CN101596611A - Be used to cut off, the carbide chip of grooving and cutting thread - Google Patents
Be used to cut off, the carbide chip of grooving and cutting thread Download PDFInfo
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- CN101596611A CN101596611A CNA2008101095569A CN200810109556A CN101596611A CN 101596611 A CN101596611 A CN 101596611A CN A2008101095569 A CNA2008101095569 A CN A2008101095569A CN 200810109556 A CN200810109556 A CN 200810109556A CN 101596611 A CN101596611 A CN 101596611A
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- 238000005520 cutting process Methods 0.000 title claims abstract description 76
- 238000000576 coating method Methods 0.000 claims abstract description 45
- 239000011248 coating agent Substances 0.000 claims abstract description 43
- 239000000758 substrate Substances 0.000 claims abstract description 33
- 239000010959 steel Substances 0.000 claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 20
- 239000010935 stainless steel Substances 0.000 claims abstract description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 11
- 229910045601 alloy Inorganic materials 0.000 claims description 29
- 239000000956 alloy Substances 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 17
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical group [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 9
- 229910052804 chromium Inorganic materials 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 238000001755 magnetron sputter deposition Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 description 59
- 239000012809 cooling fluid Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 239000011247 coating layer Substances 0.000 description 7
- 229910009043 WC-Co Inorganic materials 0.000 description 4
- 230000004087 circulation Effects 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 238000005240 physical vapour deposition Methods 0.000 description 3
- 229910001080 W alloy Inorganic materials 0.000 description 2
- 229910001026 inconel Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910000601 superalloy Inorganic materials 0.000 description 2
- 239000013077 target material Substances 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 229910010038 TiAl Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910000816 inconels 718 Inorganic materials 0.000 description 1
- 229910001256 stainless steel alloy Inorganic materials 0.000 description 1
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- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The present invention relates to a kind of be used for to steel and stainless steel cut off, the cutting tip of grooving and cutting thread, it comprises substrate and coating.Described substrate comprises WC, the Co of 7.5-10.5wt-%, the Cr of 0.7-1.1wt-%, the Ti of 100-300ppm.Ti can partly replace with Ta, reaches weight ratio 〉=0.8 of Ti/Ta.Described coating comprises having different al/two (Ti, Al) N layers: internal layer Al of Ti ratio
yTi
1-yN and outer Al
wTi
1-wN, y=0.4-0.67 wherein, w=0.15-0.35, described in layer thickness be 0.3-2.5 μ m, described outer layer thickness is 0.5-5.0 μ m.
Description
Technical field
The present invention relates to a kind of cutting tool insert of band coating, be specially adapted under wet condition to steel, stainless steel and superalloy (HRSA) cut off, grooving and cutting thread.The PVD coating of multilayer has greatly improved the wearability of back knife face, and the fine grain substrate of Gao Ge provides good plasticity_resistant deformation.
Background technology
Be used for to more different rapidoprint (as steel, stainless steel and HRSA) cut off, the cutting tool insert of the band coating of grooving and cutting thread must have following feature:
1. higher opposing plastic deformation, this is that especially the point of a knife location when cutting thread produces very high temperature because Cutting Process produces very high temperature at the cutting edge place of blade.
2. good opposing corrosion wear is so that avoid very fast growth wear of the tool flank.
3. good opposing adhesion wear, and good tack between substrate and the coating.Especially stainless chip is highly susceptible to being soldered on the surface of blade.
4. good edge line toughness is so that avoid damaged or cracked.
5. good volume toughness, so that avoid volume to break, breaking in the time of especially in the middle of being cut to.
U.S. Pat 6,261,673 disclose a kind of carbide chip of band coating, and it is applicable to the grooving or the cut-out of steel, for example steel or stainless steel pipe or bar.This blade is characterised in that, the carbide alloy substrate of WC-Co base and relative thin coating, and wherein the carbide alloy substrate of WC-Co base has the Co bonding phase of high W alloy, and relatively thin coating comprises the TiC with columnar grain
xN
yO
zInternal layer, then be fine grain k-Al
2O
3Layer, and the top layer of TiN.
