CN105543597A - Boring tool for hole machining - Google Patents
Boring tool for hole machining Download PDFInfo
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- CN105543597A CN105543597A CN201610117332.7A CN201610117332A CN105543597A CN 105543597 A CN105543597 A CN 105543597A CN 201610117332 A CN201610117332 A CN 201610117332A CN 105543597 A CN105543597 A CN 105543597A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C22/00—Alloys based on manganese
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/05—Mixtures of metal powder with non-metallic powder
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
- C22C32/0005—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ with at least one oxide and at least one of carbides, nitrides, borides or silicides as the main non-metallic constituents
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
- C23C8/34—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases more than one element being applied in more than one step
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Abstract
The invention relates to a boring tool for hole machining. Strengthening phase powder and manganese-base alloy powder used as raw materials are mixed, and the boring tool is prepared through pressing, sintering, annealing, machining, quenching, tempering, carburizing and nitriding procedures. A strengthening phase in the boring tool for hole machining comprises titanium carbide, zirconium carbide, tungsten carbide, zirconia and Mo, and the mechanical property of the material is improved; raw material powder is mixed, pressing, sintering, annealing, machining, quenching, tempering, carburizing and nitriding procedures are performed, so that manufacturing procedures are simpler, and the cost is reduced.
Description
Technical field
The present invention relates to a kind of hole machined boring cutter, belongs to cutting-tool engineering field.
Background technology
In mechanical workout, usually carry out hole machined by boring cutter.Nowadays on market, the boring bar of boring cutter is generally a round bar, is easy in the course of the work cause amount of finish excessive, and the wearing and tearing of boring cutter are comparatively large, affect the work-ing life of boring cutter.And the vibratory magnitude that boring bar produces in the course of processing is large, and self also there will be tiny crack, causes the lost of life, affects the processing quality in hole, cannot reach the requirement of product surface roughness.
Summary of the invention
A kind of hole machined boring cutter, boring cutter is mixed by wild phase manganese-base alloy raw material powder, compacting sintering, annealing, machining, quenching, tempering, carburization step, and nitriding operation is prepared from:
Wild phase manganese-base alloy raw material powder comprises wild phase and manganese-base alloy, wild phase (weight) by titanium carbide 1 part, zirconium carbide 0.7-0.8 part, wolfram varbide 0.6-0.7 part, zirconium white 0.3-0.4 part, Mo0.6-0.7 part form; Manganese-base alloy (weight) is by C0.3-0.4%, Si1-2%, Cr15-16%, Mo0.6-0.7%, Bi0.2-0.3%, Cu0.1-0.2%, Co0.03-0.04%, Al0.01-0.02%, Ca0.01-0.02%, and surplus is Mn composition; The weight ratio of wild phase and manganese-base alloy is 0.7,
Wherein in powder mixed processes: take titanium carbide, zirconium carbide, wolfram varbide, zirconium white, Mo powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 6:1, and abrading-ball is hardened steel ball, Ball-milling Time 45h, applies the high-purity argon gas of more than 99.9%, obtains wild phase powder; Take aforementioned proportion manganese-base alloy powder, carry out ball milling alloying according to ratio of grinding media to material 17:1, Ball-milling Time 25h, interpolation dehydrated alcohol is process control agent, obtains manganese-base alloy micro mist; By wild phase powder and the mixing of manganese-base alloy micro mist, ball milling 90 hours again, obtains wild phase manganese-base alloy mixed powder;
Wherein in compacting sintering operation: the wild phase manganese-base alloy mixed powder of above-mentioned acquisition is dry, screening, is pressed into the size shape of required product; Then carry out vacuum sintering, carry out insulation 7 hours when temperature rise rate 30 DEG C/min is warming up to 1110 DEG C, rear furnace cooling,
Wherein in annealing operation: annealing temperature 860 DEG C, keep 4h, after then cooling to 120 DEG C with the furnace, take out naturally cooling in air;
Wherein in machining processes: according to the machining of boring cutter size;
Wherein quench, in tempering process: the temperature of described quench treatment is 900 DEG C, the temperature of described temper is 420 DEG C,
Carburization step: temperature 720-730 DEG C carbon potential 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 610-620 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling is to room temperature afterwards;
Nitriding operation: temperature 630 DEG C of nitrogen gesture 1.2%, insulation 3h, then reduces nitrogen gesture to 0.8%, insulation 5h, and furnace temperature rises to 730 DEG C afterwards, and nitrogen potential control is 0.3%; Insulation 7h, air cooling is to room temperature afterwards; Finally obtain boring cutter.
