CN105296781A - Alloy material for cutter and preparation method thereof - Google Patents
Alloy material for cutter and preparation method thereof Download PDFInfo
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- CN105296781A CN105296781A CN201510869038.7A CN201510869038A CN105296781A CN 105296781 A CN105296781 A CN 105296781A CN 201510869038 A CN201510869038 A CN 201510869038A CN 105296781 A CN105296781 A CN 105296781A
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Abstract
The invention discloses an alloy material for a cutter and a preparation method thereof. The alloy material comprises the following components in parts by mass: 20-32 parts of chromium powder, 18-27 parts of silicon carbide, 9-14 parts of tantalum nitride, 5-12 parts of titanium aluminide, 4-10 parts of carbon fibers, 2-5 parts of tungsten sulfide, 4-8 parts of vanadium nitrogen alloy, 6-13 parts of silicon phosphate, 5-11 parts of nickel powder, 30-42 parts of iron powder and 9-22 parts of organic additive. The hardness value of the alloy material provided by the invention is high up to 219-257 HB; the fracture toughness is 8.8-10.2 MPa/m2; the material surface wear value is 0.12-0.19 mm; the hardness, the toughness and the wear resistance are excellent; and the alloy material can be suitable for processing application demands in severe environments.
Description
Technical field
The invention belongs to cutting-tool engineering field, particularly relate to a kind of cutter alloy material and preparation method thereof.
Background technology
In mechanical workout, during cutting constantly there is strong friction with chip and absorption surface in cutter, is easy to cause cutter sharply to wear and tear, thus reduction cutter life.In field of machining, what cutter material application was maximum is alloy steel material.The hardness of traditional alloy-steel cutter, toughness and wear resistance are all not good, add man-hour in mechanical cutting, and easily fracture wearing and tearing and need often to change, and adds machining cost; In addition, the material high for some hardness or the special situation of shape of product size, traditional alloy-steel cutter cannot be competent at.Therefore, need the cutter material providing a kind of hardness, toughness and wear resistance all good, to adapt to application demand widely.
Summary of the invention
The technical problem solved is: in order at least one solved the problem, and provides a kind of high rigidity, wear-resisting and cutter alloy material that toughness is good and preparation method thereof.
Technical scheme: in order to solve the problem, the invention provides a kind of cutter alloy material, the mass fraction of each moiety is: chromium powder 20 ~ 32 parts, 18 ~ 27 parts, silicon carbide, tantalum nitride 9 ~ 14 parts, titanium aluminide 5 ~ 12 parts, 4 ~ 10 parts, carbon fiber, tungsten sulfide 2 ~ 5 parts, VN alloy 4 ~ 8 parts, silicon phosphate 6 ~ 13 parts, nickel powder 5 ~ 11 parts, iron powder 30 ~ 42 parts and organic additive 9 ~ 22 parts.
The length of described carbon fiber is 1 ~ 2um.
Described organic additive is wax moulding agent.
The median size of described silicon carbide is less than 2um, and the median size of described tungsten sulfide is less than 1.5um.
Preferably, described cutter alloy material, the mass fraction of each moiety is: chromium powder 25 ~ 32 parts, 18 ~ 23 parts, silicon carbide, tantalum nitride 9 ~ 14 parts, titanium aluminide 6 ~ 12 parts, 4 ~ 8 parts, carbon fiber, tungsten sulfide 3 ~ 5 parts, VN alloy 4 ~ 8 parts, silicon phosphate 7 ~ 13 parts, nickel powder 7 ~ 11 parts, iron powder 33 ~ 42 parts and organic additive 11 ~ 22 parts.
Further, preferably, described cutter alloy material, it is characterized in that, the mass fraction of each moiety is: chromium powder 29 parts, 21 parts, silicon carbide, tantalum nitride 12 parts, titanium aluminide 8 parts, 7 parts, carbon fiber, tungsten sulfide 3 parts, VN alloy 5 parts, silicon phosphate 10 parts, nickel powder 8 parts, iron powder 35 parts and organic additive 16 parts.
