CN109518054A - A kind of broaching tool material and preparation method thereof and broaching tool - Google Patents
A kind of broaching tool material and preparation method thereof and broaching tool Download PDFInfo
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- CN109518054A CN109518054A CN201910035714.9A CN201910035714A CN109518054A CN 109518054 A CN109518054 A CN 109518054A CN 201910035714 A CN201910035714 A CN 201910035714A CN 109518054 A CN109518054 A CN 109518054A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/04—Alloys based on tungsten or molybdenum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D43/00—Broaching tools
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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
- C22C1/045—Alloys based on refractory metals
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Abstract
The present invention provides a kind of broaching tool materials, in parts by weight, comprising: 85~88 parts of W；1.7~1.75 parts of Al；10.2~10.3 parts of Co；0.44~0.46 part of Cr；0.13~0.15 part of Hf；0.44~0.46 part of Nb；1.5~1.55 parts of Ta；0.04~0.06 part of Cu.Broaching tool material provided by the invention uses the metallic element of special component and rationally controls the mass content of each element, in particular by the aluminium element of 1.7~1.75 parts by weight, make broaching tool long service life, the cutter rigidity height, good stability of the dimension of this material preparation, the type face precision processed is high, finish is good, it is particularly suitable for the tongue-and-groove of the processing turbine disk, broaching tool service life can be significantly improved, cutter changing number is reduced, saves processing cost.The present invention also provides the preparation methods and broaching tool of a kind of broaching tool material.
Description
Technical field
The present invention relates to technical field of metal material more particularly to a kind of broaching tool material and preparation method thereof and broaching tools.
Background technique
Broaching tool is the forming tool for broaching, and when broaching tool makees broaching movement, cutter tooth is from certain thickness under workpiece incision
Metal, finally obtain required size and shape.Broaching tool is usually used in processing circular hole, splined hole, key with mass production in batch
Slot, plane and forming surface etc..
The broaching tool service life of the prior art is needed to be further increased preferably to apply.Therefore, broaching tool material is researched and developed
Material improves material property to obtain the broaching tool that the service life is longer, becomes the hot spot of those skilled in the art's research.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of broaching tool material and preparation method thereof, drawing provided by the invention
Knife material has preferable mechanical property, and the broaching tool of preparation is longer using life.
The present invention provides a kind of broaching tool materials, in parts by weight, comprising:
85~88 parts of W；
1.7~1.75 parts of Al；
10.2~10.3 parts of Co；
0.44~0.46 part of Cr；
0.13~0.15 part of Hf；
0.44~0.46 part of Nb；
1.5~1.55 parts of Ta；
0.04~0.06 part of Cu.
In the present invention, the W is carbide, and the carbide of formation can be improved the hard of broaching tool material
Degree, wearability and thermohardening.In the present invention, the parts by weight of the W are preferably 85.1~85.4 parts, more preferably 85.2~
85.3 parts.
In the present invention, the Al can refine crystal grain, improve hardness, thermohardening and the high temperature hardness of broaching tool material；Institute
The parts by weight for stating Al are preferably 1.71~1.74 parts, and more preferably 1.72~1.73 parts.The present invention uses 1.7~1.75 weight
The Al of part prepares broaching tool material, and broaching tool material can be made to have good mechanical property.
In the present invention, the Co can be improved the hardness and high temperature hardness of broaching tool material；The parts by weight of the Co are excellent
It is selected as 10.25 parts.
In the present invention, the Cr can refine crystal grain, improve the thermohardening and wearability of broaching tool material；The weight of the Cr
Measuring number is preferably 0.45 part.
In the present invention, the Hf can improve the intensity and hardness of broaching tool material；The parts by weight of the Hf are preferably
0.14 part.
In the present invention, the Nb can improve the elevated temperature strength and hardness of broaching tool material；The parts by weight of the Nb are preferred
It is 0.45 part.
In the present invention, the Ta can refine crystal grain, improve the elevated temperature strength and thermohardening of broaching tool material；The weight of the Ta
Measuring number is preferably 1.51~1.54 parts, and more preferably 1.52~1.53 parts.
In the present invention, the parts by weight of the Cu are preferably 0.05 part.