Described a kind of hole machined boring cutter, manganese-base alloy (weight) is by C0.3%, Si1%, Cr15%, Mo0.6%, Bi0.2%, Cu0.1%, Co0.03%, Al0.01%, Ca0.01%, and surplus is Mn composition.
Described a kind of hole machined boring cutter, manganese-base alloy (weight) is by C0.4%, Si2%, Cr16%, Mo0.7%, Bi0.3%, Cu0.2%, Co0.04%, Al0.02%, Ca0.02%, and surplus is Mn composition.
Described a kind of hole machined boring cutter, manganese-base alloy (weight) is by C0.35%, Si1.5%, Cr15.5%, Mo0.65%, Bi0.25%, Cu0.15%, Co0.035%, Al0.015%, Ca0.015%, and surplus is Mn composition.
Described a kind of hole machined boring cutter, carburization step: temperature 720 DEG C of carbon potentials 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 610 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling becomes to room temperature afterwards.
Described a kind of hole machined boring cutter, carburization step: temperature 730 DEG C of carbon potentials 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 620 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling becomes to room temperature afterwards.
Described a kind of hole machined boring cutter, carburization step: temperature 725 DEG C of carbon potentials 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 615 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling becomes to room temperature afterwards.
Described a kind of hole machined boring cutter, wild phase (weight) is by titanium carbide 1 part, and zirconium carbide 0.7 part, wolfram varbide 0.6 part, zirconium white 0.3 part, Mo0.6 part forms.
Described a kind of hole machined boring cutter, wild phase (weight) is by titanium carbide 1 part, and zirconium carbide 0.8 part, wolfram varbide 0.7 part, zirconium white 0.4 part, Mo0.7 part forms.
Described a kind of hole machined boring cutter, wild phase (weight) is by titanium carbide 1 part, and zirconium carbide 0.75 part, wolfram varbide 0.65 part, zirconium white 0.35 part, Mo0.65 part forms.
A manufacture method for hole machined boring cutter, boring cutter is mixed by wild phase manganese-base alloy raw material powder, compacting sintering, annealing, machining, quenching, tempering, carburization step, and nitriding operation is prepared from:
Wild phase manganese-base alloy raw material powder comprises wild phase and manganese-base alloy, wild phase (weight) by titanium carbide 1 part, zirconium carbide 0.7-0.8 part, wolfram varbide 0.6-0.7 part, zirconium white 0.3-0.4 part, Mo0.6-0.7 part form; Manganese-base alloy (weight) is by C0.3-0.4%, Si1-2%, Cr15-16%, Mo0.6-0.7%, Bi0.2-0.3%, Cu0.1-0.2%, Co0.03-0.04%, Al0.01-0.02%, Ca0.01-0.02%, and surplus is Mn composition; The weight ratio of wild phase and manganese-base alloy is 0.7,
Wherein in powder mixed processes: take titanium carbide, zirconium carbide, wolfram varbide, zirconium white, Mo powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 6:1, and abrading-ball is hardened steel ball, Ball-milling Time 45h, applies the high-purity argon gas of more than 99.9%, obtains wild phase powder; Take aforementioned proportion manganese-base alloy powder, carry out ball milling alloying according to ratio of grinding media to material 17:1, Ball-milling Time 25h, interpolation dehydrated alcohol is process control agent, obtains manganese-base alloy micro mist; By wild phase powder and the mixing of manganese-base alloy micro mist, ball milling 90 hours again, obtains wild phase manganese-base alloy mixed powder;
Wherein in compacting sintering operation: the wild phase manganese-base alloy mixed powder of above-mentioned acquisition is dry, screening, is pressed into the size shape of required product; Then carry out vacuum sintering, carry out insulation 7 hours when temperature rise rate 30 DEG C/min is warming up to 1110 DEG C, rear furnace cooling,
Wherein in annealing operation: annealing temperature 860 DEG C, keep 4h, after then cooling to 120 DEG C with the furnace, take out naturally cooling in air;
Wherein in machining processes: according to the machining of boring cutter size;
Wherein quench, in tempering process: the temperature of described quench treatment is 900 DEG C, the temperature of described temper is 420 DEG C,
Carburization step: temperature 720-730 DEG C carbon potential 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 610-620 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling is to room temperature afterwards;
Nitriding operation: temperature 630 DEG C of nitrogen gesture 1.2%, insulation 3h, then reduces nitrogen gesture to 0.8%, insulation 5h, and furnace temperature rises to 730 DEG C afterwards, and nitrogen potential control is 0.3%; Insulation 7h, air cooling is to room temperature afterwards; Finally obtain boring cutter.