The preparation method of described cutter alloy material, comprises the following steps:
(1) each raw material is taken according to certain mass number;
(2) all raw materials except organic additive are dropped in Place grinding machines, add appropriate acetone, wet-milling one night, after dry, cross 200 mesh sieves;
(3) organic additive is added mixing and stirring in step (2);
(4) gained compound in step (3) is placed in injection moulding machine and becomes green compact;
(5) gained green compact are first placed in vacuum oven, at 900 DEG C, carry out vacuum come unstuck; And then transposition is in pressure stove, in 800 ~ 1400 DEG C, sinter in nitrogen atmosphere;
(6) room temperature is naturally cooled to.
Described in described step (5), sintering condition is: be first warming up to 1400 DEG C with the speed of 15 DEG C/min, and be incubated 50min, be then down to 1200 DEG C with the speed of 5 DEG C/min, and be incubated 30min; Be cooled to 800 DEG C with the speed of 8 DEG C/min again, and be incubated 1h.
The present invention has following beneficial effect: alloy material hardness provided by the invention is high, good toughness and wear-resisting, and hardness value is up to 219 ~ 257HB, and fracture toughness property is 8.8 ~ 10.2MPa/m
2, the surface abrasion value of material is 0.12 ~ 0.19mm.Owing to not adding tantalum nitride, VN alloy and silicon phosphate in comparative example, hardness and Fracture Toughness obviously decline, and surface abrasion value also increases, this illustrates that tantalum nitride, VN alloy and silicon phosphate in alloy material play an important role improving the wear resistance of alloy material, toughness and hardness.
Embodiment
In order to understand the present invention further, below in conjunction with embodiment, invention preferred embodiment is described, but should be appreciated that these describe just for further illustrating the features and advantages of the present invention, instead of limiting to the claimed invention.
Embodiment 1
A kind of cutter alloy material, the mass fraction of each moiety is: chromium powder 20 parts, 18 parts, silicon carbide, tantalum nitride 9 parts, titanium aluminide 5 parts, 4 parts, carbon fiber, tungsten sulfide 2 parts, VN alloy 4 parts, silicon phosphate 6 parts, nickel powder 5 parts, iron powder 30 parts and organic additive 9 parts.
Wherein, the length of described carbon fiber is 1 ~ 2um.Described organic additive is wax moulding agent.The median size of described silicon carbide is less than 2um, and the median size of described tungsten sulfide is less than 1.5um.
The preparation method of described cutter alloy material, comprises the following steps:
(1) each raw material is taken according to certain mass number;
(2) all raw materials except organic additive are dropped in Place grinding machines, add appropriate acetone, wet-milling one night, after dry, cross 200 mesh sieves;
(3) organic additive is added mixing and stirring in step (2);
(4) gained compound in step (3) is placed in injection moulding machine and becomes green compact;
(5) gained green compact are first placed in vacuum oven, at 900 DEG C, carry out vacuum come unstuck; And then transposition is in pressure stove, in 800 ~ 1400 DEG C, sinter in nitrogen atmosphere, concrete sintering condition is: be first warming up to 1400 DEG C with the speed of 15 DEG C/min, and be incubated 50min, be then down to 1200 DEG C with the speed of 5 DEG C/min, and be incubated 30min; Be cooled to 800 DEG C with the speed of 8 DEG C/min again, and be incubated 1h;
(6) room temperature is naturally cooled to.
Embodiment 2
A kind of cutter alloy material, the mass fraction of each moiety is: chromium powder 25 parts, 23 parts, silicon carbide, tantalum nitride 10 parts, titanium aluminide 6 parts, 8 parts, carbon fiber, tungsten sulfide 3 parts, VN alloy 5 parts, silicon phosphate 7 parts, nickel powder 7 parts, iron powder 33 parts and organic additive 11 parts.
The preparation method of cutter alloy material described above and other content, see described in embodiment 1, do not repeat them here.