In the present invention, it is also preferable to include Ti in the broaching tool material；The parts by weight of the Ti preferably≤0.01 part, more
Preferably 0.002~0.008 part, most preferably 0.004~0.006 part.
In the present invention, it is also preferable to include Mn in the broaching tool material；The parts by weight of the Mn preferably≤0.01 part, more
Preferably 0.002~0.008 part, most preferably 0.004~0.006 part.
In the present invention, in the broaching tool material it is also preferable to include Fe, the parts by weight of the Fe preferably≤0.05 part, more
Preferably 0.01~0.04 part, most preferably 0.02~0.03 part.
Broaching tool material provided by the invention uses the metallic element of special component and rationally controls the dosage of each element, especially
It is the aluminium element using 1.7~1.75 parts by weight, makes broaching tool long service life, the cutter rigidity height, ruler of this material preparation
Very little stability is good, and the type face precision processed is high, finish is good, is particularly suitable for the tongue-and-groove of the processing turbine disk, can significantly mention
High broaching tool service life reduces cutter changing number, saves processing cost.
The present invention provides a kind of preparation methods of broaching tool material, comprising:
By the source W, the source Al, the source Co, the source Cr, the source Hf, the source Nb, the source Ta and the source Cu successively by mixing, grinding, suppressing and burning
Knot, obtains broaching tool material.
In the present invention, the source W is preferably tungsten.
In the present invention, the source Al is preferably metallic aluminium.
In the present invention, the source Co is preferably metallic cobalt.
In the present invention, the source Cr is preferably crome metal.
In the present invention, the source Hf is preferably metal hafnium.
In the present invention, the source Nb is preferably metal niobium.
In the present invention, the source Ta is preferably metal tantalum.
In the present invention, the source Cu is preferably metallic copper.
In the present invention, it is also preferable to include the sources Ti for the mixed material；The source Ti is preferably Titanium.
In the present invention, it is also preferable to include the sources Mn for the mixed material；The source Mn is preferably manganese metal.
In the present invention, it is also preferable to include the sources Fe for the mixed material；The source Fe is preferably metallic iron.
In the present invention, preferred before the mixing to carry out ingredient, it is special that the present invention does not have the method for the ingredient
Limitation, above-mentioned Metal Source materials are matched according to parts by weight described in above-mentioned technical proposal.
The present invention does not have special limitation to the mixed method, mixed using metal charge well known to those skilled in the art
The technical solution of conjunction is mixed.
In the present invention, the method ground is preferably wet-milling；The present invention is to the specific method of the wet-milling without spy
Different limitation, using the technical solution of metal material wet-milling well known to those skilled in the art.In the present invention, described wet
The medium of mill is preferably alcohol, and the scalar quantity of the alcohol is preferably 0.18~0.47L/KG, more preferably 0.2~0.4L/KG,
Most preferably 0.3L/KG.
In the present invention, it is described grind after the obtained average particle size of material be preferably 15~25 μm, more preferably 20 μm.
In the present invention, it is described grind and suppress between it is also preferable to include clarifications.The present invention does not have the clear method
There is special limitation, using clear technical solution after wet-milling well known to those skilled in the art.In the present invention, described
Clarification preferably stands and places, and the time that the standing is placed is preferably 10~15 hours, more preferably 11~14 hours, optimal
It is selected as 12~13 hours.
In the present invention, it is also preferable to include dryings between the clarification and compacting.Specific side of the present invention to the drying
Method does not have specific limitation, using dry technology scheme well known to those skilled in the art by the dry materials after wet-milling.?
In the present invention, the temperature of the drying is preferably 100~130 DEG C, more preferably 105~125 DEG C, most preferably 110~120
℃；The time of the drying is preferably 10~20 hours, more preferably 12~18 hours, most preferably 14~16 hours.
In the present invention, it is also preferable to include filterings between the drying and compacting.The present invention does not have the method for the filtering
There is special limitation, using filter method well known to those skilled in the art, the impurity in the material after drying is removed.
In the present invention, the method for the filtering is preferably filtered using filter screen, and the mesh number of the filter screen is preferably 110~
130 mesh, more preferably 120 mesh.
In the present invention, it is also preferable to include identification, the coercives for being accredited as beta alloy between the filtering and compacting
Magnetic force.