Foregoing invention content is relative to the beneficial effect of prior art: 1) in hole machined boring cutter of the present invention strengthening phase by titanium carbide, zirconium carbide, wolfram varbide, zirconium white, Mo composition improves the mechanical property of material; 2) composition of manganese-base alloy has higher-strength, and under the effect of strengthening phase, manganese-base alloy intensity obtains further raising, and 3) raw material powder mixing, compacting sintering, annealing, machining, quenching, tempering, carburization step, nitriding operation makes manufacturing process more simple, reduces cost; 4) carburization step and nitriding operation improve surface hardness and the intensity of workpiece.
Embodiment
In order to there be understanding clearly to technical characteristic of the present invention, object and effect, now describe the specific embodiment of the present invention in detail.
Embodiment 1
A kind of hole machined boring cutter, boring cutter is mixed by wild phase manganese-base alloy raw material powder, compacting sintering, annealing, machining, quenching, tempering, carburization step, and nitriding operation is prepared from:
Wild phase manganese-base alloy raw material powder comprises wild phase and manganese-base alloy, wild phase (weight) by titanium carbide 1 part, zirconium carbide 0.7 part, wolfram varbide 0.6 part, zirconium white 0.3 part, Mo0.6 part form; Manganese-base alloy (weight) is by C0.3%, Si1%, Cr15%, Mo0.6%, Bi0.2%, Cu0.1%, Co0.03%, Al0.01%, Ca0.01%, and surplus is Mn composition; The weight ratio of wild phase and manganese-base alloy is 0.7,
Wherein in powder mixed processes: take titanium carbide, zirconium carbide, wolfram varbide, zirconium white, Mo powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 6:1, and abrading-ball is hardened steel ball, Ball-milling Time 45h, applies the high-purity argon gas of more than 99.9%, obtains wild phase powder; Take aforementioned proportion manganese-base alloy powder, carry out ball milling alloying according to ratio of grinding media to material 17:1, Ball-milling Time 25h, interpolation dehydrated alcohol is process control agent, obtains manganese-base alloy micro mist; By wild phase powder and the mixing of manganese-base alloy micro mist, ball milling 90 hours again, obtains wild phase manganese-base alloy mixed powder;
Wherein in compacting sintering operation: the wild phase manganese-base alloy mixed powder of above-mentioned acquisition is dry, screening, is pressed into the size shape of required product; Then carry out vacuum sintering, carry out insulation 7 hours when temperature rise rate 30 DEG C/min is warming up to 1110 DEG C, rear furnace cooling,
Wherein in annealing operation: annealing temperature 860 DEG C, keep 4h, after then cooling to 120 DEG C with the furnace, take out naturally cooling in air;
Wherein in machining processes: according to the machining of boring cutter size;
Wherein quench, in tempering process: the temperature of described quench treatment is 900 DEG C, the temperature of described temper is 420 DEG C,
Carburization step: temperature 720 DEG C of carbon potentials 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 610 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling is to room temperature afterwards;
Nitriding operation: temperature 630 DEG C of nitrogen gesture 1.2%, insulation 3h, then reduces nitrogen gesture to 0.8%, insulation 5h, and furnace temperature rises to 730 DEG C afterwards, and nitrogen potential control is 0.3%; Insulation 7h, air cooling is to room temperature afterwards; Finally obtain boring cutter.