Embodiment 3
A kind of cutter alloy material, the mass fraction of each moiety is: chromium powder 26 parts, 22 parts, silicon carbide, tantalum nitride 12 parts, titanium aluminide 9 parts, 7 parts, carbon fiber, tungsten sulfide 3 parts, VN alloy 6 parts, silicon phosphate 9 parts, nickel powder 8 parts, iron powder 36 parts and organic additive 16 parts.
The preparation method of cutter alloy material described above and other content, see described in embodiment 1, do not repeat them here.
Embodiment 4
A kind of cutter alloy material, the mass fraction of each moiety is: chromium powder 29 parts, 21 parts, silicon carbide, tantalum nitride 12 parts, titanium aluminide 8 parts, 7 parts, carbon fiber, tungsten sulfide 3 parts, VN alloy 5 parts, silicon phosphate 10 parts, nickel powder 8 parts, iron powder 35 parts and organic additive 16 parts.
The preparation method of cutter alloy material described above and other content, see described in embodiment 1, do not repeat them here.
Embodiment 5
A kind of cutter alloy material, the mass fraction of each moiety is: chromium powder 32 parts, 27 parts, silicon carbide, tantalum nitride 14 parts, titanium aluminide 12 parts, 10 parts, carbon fiber, tungsten sulfide 5 parts, VN alloy 8 parts, silicon phosphate 13 parts, nickel powder 11 parts, iron powder 42 parts and organic additive 22 parts.
The preparation method of cutter alloy material described above and other content, see described in embodiment 1, do not repeat them here.
Comparative example 1
A kind of alloy material, the mass fraction of each moiety is: chromium powder 20 parts, 18 parts, silicon carbide, titanium aluminide 5 parts, 4 parts, carbon fiber, tungsten sulfide 2 parts, nickel powder 5 parts, iron powder 30 parts and organic additive 9 parts.
The preparation method of described alloy material, comprises the following steps:
(1) each raw material is taken according to certain mass number;
(2) all raw materials except organic additive are dropped in Place grinding machines, add appropriate acetone, wet-milling one night, after dry, cross 200 mesh sieves;
(3) organic additive is added mixing and stirring in step (2);
(4) gained compound in step (3) is placed in injection moulding machine and becomes green compact;
(5) gained green compact are first placed in vacuum oven, at 900 DEG C, carry out vacuum come unstuck; And then transposition is in pressure stove, sinters in nitrogen atmosphere, concrete sintering condition is: be first warming up to 1400 DEG C with the speed of 15 DEG C/min, and be incubated 50min, be then down to 1200 DEG C with the speed of 5 DEG C/min, and be incubated 30min; Be cooled to 800 DEG C with the speed of 8 DEG C/min again, and be incubated 1h;
(6) room temperature is naturally cooled to.
Performance test
Carry out measuring mechanical property to alloy material prepared in above-described embodiment and comparative example, its test result is as shown in the table:
From above-mentioned test result, alloy material hardness provided by the invention is high, good toughness and wear-resisting, and hardness value is up to 219 ~ 257HB, and fracture toughness property is 8.8 ~ 10.2MPa/m
2, the surface abrasion value of material is 0.12 ~ 0.19mm.Owing to not adding tantalum nitride, VN alloy and silicon phosphate in comparative example, hardness and Fracture Toughness obviously decline, and surface abrasion value also increases, this illustrates that tantalum nitride, VN alloy and silicon phosphate in alloy material play an important role improving the wear resistance of alloy material, toughness and hardness.
Claims (8)
1. a cutter alloy material, it is characterized in that, the mass fraction of each moiety is: chromium powder 20 ~ 32 parts, 18 ~ 27 parts, silicon carbide, tantalum nitride 9 ~ 14 parts, titanium aluminide 5 ~ 12 parts, 4 ~ 10 parts, carbon fiber, tungsten sulfide 2 ~ 5 parts, VN alloy 4 ~ 8 parts, silicon phosphate 6 ~ 13 parts, nickel powder 5 ~ 11 parts, iron powder 30 ~ 42 parts and organic additive 9 ~ 22 parts.
2. cutter alloy material according to claim 1, is characterized in that, the length of described carbon fiber is 1 ~ 2um.