In the present invention, the method for the compacting is preferred are as follows:
It is first pressed and molded, then carries out cold isostatic compaction.
In the present invention, the compression molding preferably uses hydraulic press, and the tonnage of the hydraulic press is preferably 200~300
Ton, more preferably 240~260 tons, most preferably 250 tons；Pressure during the compression molding is preferably 120~130
Ton, more preferably 125 tons；Dwell time is preferably 5~6 minutes.
In the present invention, the cold isostatic compaction is to be directly acted on using the static pressure of highly pressurised liquid mounted in springform
Material in tool keeps briquetting multidirectional while a kind of forming method of balanced compression, and the medium by transmitting pressure is aqueous solution,
Claim hydrostatic pressing.The present invention does not have special limitation to the specific method of the cold isostatic compaction, using those skilled in the art
The method and apparatus of isostatic cool pressing known to member carries out isostatic cool pressing.In the present invention, during the isostatic cool pressing
Pressure is preferably 1~2 ton, and more preferably 1.5 tons.
In the present invention, the method for the sintering is preferred are as follows:
It is successively pre-sintered, seeps wax, dewaxing and vacuum-sintering.
In the present invention, the pre-sintering preferably carries out in atmospheric conditions.In the present invention, the temperature of the pre-sintering
Preferably 580~620 DEG C, more preferably 590~610 DEG C, most preferably 600 DEG C.In the present invention, the time of the pre-sintering
Preferably 1~1.5 hour, more preferably 1.2~1.3 hours.
In the present invention, the wax that seeps can be improved the plasticity of blank, in favor of processing.In the present invention, the infiltration
The method of wax is preferred are as follows:
Product after pre-sintering is put into after being heated in paraffin and is taken out.
In the present invention, the temperature of the paraffin is preferably 50~70 DEG C, more preferably 55~65 DEG C, most preferably 60
℃.In the present invention, the heating preferably makes paraffin be warming up to 180~220 DEG C of stoppings, more preferably 190~210 DEG C, optimal
It is selected as 200 DEG C.In the present invention, the temperature of paraffin is preferably 50~70 DEG C when the taking-up, more preferably 55~65 DEG C, optimal
It is selected as 60 DEG C.
In the present invention, the dewaxing preferably carries out under normal pressure.In the present invention, the temperature of the dewaxing is preferably 70
~90 DEG C, more preferably 75~85 DEG C, most preferably 80 DEG C；Forming agent paraffin is removed from broaching tool material under dewaxing temperature.
In the present invention, the time of the dewaxing is preferably 10~15min, more preferably 12~13min.
In the present invention, the vacuum degree of the vacuum-sintering is preferably 90~110Pa, more preferably 90~100Pa, optimal
It is selected as 90Pa.
In the present invention, the temperature of the vacuum-sintering is preferably 1430~1440 DEG C, and more preferably 1432~1438 DEG C,
Most preferably 1435 DEG C.In the present invention, the time of the vacuum-sintering is preferably 20~40min, more preferably 25~
35min, most preferably 30min.
In the present invention, the vacuum-sintering preferably carries out under conditions of protective gas, and the protective gas is excellent
It is selected as inert gas, more preferably argon gas.
The present invention preferably completes above-mentioned pre-sintering, dewaxing and vacuum-sintering in same equipment.
In the present invention, after the completion of the sintering, it is also preferable to include:
Sintered product is blown sand, broaching tool material is obtained.
In the present invention, the method blown sand preferably uses fine emery powder uniformly to blow sand, and the time blown sand is excellent
It is selected as 1~2 minute.
In the present invention, the preparation method of the broaching tool material preferably includes:
The raw metal for preparing broaching tool material is successively subjected to ingredient, mixing, wet-milling, clarification, drying, filtering, identification, pressure
It makes, be sintered and blow sand, obtain broaching tool material.
In the present invention, the ingredient, mixing, wet-milling, clarification, drying, filtering, identification, compacting, the side for being sintered and blowing sand
Consistent described in method and above-mentioned technical proposal, details are not described herein.
The present invention also provides a kind of broaching tool, the material of the broaching tool be broaching tool material described in above-mentioned technical proposal or on
State the broaching tool material that method described in technical solution is prepared.