Embodiment 2
A kind of hole machined boring cutter, boring cutter is mixed by wild phase manganese-base alloy raw material powder, compacting sintering, annealing, machining, quenching, tempering, carburization step, and nitriding operation is prepared from:
Wild phase manganese-base alloy raw material powder comprises wild phase and manganese-base alloy, wild phase (weight) by titanium carbide 1 part, zirconium carbide 0.8 part, wolfram varbide 0.7 part, zirconium white 0.4 part, Mo0.7 part form; Manganese-base alloy (weight) is by C0.4%, Si2%, Cr16%, Mo0.7%, Bi0.3%, Cu0.2%, Co0.04%, Al0.02%, Ca0.02%, and surplus is Mn composition; The weight ratio of wild phase and manganese-base alloy is 0.7,
Wherein in powder mixed processes: take titanium carbide, zirconium carbide, wolfram varbide, zirconium white, Mo powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 6:1, and abrading-ball is hardened steel ball, Ball-milling Time 45h, applies the high-purity argon gas of more than 99.9%, obtains wild phase powder; Take aforementioned proportion manganese-base alloy powder, carry out ball milling alloying according to ratio of grinding media to material 17:1, Ball-milling Time 25h, interpolation dehydrated alcohol is process control agent, obtains manganese-base alloy micro mist; By wild phase powder and the mixing of manganese-base alloy micro mist, ball milling 90 hours again, obtains wild phase manganese-base alloy mixed powder;
Wherein in compacting sintering operation: the wild phase manganese-base alloy mixed powder of above-mentioned acquisition is dry, screening, is pressed into the size shape of required product; Then carry out vacuum sintering, carry out insulation 7 hours when temperature rise rate 30 DEG C/min is warming up to 1110 DEG C, rear furnace cooling,
Wherein in annealing operation: annealing temperature 860 DEG C, keep 4h, after then cooling to 120 DEG C with the furnace, take out naturally cooling in air;
Wherein in machining processes: according to the machining of boring cutter size;
Wherein quench, in tempering process: the temperature of described quench treatment is 900 DEG C, the temperature of described temper is 420 DEG C,
Carburization step: temperature 730 DEG C of carbon potentials 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 620 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling is to room temperature afterwards;
Nitriding operation: temperature 630 DEG C of nitrogen gesture 1.2%, insulation 3h, then reduces nitrogen gesture to 0.8%, insulation 5h, and furnace temperature rises to 730 DEG C afterwards, and nitrogen potential control is 0.3%; Insulation 7h, air cooling is to room temperature afterwards; Finally obtain boring cutter.
Embodiment 3
A kind of hole machined boring cutter, boring cutter is mixed by wild phase manganese-base alloy raw material powder, compacting sintering, annealing, machining, quenching, tempering, carburization step, and nitriding operation is prepared from:
Wild phase manganese-base alloy raw material powder comprises wild phase and manganese-base alloy, wild phase (weight) by titanium carbide 1 part, zirconium carbide 0.75 part, wolfram varbide 0.65 part, zirconium white 0.35 part, Mo0.65 part form; Manganese-base alloy (weight) is by C0.35%, Si1.5%, Cr15.5%, Mo0.65%, Bi0.25%, Cu0.15%, Co0.035%, Al0.015%, Ca0.015%, and surplus is Mn composition; The weight ratio of wild phase and manganese-base alloy is 0.7,
Wherein in powder mixed processes: take titanium carbide, zirconium carbide, wolfram varbide, zirconium white, Mo powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 6:1, and abrading-ball is hardened steel ball, Ball-milling Time 45h, applies the high-purity argon gas of more than 99.9%, obtains wild phase powder; Take aforementioned proportion manganese-base alloy powder, carry out ball milling alloying according to ratio of grinding media to material 17:1, Ball-milling Time 25h, interpolation dehydrated alcohol is process control agent, obtains manganese-base alloy micro mist; By wild phase powder and the mixing of manganese-base alloy micro mist, ball milling 90 hours again, obtains wild phase manganese-base alloy mixed powder;
Wherein in compacting sintering operation: the wild phase manganese-base alloy mixed powder of above-mentioned acquisition is dry, screening, is pressed into the size shape of required product; Then carry out vacuum sintering, carry out insulation 7 hours when temperature rise rate 30 DEG C/min is warming up to 1110 DEG C, rear furnace cooling,
Wherein in annealing operation: annealing temperature 860 DEG C, keep 4h, after then cooling to 120 DEG C with the furnace, take out naturally cooling in air;
Wherein in machining processes: according to the machining of boring cutter size;
Wherein quench, in tempering process: the temperature of described quench treatment is 900 DEG C, the temperature of described temper is 420 DEG C,
Carburization step: temperature 725 DEG C of carbon potentials 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 615 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling is to room temperature afterwards;
Nitriding operation: temperature 630 DEG C of nitrogen gesture 1.2%, insulation 3h, then reduces nitrogen gesture to 0.8%, insulation 5h, and furnace temperature rises to 730 DEG C afterwards, and nitrogen potential control is 0.3%; Insulation 7h, air cooling is to room temperature afterwards; Finally obtain boring cutter.
