cutting tools have become an indispensable material for processing various hard materials. The diamond cutting tool is formed by mixing metal powder and artificial diamond particles, pressing and sintering. And with the continuous development of society, the foundation construction scale is continuously enlarged, and a wider application market is provided for the diamond tool. In the diamond cutting tools, the diamond saw blade has the widest application range, and the diamond saw blade is widely applied to cutting and processing of materials such as marble, granite, concrete, asphalt, ceramics, glass, jewelry and jade, semiconductors and the like. With the continuous development of technology, requirements on cutting efficiency and cutting rate are also increasing. In order to improve the cutting performance of diamond saw blades, designers often consider both the structural design of the saw blade or the braze employed. For the brazing filler metal, one aspect of the brazing filler metal is used for connecting the wear-resistant material into a grid framework to hold the diamond; the second aspect functions to abrade the diamond as it wears, causing the diamond to properly strike the edge. Besides certain hardness, toughness and wear resistance, the brazing filler metal can greatly improve the edge height of the diamond if the brazing filler metal has certain wettability to the diamond, so that the grinding performance is improved. Prealloyed powder commonly used in the prior art can improve the holding force and wettability of diamond and a metal bonding agent, but has poor self-sharpening property under a high-speed cutting condition, so that the cutting efficiency is poor.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention aims to provide a diamond saw blade.
A diamond saw blade comprising a disc-shaped substrate, the disc-shaped substrate comprising a side circumferential surface at an edge of the substrate, and a plurality of diamond tips distributed on the side circumferential surface; the method is characterized in that: each of the plurality of diamond tips is comprised of a hard abrasive segment and a diamond cutting segment.
Wherein the height and thickness of the hard grinding part and the diamond cutting part are the same, and the length ratio along the outer circumference direction of the disc-shaped substrate is 1:8-1:20.
Wherein, the hard grinding part and the diamond cutting part are integrally formed through a sintering process.
And chip grooves extending inwards along the circle center direction of the disc-shaped matrix from the side circumferential surfaces are arranged between the adjacent diamond tool tips.
Wherein, the chip groove comprises a trapezoid notch and a U-shaped groove.
Wherein the plurality of diamond tips are evenly distributed on the side circumferential surface.
Wherein the diamond tips are disposed on the side circumferential surfaces by a brazing process.
Wherein the hard grinding part is formed by cold pressing and sintering hard brazing filler metal which is not prealloyed, and does not contain diamond abrasive particles.
The diamond cutting part is formed by mixing prealloyed brazing filler metal and diamond abrasive particles, and then cold pressing and sintering.
Wherein, pore-forming agent is added in the hard solder which is not prealloyed.
The diamond saw blade has the following beneficial effects:
the diamond saw blade of the invention not only can reduce the consumption of diamond abrasive and save the material cost, but also has better high-speed cutting performance for marble, granite, concrete, ceramics and other materials, and has more stable cutting performance and longer service life.
Drawings
Fig. 1 is a schematic view of a diamond saw blade according to the present invention.
Fig. 2 is a schematic view of a diamond tip in the diamond saw blade according to the present invention.
Detailed Description
The diamond saw blade according to the present invention will be further described with reference to specific examples to help those skilled in the art to understand the inventive concept, technical solution of the present invention more fully, accurately and deeply.
As shown in fig. 1 to 2, the diamond saw blade of the present invention includes a disc-shaped base body 10, the disc-shaped base body 10 including side circumferential surfaces at edges of the base body, and a plurality of diamond tips 20 connected by a brazing process are uniformly distributed on the side circumferential surfaces. Between adjacent diamond tips 20 are provided chip grooves 30 extending inward from the side circumferential surfaces in the direction of the center of the disc-shaped base, and the chip grooves are composed of a trapezoidal notch and a U-shaped groove. Each of the plurality of diamond tips 20 is composed of a hard grinding portion 21 and a diamond cutting portion 22, which are identical in height and thickness to each other, and have a length ratio of 1:8 to 1:20 along the outer circumferential direction of the disc-shaped substrate, and are integrally formed by a sintering process. When the diamond saw blade is used for cutting hard materials such as marble, granite, concrete, ceramic and the like, the hard grinding part can generate hard grinding particles along the cutting direction, so that the self-sharpening of the diamond abrasive particles exposed from the diamond cutting part is facilitated, and the cutting performance of the diamond tool bit under the high-speed cutting condition can be improved.
The manufacturing process of the diamond saw blade comprises the following steps:
1. matrix processing
According to the drawing requirements, a disc-shaped 65Mn steel substrate is cut by laser, and then polished to be flat.