U.S. Pat 6,342,291 disclose a kind of cutting tool that steel is carried out the band coating of grooving or cut-out that is useful on, for example to the grooving and the cut-out of steel or stainless steel pipe or bar.This blade is characterised in that, the carbide alloy substrate of WC-Co base and the coating of hard wear resistant, and wherein the carbide alloy substrate of WC-Co base has the Co bonding phase of high W alloy, and the coating of hard wear resistant comprises the (Ti with the Ti/Al ratio that repeats to change
xAl
1-y) sandwich construction of sublayer of N component.
EP-A-1798310 discloses a kind of being used for the superalloy that comprises substrate and coating and stainless steel has been cut off cutting tip with grooving.Substrate comprises the NbC of TaC, 0.10-0.50wt-% of Co, 0.15-0.60wt-% of 5-7wt-% and the WC of surplus.Coating is by even Al
xTi
1-xThe N layer is formed, and wherein x=0.6-0.8, and thickness is 1-3.8 μ m.
Summary of the invention
The purpose of this invention is to provide a kind of cutting tool insert, be applicable under wet condition to steel, stainless steel and HRSA cut off, grooving and cutting thread.
Another object of the present invention provides a kind of cutting tool insert, and it has the opposing plastic deformation and the wearability of raising.
Another purpose of the present invention provides a kind of cutting tool, wherein under the situation of the edge line toughness that infringement reduces, does not obtain the opposing plastic deformation that improves.
Have now found that; multilayer (Ti, Al) the fine grain substrate of the PVD coating of N and Gao Ge combine provide under wet condition to steel, stainless steel and HRSA cut off, good plasticity_resistant deformation when grooving and cutting thread, good wearability and enough edge line toughness.
Thereby, the present invention relates to a kind of cutting tool insert of band coating, it comprises carbide alloy substrate and coating.The carbide alloy substrate comprises, preferably is made up of following: WC, the Co of 7.5-10.5wt-% is preferably the Co of 8.0-10.0wt-%, most preferably is the Co of 8.5-9.5wt-%, and the Cr of 0.7-1.1wt-%, is preferably the Cr of 0.8-1.0%wt-%.Carbide alloy also comprise 100-300ppm Ti, be preferably 150-275ppm Ti, most preferably be the Ti of 200-260ppm.In another embodiment, the part of Ti replaces with Ta, and the weight ratio of Ti/Ta 〉=0.8, be preferably≤1.7, most preferably be 1.2-1.5.
Bonding and W and Cr alloying, the magnetic behavior of this influence bonding, and be related to the CW_Cr rate value thus, the CW_Cr ratio is defined as follows:
CW_Cr＝(magnetic-％Co+1.13＊wt-％Cr)/wt-％Co
Wherein magnetic-%Co is the percentage by weight of magnetic Co, and wt-%Cr is the percentage by weight of Cr in carbide alloy, and wt-%Co is the percentage by weight of Co in carbide alloy.
Have been found that the CW_Cr ratio that has 0.77-0.97 when carbide alloy, be preferably 0.80-0.94, most preferably be 0.82-0.92, and the coercivity of 21-27kA/m, when being preferably 22-26kA/m, realize the cutting ability that improves.
Sintered body also can comprise separating out of a small amount of precipitated phase in addition or a plurality of precipitated phases, as η phase, MX or M
7X
3, M
3X
2, M=(Ti+Ta+Co+Cr+W) wherein, and X=C or N, and the volume fraction that tolerable reaches is 0.5vol-% to the maximum, and do not have adverse effect.