Embodiment 4
A kind of hole machined boring cutter, boring cutter is mixed by wild phase manganese-base alloy raw material powder, compacting sintering, annealing, machining, quenching, tempering, carburization step, and nitriding operation is prepared from:
Wild phase manganese-base alloy raw material powder comprises wild phase and manganese-base alloy, wild phase (weight) by titanium carbide 1 part, zirconium carbide 0.74 part, wolfram varbide 0.63 part, zirconium white 0.32 part, Mo0.63 part form; Manganese-base alloy (weight) is by C0.32%, Si1.2%, Cr15.2%, Mo0.61%, Bi0.23%, Cu0.14%, Co0.033%, Al0.012%, Ca0.011%, and surplus is Mn composition; The weight ratio of wild phase and manganese-base alloy is 0.7,
Wherein in powder mixed processes: take titanium carbide, zirconium carbide, wolfram varbide, zirconium white, Mo powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 6:1, and abrading-ball is hardened steel ball, Ball-milling Time 45h, applies the high-purity argon gas of more than 99.9%, obtains wild phase powder; Take aforementioned proportion manganese-base alloy powder, carry out ball milling alloying according to ratio of grinding media to material 17:1, Ball-milling Time 25h, interpolation dehydrated alcohol is process control agent, obtains manganese-base alloy micro mist; By wild phase powder and the mixing of manganese-base alloy micro mist, ball milling 90 hours again, obtains wild phase manganese-base alloy mixed powder;
Wherein in compacting sintering operation: the wild phase manganese-base alloy mixed powder of above-mentioned acquisition is dry, screening, is pressed into the size shape of required product; Then carry out vacuum sintering, carry out insulation 7 hours when temperature rise rate 30 DEG C/min is warming up to 1110 DEG C, rear furnace cooling,
Wherein in annealing operation: annealing temperature 860 DEG C, keep 4h, after then cooling to 120 DEG C with the furnace, take out naturally cooling in air;
Wherein in machining processes: according to the machining of boring cutter size;
Wherein quench, in tempering process: the temperature of described quench treatment is 900 DEG C, the temperature of described temper is 420 DEG C,
Carburization step: temperature 723 DEG C of carbon potentials 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 614 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling is to room temperature afterwards;
Nitriding operation: temperature 630 DEG C of nitrogen gesture 1.2%, insulation 3h, then reduces nitrogen gesture to 0.8%, insulation 5h, and furnace temperature rises to 730 DEG C afterwards, and nitrogen potential control is 0.3%; Insulation 7h, air cooling is to room temperature afterwards; Finally obtain boring cutter.