3. cutter alloy material according to claim 1, is characterized in that, described organic additive is wax moulding agent.
4. cutter alloy material according to claim 1, is characterized in that, the median size of described silicon carbide is less than 2um, and the median size of described tungsten sulfide is less than 1.5um.
5. cutter alloy material according to claim 1, it is characterized in that, the mass fraction of each moiety is: chromium powder 25 ~ 32 parts, 18 ~ 23 parts, silicon carbide, tantalum nitride 9 ~ 14 parts, titanium aluminide 6 ~ 12 parts, 4 ~ 8 parts, carbon fiber, tungsten sulfide 3 ~ 5 parts, VN alloy 4 ~ 8 parts, silicon phosphate 7 ~ 13 parts, nickel powder 7 ~ 11 parts, iron powder 33 ~ 42 parts and organic additive 11 ~ 22 parts.
6. cutter alloy material according to claim 1, it is characterized in that, the mass fraction of each moiety is: chromium powder 29 parts, 21 parts, silicon carbide, tantalum nitride 12 parts, titanium aluminide 8 parts, 7 parts, carbon fiber, tungsten sulfide 3 parts, VN alloy 5 parts, silicon phosphate 10 parts, nickel powder 8 parts, iron powder 35 parts and organic additive 16 parts.
7. the preparation method of the cutter alloy material described in any one of claim 1 to 6, is characterized in that, comprise the following steps:
(1) each raw material is taken according to certain mass number;
(2) all raw materials except organic additive are dropped in Place grinding machines, add appropriate acetone, wet-milling one night, after dry, cross 200 mesh sieves;
(3) organic additive is added mixing and stirring in step (2);
(4) gained compound in step (3) is placed in injection moulding machine and becomes green compact;
(5) gained green compact are first placed in vacuum oven, at 900 DEG C, carry out vacuum come unstuck; And then transposition is in pressure stove, in 800 ~ 1400 DEG C, sinter in nitrogen atmosphere;
(6) room temperature is naturally cooled to.
8. the preparation method of cutter alloy material according to claim 7, it is characterized in that, described in described step (5), sintering condition is: be first warming up to 1400 DEG C with the speed of 15 DEG C/min, and be incubated 50min, then be down to 1200 DEG C with the speed of 5 DEG C/min, and be incubated 30min; Be cooled to 800 DEG C with the speed of 8 DEG C/min again, and be incubated 1h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510869038.7A CN105296781A (en) | 2015-12-02 | 2015-12-02 | Alloy material for cutter and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105801123A (en) * | 2016-03-03 | 2016-07-27 | 刘佩佩 | Self-lubricated silicon metal ceramic material for bearing and preparation method of self-lubricated silicon metal ceramic material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952985A (en) * | 2012-11-21 | 2013-03-06 | 邓湘凌 | High-hardness and high-toughness metal ceramic composition and preparation method thereof |
| CN103361578A (en) * | 2013-06-21 | 2013-10-23 | 马鞍山市恒毅机械制造有限公司 | Alloy chromium-powder-containing metallurgical steel and preparation method thereof |
| CN104630590A (en) * | 2015-02-12 | 2015-05-20 | 成都邦普合金材料有限公司 | Composite hard alloy material and preparation method thereof |
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- 2015-12-02 CN CN201510869038.7A patent/CN105296781A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102952985A (en) * | 2012-11-21 | 2013-03-06 | 邓湘凌 | High-hardness and high-toughness metal ceramic composition and preparation method thereof |
| CN103361578A (en) * | 2013-06-21 | 2013-10-23 | 马鞍山市恒毅机械制造有限公司 | Alloy chromium-powder-containing metallurgical steel and preparation method thereof |
| CN104630590A (en) * | 2015-02-12 | 2015-05-20 | 成都邦普合金材料有限公司 | Composite hard alloy material and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105801123A (en) * | 2016-03-03 | 2016-07-27 | 刘佩佩 | Self-lubricated silicon metal ceramic material for bearing and preparation method of self-lubricated silicon metal ceramic material |
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