The experimental results showed that broaching tool material coercive force provided by the invention reaches 21KA/m；Cobalt magnetic reaches 9.21KA/m；
Density reaches 14.5g/cm3；Hardness is HRA91.5~92；Bending strength >=155kg/mm2.Broaching tool material tool provided by the invention
There is preferable comprehensive performance, high hardness and bending strength not only ensure that the wearability of broaching tool but also guaranteed that broaching tool has good toughness
And intensity, it ensure that the reliability of broaching tool and the safety of workpiece while improving the broaching tool service life.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff it is improved or retouching all other example, shall fall within the protection scope of the present invention.
Raw materials used following embodiment of the present invention is commercial goods.
Embodiment 1
By tungsten, metallic aluminium, metallic cobalt, crome metal, metal hafnium, metal niobium, metal tantalum, Titanium, manganese metal, metal
Iron and metallic copper carry out ingredient, mixing, obtain mixture；
Obtained mixture is subjected to wet-milling, the wet-milling uses alcohol for solvent, obtains the slurry that average particle size is 25 μm
Material；
The slurry is stood to place 10 hours and is clarified；
Material after clarification is 12 hours dry at 120 DEG C；
Use the filter screen of 100 mesh into filtering the material after drying；
Filtered material test coercive force is identified；
Material after identification is first pressed and molded, then carries out cold isostatic compaction；It is adopted during the compression molding
With 125 tons pressure pressure maintaining 5 minutes, the cold isostatic compaction uses 1.5 tons of pressure.
It is put after the semi-finished product obtained after compacting to be carried out in vacuum heat treatment furnace to pre-sintering in 1 hour at normal pressure, 580 DEG C
Enter and heated in 55 DEG C of paraffin, until paraffin temperature is 180 DEG C of stopping heating, has then been taken out when paraffin temperature is 55 DEG C
At infiltration wax；Product after infiltration wax is carried out to the dewaxing of 10min at 75 DEG C；It will finally be vacuumized in furnace and reach 100Pa, then be passed through
Argon gas is sintered 20min at 1430 DEG C, obtains finished product as protection gas；
The finished product is uniformly blown sand using thin Buddha's warrior attendant, obtains broaching tool material.
" hard alloy X-ray is glimmering using GB/T 26050-2010 for the broaching tool material that the embodiment of the present invention 1 is prepared
Light measurement metal element content fusion method " its ingredient is tested, testing result is ingredient are as follows: the W of 85.45wt%, 1.7wt%
Al；The Co of 10.2wt%；The Cr of 0.44wt%；The Hf of 0.13wt%；The Nb of 0.44wt%；The Ta of 1.5wt%；0.01wt%
Ti；The Mn of 0.01wt%；The Fe of 0.05wt%；The Cu of 0.06wt%；Surplus is impurity.
The coercive force automatic measuring instrument provided using Changsha Zhong great precision instrument Co., Ltd tests the embodiment of the present invention
The coercive force of the 1 broaching tool material being prepared, testing result are the coercive force of broaching tool material prepared by the embodiment of the present invention 1
Power is 16.24KA/m (203 oersted).
Using specific saturation magnetization cobalt magnetic automatic measuring instrument, the broaching tool material that the embodiment of the present invention 1 is prepared is tested
Cobalt magnetic, testing result is, the cobalt magnetic of broaching tool material prepared by the embodiment of the present invention 1 is 9.2KA/m.
Weight method, the density for the broaching tool material that the test embodiment of the present invention 1 is prepared, testing result are drained using waxdip
For the density of broaching tool material prepared by the embodiment of the present invention 1 is 14.55g/cm.
Using Rockwell hardness test method, the hardness for the broaching tool material that the embodiment of the present invention 1 is prepared, detection knot are tested
Fruit is that the hardness of broaching tool material prepared by the embodiment of the present invention 1 is HRA 91.5.