Embodiment 5
A kind of hole machined boring cutter, boring cutter is mixed by wild phase manganese-base alloy raw material powder, compacting sintering, annealing, machining, quenching, tempering, carburization step, and nitriding operation is prepared from:
Wild phase manganese-base alloy raw material powder comprises wild phase and manganese-base alloy, wild phase (weight) by titanium carbide 1 part, zirconium carbide 0.78 part, wolfram varbide 0.67 part, zirconium white 0.39 part, Mo0.68 part form; Manganese-base alloy (weight) is by C0.37%, Si1.8%, Cr15.6%, Mo0.68%, Bi0.29%, Cu0.17%, Co0.036%, Al0.017%, Ca0.017%, and surplus is Mn composition; The weight ratio of wild phase and manganese-base alloy is 0.7,
Wherein in powder mixed processes: take titanium carbide, zirconium carbide, wolfram varbide, zirconium white, Mo powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 6:1, and abrading-ball is hardened steel ball, Ball-milling Time 45h, applies the high-purity argon gas of more than 99.9%, obtains wild phase powder; Take aforementioned proportion manganese-base alloy powder, carry out ball milling alloying according to ratio of grinding media to material 17:1, Ball-milling Time 25h, interpolation dehydrated alcohol is process control agent, obtains manganese-base alloy micro mist; By wild phase powder and the mixing of manganese-base alloy micro mist, ball milling 90 hours again, obtains wild phase manganese-base alloy mixed powder;
Wherein in compacting sintering operation: the wild phase manganese-base alloy mixed powder of above-mentioned acquisition is dry, screening, is pressed into the size shape of required product; Then carry out vacuum sintering, carry out insulation 7 hours when temperature rise rate 30 DEG C/min is warming up to 1110 DEG C, rear furnace cooling,
Wherein in annealing operation: annealing temperature 860 DEG C, keep 4h, after then cooling to 120 DEG C with the furnace, take out naturally cooling in air;
Wherein in machining processes: according to the machining of boring cutter size;
Wherein quench, in tempering process: the temperature of described quench treatment is 900 DEG C, the temperature of described temper is 420 DEG C,
Carburization step: temperature 728 DEG C of carbon potentials 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 617 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling is to room temperature afterwards;
Nitriding operation: temperature 630 DEG C of nitrogen gesture 1.2%, insulation 3h, then reduces nitrogen gesture to 0.8%, insulation 5h, and furnace temperature rises to 730 DEG C afterwards, and nitrogen potential control is 0.3%; Insulation 7h, air cooling is to room temperature afterwards; Finally obtain boring cutter.
Claims (10)
1. a hole machined boring cutter, boring cutter is mixed by wild phase manganese-base alloy raw material powder, compacting sintering, annealing, machining, quenching, tempering, carburization step, and the operations such as nitriding are prepared from:
Wild phase manganese-base alloy raw material powder comprises wild phase powder and manganese-base alloy powder, wild phase powder (weight) by titanium carbide 1 part, zirconium carbide 0.7-0.8 part, wolfram varbide 0.6-0.7 part, zirconium white 0.3-0.4 part, Mo0.6-0.7 part form; Manganese-base alloy (weight) is by C0.3-0.4%, Si1-2%, Cr15-16%, Mo0.6-0.7%, Bi0.2-0.3%, Cu0.1-0.2%, Co0.03-0.04%, Al0.01-0.02%, Ca0.01-0.02%, and surplus is Mn composition; The weight ratio of wild phase powder and manganese-base alloy powder is 0.7,
Wherein in powder mixed processes: take titanium carbide, zirconium carbide, wolfram varbide, zirconium white, Mo powder mixes according to aforementioned proportion, carries out ball milling alloying according to ratio of grinding media to material 6:1, and abrading-ball is hardened steel ball, Ball-milling Time 45h, applies the high-purity argon gas of more than 99.9%, obtains wild phase powder; Take aforementioned proportion manganese-base alloy powder, carry out ball milling alloying according to ratio of grinding media to material 17:1, Ball-milling Time 25h, interpolation dehydrated alcohol is process control agent, obtains manganese-base alloy micro mist; By wild phase powder and the mixing of manganese-base alloy micro mist, ball milling 90 hours again, obtains wild phase manganese-base alloy mixed powder;
Wherein in compacting sintering operation: the wild phase manganese-base alloy mixed powder of above-mentioned acquisition is dry, screening, is pressed into the size shape of required product; Then carry out vacuum sintering, carry out insulation 7 hours when temperature rise rate 30 DEG C/min is warming up to 1110 DEG C, rear furnace cooling,
Wherein in annealing operation: annealing temperature 860 DEG C, keep 4h, after then cooling to 120 DEG C with the furnace, take out naturally cooling in air;
Wherein in machining processes: according to the machining of boring cutter size;
Wherein quench, in tempering process: the temperature of described quench treatment is 900 DEG C, the temperature of described temper is 420 DEG C,
Carburization step: temperature 720-730 DEG C carbon potential 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 610-620 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling is to room temperature afterwards;
Nitriding operation: temperature 630 DEG C of nitrogen gesture 1.2%, insulation 3h, then reduces nitrogen gesture to 0.8%, insulation 5h, and furnace temperature rises to 730 DEG C afterwards, and nitrogen potential control is 0.3%; Insulation 7h, air cooling is to room temperature afterwards; Finally obtain boring cutter.