2. Diamond tool bit preparation
Weighing hard solder (comprising liquid paraffin pore-forming agent) which is not prealloyed according to the proportion, and uniformly mixing the hard solder with prealloyed solder and diamond abrasive particles (the compressive strength is 25Kg, and the granularity is 35/40); then respectively placing them into diamond tool bit mould according to the sequence (length ratio is 1:8-1:20) and cold-pressing them into the invented productThe diamond blank is then hot pressed and sintered to form at 810-850 deg.c and 320-350 kg/cm pressure 2 The incubation time was 180 seconds.
3. Laser welding
Placing the diamond tool bit and the matrix at the corresponding position of the matrix according to the drawing requirement, adjusting the light spot of the laser welding machine to the proper position of the tool bit and the matrix, starting the laser welding machine to weld, and welding the tool bit and the matrix together at the moment of laser penetration, and then using 600N/mm 2 Intensity criteria weld intensity measurements were made for each diamond tip.
4. Polishing, painting and inspection
Then polishing the working surface of the diamond tool bit by a grinding wheel, exposing the diamond, polishing the surface of the welded diamond saw blade by a polishing machine to be bright, then carrying out surface paint spraying and drying to prevent the surface from rusting, and finally carrying out the polishing at 600N/mm 2 And (5) detecting the welding strength of each diamond tool bit according to the strength standard, and printing, packaging and warehousing after the diamond tool bit is qualified.
Example 1
In this example, a hard solder was used as a raw material for producing a hard grinding portion, the hard solder being mechanically mixed with 31 wt% of copper powder, 5.2 wt% of nickel powder, 4.2 wt% of cobalt powder, 3.6 wt% of tin powder, 1.0wt% of chromium powder, 3.0 wt% of tungsten carbide powder, 1.0wt% of liquid paraffin, and the balance of iron powder. An atomized powder having a diameter of 10 μm or less, which was prepared from 31 wt% of copper powder, 5.2 wt% of nickel powder, 4.2 wt% of cobalt powder, 3.6 wt% of tin powder, 1.0wt% of chromium powder, 1.5 wt% of cerium-copper alloy powder, and 53.5 wt% of iron powder, was used as a pre-alloy powder, and diamond particles having a particle size of 35/40 (concentration of 100%) were added as a raw material for preparing a diamond cutting portion. Respectively placing them into diamond tool bit mould according to the sequence (the length ratio of hard grinding portion and diamond cutting portion is 1:10) for cold pressing to obtain diamond blank body, then using hot-pressing sintering to make them undergo the process of hot-pressing sintering treatment, its hot-pressing sintering temperature is 850 deg.C and pressure is 320kg/cm 2 The incubation time was 180 seconds. Then the diamond tool bit is polished by adopting a grinding wheel abrasive beltPlacing the diamond tool bit and the matrix at the corresponding position of the matrix according to the drawing requirement, adjusting the light spot of the laser welding machine to the proper position of the tool bit and the matrix, starting the laser welding machine to weld the tool bit and the matrix together at the moment of laser penetration, and then using 600N/mm 2 The welding strength of each diamond tool bit is detected according to the strength standard, the surface of a substrate is polished to be bright by a polishing machine after the diamond saw blade is welded, then the working surface of the diamond tool bit is polished by a grinding wheel, the diamond is exposed, then the surface is sprayed with paint and dried to prevent the surface from rusting, and finally the diamond saw blade is polished at 600N/mm 2 And (5) detecting the welding strength of each diamond tool bit according to the strength standard, and printing, packaging and warehousing after the diamond tool bit is qualified.
Example 2
In this example, a brazing filler metal was used as a raw material for producing a hard polished section, the brazing filler metal being composed of 15 wt% of copper powder, 11.2 wt% of nickel powder, 1.2 wt% of cobalt powder, 3.0 wt% of tungsten carbide powder, 1.0wt% of liquid paraffin, and the balance of iron powder, which were mechanically mixed. An electrolytic powder having a diameter of 5 μm or less, which was prepared from 15 wt% of copper powder, 11.2 wt% of nickel powder, 1.2 wt% of cobalt powder and the balance of iron powder, was used as a pre-alloy powder, and diamond particles having a particle size of 35/40 (concentration of 100%) were added as a raw material for preparing diamond cutting portions. Respectively placing them into diamond tool bit mould according to the sequence (the length ratio of hard grinding portion and diamond cutting portion is 1:15) for cold pressing to obtain diamond blank body, then using hot-pressing sintering to make them undergo the process of hot-pressing sintering treatment, its hot-pressing sintering temperature is 850 deg.C and pressure is 320kg/cm 2 The incubation time was 180 seconds. Then the diamond tool bit is polished by a grinding wheel abrasive belt, the diamond tool bit and the matrix are put together on the corresponding matrix position according to the drawing requirement, the light spot of the laser welding machine is adjusted to the proper position of the tool bit and the matrix, the laser welding machine is started to weld, the tool bit and the matrix are welded together at the moment of laser penetration, and then the laser welding machine is used for welding at 600N/mm 2 The intensity standard detects the welding intensity of each diamond tool bit, the welded diamond saw blade is polished with a polishing machine to polish the surface of the substrate, then the working surface of the diamond tool bit is polished with a grinding wheel, and the diamond is exposedThen the product is sprayed with paint and dried to prevent rust on the surface, and finally 600N/mm 2 And (5) detecting the welding strength of each diamond tool bit according to the strength standard, and printing, packaging and warehousing after the diamond tool bit is qualified.