Using GB/T 6569-1986 " engineering ceramics bending strength test method ", tests the embodiment of the present invention 1 and be prepared into
The bending strength of the broaching tool material arrived, testing result are that the bending strength of broaching tool material prepared by the embodiment of the present invention 1 is
155kg/mm2。
Embodiment 2
By tungsten, metallic aluminium, metallic cobalt, crome metal, metal hafnium, metal niobium, metal tantalum, Titanium, manganese metal, metal
Iron and metallic copper carry out ingredient, mixing, obtain mixture；
Obtained mixture is subjected to wet-milling, for alcohol, obtain average particle size is the solvent used during the wet-milling
20 μm of slurry；
The slurry is stood to place 12 hours and is clarified；
Material after clarification is 15 hours dry at 120 DEG C；
Use the filter screen of 120 mesh into filtering the material after drying；
Filtered material detection coercive force is identified；
Material after identification is first pressed and molded, then carries out cold isostatic compaction；It is adopted during the compression molding
With 125 tons pressure pressure maintaining 6 minutes, the pressure during the cold isostatic compaction is 1.5 tons.
Pressed semi-finished product are carried out to be pre-sintered within 1.2 hours in vacuum heat treatment furnace at normal pressure, 600 DEG C, are then put
Enter and heated in the paraffin that temperature is 60 DEG C, until paraffin temperature is 200 DEG C of stopping heating, then when paraffin temperature is 60 DEG C
It takes out and completes to seep wax；Product after infiltration wax is carried out to the dewaxing of 12min at 80 DEG C；It will finally be vacuumized in furnace and reach 100Pa,
It is passed through argon gas again as protection gas, is sintered 30min at 1435 DEG C, obtains finished product；
The finished product is uniformly blown sand using fine emery powder, obtains broaching tool material.
According to the method for embodiment 1, the ingredient for the broaching tool material that the detection embodiment of the present invention 2 is prepared are as follows:
The Al of the W of 85.3wt%, 1.73wt%；The Co of 10.3wt%；The Cr of 0.45wt%；The Hf of 0.14wt%；The Nb of 0.45wt%；
The Ta of 1.53wt%；The Ti of 0.004wt%；The Mn of 0.006wt%；The Fe of 0.02wt%；The Cu of 0.05wt%；Surplus is miscellaneous
Matter.
According to the method for embodiment 1, the coercive force for the broaching tool material that the test embodiment of the present invention 2 is prepared, detection
It as a result is that the coercive force of broaching tool material prepared by the embodiment of the present invention 2 is 21KA/m.
According to the method for embodiment 1, the cobalt magnetic for the broaching tool material that the test embodiment of the present invention 2 is prepared, testing result
For the cobalt magnetic of broaching tool material prepared by the embodiment of the present invention 2 is 9.21KA/m.
According to the method for embodiment 1, the density for the broaching tool material that the test embodiment of the present invention 2 is prepared, testing result
For the density of broaching tool material prepared by the embodiment of the present invention 2 is 14.5g/cm3。
According to the method for embodiment 1, the hardness for the broaching tool material that the test embodiment of the present invention 2 is prepared, testing result
For the hardness of broaching tool material prepared by the embodiment of the present invention 2 is HRA92.
According to the method for embodiment 1, the bending strength for the broaching tool material that the test embodiment of the present invention 2 is prepared, detection
It as a result is that the bending strength of broaching tool material prepared by the embodiment of the present invention 2 is 160kg/mm2。
Embodiment 3
By tungsten, metallic aluminium, metallic cobalt, crome metal, metal hafnium, metal niobium, metal tantalum, Titanium, manganese metal, metal
Iron and metallic copper carry out ingredient, mixing, obtain mixture；
Obtained mixture is subjected to wet-milling, uses alcohol for solvent during the wet-milling, obtaining average particle size is 18 μ
The slurry of m；
The slurry is stood to place 15 hours and is clarified；
Material after clarification is 16 hours dry at 125 DEG C；
Use the filter screen of 130 mesh into filtering the material after drying；
Filtered material detection coercive force is identified；
Material after identification is first pressed and molded, then carries out cold isostatic compaction；The compression molding exists in the process
Pressure maintaining 5 minutes under 130 tons of pressure, the pressure during the cold isostatic compaction are 2 tons.
It is put after pressed semi-finished product to be carried out in vacuum heat treatment furnace to pre- thermal sintering in 1.5 hours at normal pressure, 620 DEG C
Enter and heated in 65 DEG C of paraffin, until paraffin temperature is 200 DEG C of stopping heating, has then been taken out when paraffin temperature is 65 DEG C
At infiltration wax；Product after infiltration wax is subjected to 15min dewaxing at 85 DEG C；It will finally be vacuumized in furnace and reach 100Pa, then be passed through argon
Gas is sintered 40min at 1440 DEG C, obtains finished product as protection gas；
The finished product is uniformly blown sand using fine emery powder, obtains broaching tool material.