2. a kind of hole machined boring cutter as claimed in claim 1, manganese-base alloy (weight) is by C0.3%, Si1%, Cr15%, Mo0.6%, Bi0.2%, Cu0.1%, Co0.03%, Al0.01%, Ca0.01%, and surplus is Mn composition.
3. a kind of hole machined boring cutter as described in claim 1-3, manganese-base alloy (weight) is by C0.4%, Si2%, Cr16%, Mo0.7%, Bi0.3%, Cu0.2%, Co0.04%, Al0.02%, Ca0.02%, and surplus is Mn composition.
4. a kind of hole machined boring cutter as claimed in claim 1, manganese-base alloy (weight) is by C0.35%, Si1.5%, Cr15.5%, Mo0.65%, Bi0.25%, Cu0.15%, Co0.035%, Al0.015%, Ca0.015%, and surplus is Mn composition.
5. a kind of hole machined boring cutter as claimed in claim 1, carburization step: temperature 720 DEG C of carbon potentials 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 610 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling becomes to room temperature afterwards.
6. a kind of hole machined boring cutter as claimed in claim 1, carburization step: temperature 730 DEG C of carbon potentials 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 620 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling becomes to room temperature afterwards.
7. a kind of hole machined boring cutter as claimed in claim 1, carburization step: temperature 725 DEG C of carbon potentials 0.2%, insulation 4h, then raises carbon potential to 0.6%, insulation 7h, and furnace temperature is down to 615 DEG C afterwards, and carbon-potential control is 1.1%; Insulation 3h, air cooling becomes to room temperature afterwards.
8. a kind of hole machined boring cutter as claimed in claim 1, wild phase (weight) is by titanium carbide 1 part, and zirconium carbide 0.7 part, wolfram varbide 0.6 part, zirconium white 0.3 part, Mo0.6 part forms.
9. a kind of hole machined boring cutter as claimed in claim 1, wild phase (weight) is by titanium carbide 1 part, and zirconium carbide 0.8 part, wolfram varbide 0.7 part, zirconium white 0.4 part, Mo0.7 part forms.
10. a kind of hole machined boring cutter as claimed in claim 1, wild phase (weight) is by titanium carbide 1 part, and zirconium carbide 0.75 part, wolfram varbide 0.65 part, zirconium white 0.35 part, Mo0.65 part forms.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105922295A (en) * | 2016-06-01 | 2016-09-07 | 山东大学 | High-strength abrasion-resistant tool with vertical alignment of primary strengthening phase fibers |
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| CN102922607A (en) * | 2012-11-07 | 2013-02-13 | 山东日能超硬材料有限公司 | Gang saw cutting head for cutting granites and manufacture method thereof |
| CN105290437A (en) * | 2015-12-02 | 2016-02-03 | 北京航天新风机械设备有限责任公司 | Boring cutter for processing small holes in aluminum-based silicon carbide material |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201366747Y (en) * | 2009-03-20 | 2009-12-23 | 天津工程机械研究院 | Mixing knife for engineering machine |
| CN102922607A (en) * | 2012-11-07 | 2013-02-13 | 山东日能超硬材料有限公司 | Gang saw cutting head for cutting granites and manufacture method thereof |
| CN105290437A (en) * | 2015-12-02 | 2016-02-03 | 北京航天新风机械设备有限责任公司 | Boring cutter for processing small holes in aluminum-based silicon carbide material |
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