Comparative example 1
The difference from example 1 was that the diamond tip consisted of a diamond cutting portion, and as a pre-alloy powder, an aerosolised powder having a diameter of 10 μm or less was prepared from 31 wt% of copper powder, 5.2 wt% of nickel powder, 4.2 wt% of cobalt powder, 3.6 wt% of tin powder, 1.0wt% of chromium powder, 1.5 wt% of cerium-copper alloy powder, and 53.5 wt% of iron powder as a raw material, and diamond particles having a particle size of 35/40 (concentration of 100%) were added as a raw material for preparing the diamond cutting portion. Putting the raw materials into a diamond tool bit die, cold pressing the raw materials into a diamond blank body, and then performing hot pressing sintering molding, wherein the hot pressing sintering temperature is 850 ℃ and the pressure is 320kg/cm 2 The incubation time was 180 seconds. Then the diamond tool bit is polished by a grinding wheel abrasive belt, the diamond tool bit and the matrix are put together on the corresponding matrix position according to the drawing requirement, the light spot of the laser welding machine is adjusted to the proper position of the tool bit and the matrix, the laser welding machine is started to weld, the tool bit and the matrix are welded together at the moment of laser penetration, and then the laser welding machine is used for welding at 600N/mm 2 The welding strength of each diamond tool bit is detected according to the strength standard, the surface of a substrate is polished to be bright by a polishing machine after the diamond saw blade is welded, then the working surface of the diamond tool bit is polished by a grinding wheel, the diamond is exposed, then the surface is sprayed with paint and dried to prevent the surface from rusting, and finally the diamond saw blade is polished at 600N/mm 2 And (5) detecting the welding strength of each diamond tool bit according to the strength standard, and printing, packaging and warehousing after the diamond tool bit is qualified.
Comparative example 2
The difference from example 2 is that the diamond tip was constituted by a diamond cutting portion, and an electrolytic powder having a diameter of 5 μm or less prepared from 15 wt% of copper powder, 11.2 wt% of nickel powder, 1.2 wt% of cobalt powder and the balance of iron powder as raw materials was used as a prealloy powder, and diamond particles having a particle size of 35/40 (concentration of 100%) were added as a raw material to prepare the diamondRaw material of the cutting portion. Putting the raw materials into a diamond tool bit die, cold pressing the raw materials into a diamond blank body, and then performing hot pressing sintering molding, wherein the hot pressing sintering temperature is 850 ℃ and the pressure is 320kg/cm 2 The incubation time was 180 seconds. Then the diamond tool bit is polished by a grinding wheel abrasive belt, the diamond tool bit and the matrix are put together on the corresponding matrix position according to the drawing requirement, the light spot of the laser welding machine is adjusted to the proper position of the tool bit and the matrix, the laser welding machine is started to weld, the tool bit and the matrix are welded together at the moment of laser penetration, and then the laser welding machine is used for welding at 600N/mm 2 The welding strength of each diamond tool bit is detected according to the strength standard, the surface of a substrate is polished to be bright by a polishing machine after the diamond saw blade is welded, then the working surface of the diamond tool bit is polished by a grinding wheel, the diamond is exposed, then the surface is sprayed with paint and dried to prevent the surface from rusting, and finally the diamond saw blade is polished at 600N/mm 2 And (5) detecting the welding strength of each diamond tool bit according to the strength standard, and printing, packaging and warehousing after the diamond tool bit is qualified.
Cutting experiments were performed on medium-hardness granite plates under air cooling conditions on diamond saw blades with diameters of 250mm prepared in examples 1 to 2 and comparative examples 1 to 2, and cutting lives at cutting speeds of 4.5m/min and 5.0m/min are shown in Table 1.
Cutting experiments were performed on medium-hardness cement concrete under air cooling conditions with diamond saw blades having diameters of 250mm prepared in examples 1 to 2 and comparative examples 1 to 2, and cutting lives thereof at cutting speeds of 5.0m/min and 7.0m/min, respectively, are shown in table 2.