According to the method for embodiment 1, the ingredient for the broaching tool material that the detection embodiment of the present invention 3 is prepared are as follows:
The Al of the W of 85.3wt%, 1.74wt%；The Co of 10.3wt%；The Cr of 0.46wt%；The Hf of 0.14wt%；The Nb of 0.45wt%；
The Ta of 1.54wt%；The Ti of 0.002wt%；The Mn of 0.002wt%；The Fe of 0.01wt%；The Cu of 0.04wt%；Surplus is miscellaneous
Matter.
According to the method for embodiment 1, the coercive force for the broaching tool material that the test embodiment of the present invention 3 is prepared, detection
It as a result is that the coercive force of broaching tool material prepared by the embodiment of the present invention 3 is 19KA/m.
According to the method for embodiment 1, the cobalt magnetic for the broaching tool material that the test embodiment of the present invention 3 is prepared, testing result
For the cobalt magnetic of broaching tool material prepared by the embodiment of the present invention 3 is 9.15KA/m.
According to the method for embodiment 1, the density for the broaching tool material that the test embodiment of the present invention 3 is prepared, testing result
For the density of broaching tool material prepared by the embodiment of the present invention 3 is 14.3g/cm3。
According to the method for embodiment 1, the hardness for the broaching tool material that the test embodiment of the present invention 3 is prepared, testing result
For the hardness of broaching tool material prepared by the embodiment of the present invention 3 is HRA91.7.
According to the method for embodiment 1, the bending strength for the broaching tool material that the test embodiment of the present invention 3 is prepared, detection
It as a result is that the bending strength of broaching tool material prepared by the embodiment of the present invention 3 is 158kg/mm2。
Comparative example 1
Broaching tool material is prepared according to method as described in example 2, the difference from example 2 is that, Al in broaching tool material
The mass content that mass content is 1.6%, W is 85.43%.
According to the method for embodiment 1, the coercive force for the broaching tool material that comparative example 1 of the present invention is prepared, detection are tested
It as a result is that the coercive force of broaching tool material prepared by comparative example 1 of the present invention is 18.9KA/m.
According to the method for embodiment 1, the cobalt magnetic for the broaching tool material that comparative example 1 of the present invention is prepared, testing result are tested
For the cobalt magnetic of broaching tool material prepared by comparative example 1 of the present invention is 9.1KA/m.
According to the method for embodiment 1, the density for the broaching tool material that comparative example 1 of the present invention is prepared, testing result are tested
For the density of broaching tool material prepared by comparative example 1 of the present invention is 14.4g/cm3。
According to the method for embodiment 1, the hardness for the broaching tool material that comparative example 1 of the present invention is prepared, testing result are tested
For the hardness of broaching tool material prepared by comparative example 1 of the present invention is HRA91.5.
According to the method for embodiment 1, the bending strength for the broaching tool material that comparative example 1 of the present invention is prepared, detection are tested
It as a result is that the bending strength of broaching tool material prepared by comparative example 1 of the present invention is 155kg/mm2。
Comparative example 2
Broaching tool material is prepared according to method as described in example 2, the difference from example 2 is that, Al in broaching tool material
The mass content that mass content is 1.8%, W is 85.23%.
According to the method for embodiment 1, the coercive force for the broaching tool material that comparative example 2 of the present invention is prepared, detection are tested
It as a result is that the coercive force of broaching tool material prepared by comparative example 2 of the present invention is 18KA/m.
According to the method for embodiment 1, the cobalt magnetic for the broaching tool material that comparative example 2 of the present invention is prepared, testing result are tested
For the cobalt magnetic of broaching tool material prepared by comparative example 2 of the present invention is 9.0KA/m.
According to the method for embodiment 1, the density for the broaching tool material that comparative example 2 of the present invention is prepared, testing result are tested
For the density of broaching tool material prepared by comparative example 2 of the present invention is 14.2g/cm3。
According to the method for embodiment 1, the hardness for the broaching tool material that comparative example 2 of the present invention is prepared, testing result are tested
For the hardness of broaching tool material prepared by comparative example 2 of the present invention is HRA92.2.
According to the method for embodiment 1, the bending strength for the broaching tool material that comparative example 2 of the present invention is prepared, detection are tested
It as a result is that the bending strength of broaching tool material prepared by comparative example 2 of the present invention is 150kg/mm2。
As seen from the above embodiment, the present invention provides a kind of broaching tool materials, in parts by weight, comprising: 85~85.5 parts
W；1.7~1.75 parts of Al；10.2~10.3 parts of Co；0.44~0.46 part of Cr；0.13~0.15 part of Hf；0.44~
0.46 part of Nb；1.5~1.55 parts of Ta；0.04~0.06 part of Cu.Broaching tool material provided by the invention uses special component
Metallic element and rationally control each element mass content make this in particular by the aluminium element of 1.7~1.75wt% content
The broaching tool long service life of kind material preparation, cutter rigidity height, good stability of the dimension, the type face precision height processed, finish
It is good, it is particularly suitable for the tongue-and-groove of the processing turbine disk, broaching tool service life can be significantly improved, reduces cutter changing number, is saved
Processing cost.
What has been described above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill of the art
For personnel, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (10)
1. a kind of broaching tool material, in parts by weight, comprising:
85~88 parts of W；
1.7~1.75 parts of Al；
10.2~10.3 parts of Co；
0.44~0.46 part of Cr；
0.13~0.15 part of Hf；
0.44~0.46 part of Nb；
1.5~1.55 parts of Ta；
0.04~0.06 part of Cu.
2. broaching tool material according to claim 1, which is characterized in that further include Ti；Parts by weight≤0.01 of the Ti
Part.
3. broaching tool material according to claim 1, which is characterized in that further include Mn；Parts by weight≤0.01 of the Mn
Part.
4. broaching tool material according to claim 1, which is characterized in that further include Fe；Parts by weight≤0.05 of the Fe
Part.
5. broaching tool material according to claim 1, which is characterized in that the broaching tool material is in parts by weight, comprising:
85.1~85.4 parts of W；
1.71~1.74 parts of Al；
10.25 the Co of part；
0.45 part of Cr；
0.14 part of Hf；
0.45 part of Nb；
1.51~1.54 parts of Ta；
0.05 part of Cu；
0.002~0.008 part of Ti；
0.002~0.008 part of Mn；
0.01~0.04 part of Fe.
6. broaching tool material according to claim 1, which is characterized in that the broaching tool material is in parts by weight, comprising:
85.2~85.3 parts of W；
1.72~1.73 parts of Al；
10.25 the Co of part；
0.45 part of Cr；
0.14 part of Hf；
0.45 part of Nb；
1.52~1.53 parts of Ta；
0.05 part of Cu；
0.004~0.006 part of Ti；
0.004~0.006 part of Mn；
0.02~0.03 part of Fe.
7. a kind of preparation method of broaching tool material, comprising:
By the source W, the source Al, the source Co, the source Cr, the source Hf, the source Nb and the source Cu successively by mixing, grinding, suppressing and being sintered, broaching tool is obtained
Material.
8. the method according to the description of claim 7 is characterized in that the method for the compacting are as follows:
It is first pressed and molded and carries out cold isostatic compaction again.
9. the method according to the description of claim 7 is characterized in that the temperature of the sintering is 1430~1440 DEG C.
10. a kind of broaching tool, the material of the broaching tool is broaching tool material described in claim 1 or method of claim 7
The broaching tool material being prepared.
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| CN201910035714.9A CN109518054A (en) | 2019-01-15 | 2019-01-15 | A kind of broaching tool material and preparation method thereof and broaching tool |
| RU2019113442A RU2019113442A (en) | 2019-01-15 | 2019-04-30 | PULLING MATERIAL, METHOD OF ITS PRODUCTION AND PULLING |
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| CN201910035714.9A CN109518054A (en) | 2019-01-15 | 2019-01-15 | A kind of broaching tool material and preparation method thereof and broaching tool |
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| RU2019113442A3 (en) | 2020-10-30 |
| RU2019113442A (en) | 2020-10-30 |
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