TABLE 1
| Cutting speed | Example 1 | Example 2 | Comparative example 1 | Comparative example 2 |
| 4.5m/min | 612 | 593 | 619 | 603 |
| 5.0m/min | 589 | 573 | 566 | 543 |
TABLE 2
| Cutting speed | Example 1 | Example 2 | Comparative example 1 | Comparative example 2 |
| 5.0m/min | 1862 | 1795 | 1883 | 1782 |
| 7.0m/min | 1813 | 1722 | 1603 | 1556 |
Experiments show that the diamond bit saw blade with the hard grinding part and the diamond cutting part can show better service life under the high-speed cutting condition.
It will be apparent to those skilled in the art that the present invention has been described in detail by way of illustration only, and it is not intended to be limited by the above-described embodiments, as long as various insubstantial modifications of the method concepts and aspects of the invention are employed or the inventive concepts and aspects of the invention are directly applied to other applications without modification, all within the scope of the invention.
Claims (6)
1. A diamond saw blade comprising a disc-shaped substrate, the disc-shaped substrate comprising a side circumferential surface at an edge of the substrate, and a plurality of diamond tips distributed on the side circumferential surface; the method is characterized in that: each of the plurality of diamond tips is comprised of a hard abrasive segment and a diamond cutting segment; the height and thickness of the hard grinding part and the diamond cutting part are the same, and the length ratio along the outer circumferential direction of the disc-shaped substrate is 1:8-1:20; the hard grinding part and the diamond cutting part are integrally formed through a sintering process; the hard grinding part is formed by cold pressing and sintering of hard brazing filler metal which is not prealloyed, and does not contain diamond abrasive particles, and the diamond cutting part is formed by cold pressing and sintering after the prealloyed brazing filler metal and the diamond abrasive particles are mixed; when the diamond saw blade cuts the hard material, the hard grinding part can generate hard grinding particles along the cutting direction, and the self-sharpening of the exposed diamond abrasive particles of the diamond cutting part is facilitated.
2. A diamond saw blade according to claim 1, wherein: the plurality of diamond tips are evenly distributed on the side circumferential surface.
3. A diamond saw blade according to claim 1, wherein: chip grooves extending inwards along the circle center direction of the disc-shaped matrix from the side circumferential surfaces are arranged between the adjacent diamond tool tips.
4. A diamond saw blade according to claim 3, wherein: the chip removal groove consists of a trapezoid notch and a U-shaped groove.
5. A diamond saw blade according to claim 1, wherein: the diamond tips are disposed on the side circumferential surfaces by a brazing process.
6. A diamond saw blade according to claim 1, wherein: and a pore-forming agent is added into the hard solder which is not prealloyed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710711152.6A CN107379277B (en) | 2017-08-17 | 2017-08-17 | Diamond saw blade |
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| CN201710711152.6A CN107379277B (en) | 2017-08-17 | 2017-08-17 | Diamond saw blade |
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| CN107379277A CN107379277A (en) | 2017-11-24 |
| CN107379277B true CN107379277B (en) | 2023-07-14 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108582502B (en) * | 2018-05-07 | 2020-10-02 | 江苏锋泰工具有限公司 | Diamond saw blade and preparation method thereof |
| CN113976891B (en) * | 2021-09-08 | 2024-05-10 | 江苏华昌工具制造有限公司 | Diamond circular saw blade and preparation method thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3197520B2 (en) * | 1998-03-26 | 2001-08-13 | 兼房株式会社 | Diamond tip saw |
| KR100440870B1 (en) * | 2001-02-19 | 2004-07-19 | 이화다이아몬드공업 주식회사 | Diamond saw blade used undercut preventing tip |
| KR20050118074A (en) * | 2004-04-21 | 2005-12-15 | 이화다이아몬드공업 주식회사 | Cutting segment, method for manufacturing cutting segment and cutting tool |
| ES1059314Y (en) * | 2005-01-19 | 2005-07-16 | Herramientas Preziss S L | DISC FOR CIRCULAR SAW |
| CN104875287B (en) * | 2015-06-19 | 2017-05-24 | 江苏锋泰工具有限公司 | Dry and wet dual-purpose laser welding diamond saw blade |
| CN204955134U (en) * | 2015-09-11 | 2016-01-13 | 江苏友和工具有限公司 | Base member strenghthened type diamond circular saw piece |
| CN105922456B (en) * | 2016-06-23 | 2018-10-16 | 江苏锋泰工具有限公司 | Noise elimination diamond saw blade |
| CN207088211U (en) * | 2017-08-17 | 2018-03-13 | 江苏华昌工具制造有限公司 | Diamond saw blade |
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