Coating comprises having different al/two (Ti, Al) N layers of Ti ratio.Internal layer has the Al/Ti ratio than outer floor height.Internal layer is by Al
yTi
1-yThe N layer is formed, and wherein y=0.4-0.67 is preferably 0.45-0.60.The coating layer thickness of internal layer is 0.3-2.5 μ m, is preferably 0.5-2.0 μ m.In a preferred implementation, internal layer is an aperiodicity thin layer coating, and it is by Al
zTi
1-zN and Al
vTi
1-vThe alternating layer of N is formed, and wherein z=0.55-0.70 is preferably z=0.6-0.67, and v=0.35-0.53, is preferably v=0.40-0.50.The coating layer thickness of the layer that each is independent is 0.1-20nm, is preferably 1-10nm.Outer by Al
wTi
1-wThe N layer is formed, and wherein w=0.15-0.35 is preferably w=0.20-0.30.Outer coating thickness is 0.5-5.0 μ m, is preferably 1.0-4.0 μ m.In a preferred implementation, outer by having Al
mTi
1-mN, Al
nTi
1-nN and Al
kTi
1-kThe aperiodicity thin layer coating of the alternating layer of N is formed, and wherein m=0-0.2 is preferably m=0-0.1, and n=0.35-0.53 is preferably n=0.40-0.50, and k=0.55-0.70 is preferably k=0.6-0.67.The coating layer thickness of the layer that each is independent is 0.1-20nm, is preferably 1-10nm.The gross thickness of coating is 0.8-7.5 μ m, is preferably 1.5-6.0 μ m.The thickness of each layer is lower than cutting edge 0.2mm place and measures on the side.
In a preferred implementation, coating has the innermost layer adhesion layer of being made up of the TiN layer, and its thickness is 0.05-0.2 μ m, is preferably 0.1-0.2 μ m.
In one embodiment, coating has the TiN top layer, is used for the color purpose.The thickness of this TiN layer is 0.1-1 μ m, is preferably 0.1-0.3 μ m.
In another embodiment, coating has Al
pTi
1-pThe N top layer is used for the color purpose, wherein p=0.05-0.67.Al
pTi
1-pThe thickness of N layer is 0.2-1 μ m, is preferably 0.2-0.4 μ m.
The invention still further relates to a kind of manufacturing and comprise the method for the coated cutting tool insert of carbide alloy substrate and coating.The carbide alloy substrate adopts that conventional PM technique is milled, compacting and sintering manufacturing.The carbide alloy substrate comprises, preferably is made up of following: WC, the Co of 7.5-10.5wt-% is preferably the Co of 8.0-10.0wt-%, most preferably is the Co of 8.5-9.5wt-%, and the Cr of 0.7-1.1wt-%, is preferably the Cr of 0.8-1.0%wt-%.In one embodiment, carbide alloy also comprise 100-300ppm Ti, be preferably 150-275ppm Ti, most preferably be the Ti of 200-260ppm.In another embodiment, the part of Ti replaces with Ta, and the weight ratio of Ti/Ta 〉=0.8, be preferably≤1.7, most preferably be 1.2-1.5, with TaC, (Ta, W) C, TiC, (Ta, W) C and/or (Ti, Ta, W) C or these combination interpolation.1410 ℃ of following sintering are after 1 hour in a vacuum, and coercivity is 21-27kA/m, is preferably 22-26kA/m.
The CW_Cr ratio is 0.77-0.97, is preferably 0.80-0.94, most preferably is 0.82-0.92, and monitors by an amount of carbon black or W powder are joined in the mixture of powders.
After routine, after the sintering processes, deposit by two with different al/Ti ratio (Ti, Al) coatings of N layer composition with cathodic arc evaporation method or magnetron sputtering.Internal layer has the Al/Ti ratio than outer floor height.Internal layer is by Al
yTi
1-yThe N layer is formed, and wherein y=0.4-0.67 is preferably 0.45-0.60.The coating layer thickness of internal layer is 0.3-2.5 μ m, is preferably 0.5-2.0 μ m.In a preferred implementation, internal layer is an aperiodicity thin layer coating, and it is by Al
zTi
1-zN and Al
vTi
1-vThe alternating layer of N is formed, and wherein z=0.55-0.70 is preferably z=0.6-0.67, and v=0.35-0.53, is preferably v=0.40-0.50.The coating layer thickness of the layer that each is independent is 0.1-20nm, is preferably 1-10nm.Outer by Al
wTi
1-wThe N layer is formed, and wherein w=0.15-0.35 is preferably w=0.20-0.30.Outer coating thickness is 0.5-5.0 μ m, is preferably 1.0-4.0 μ m.In a preferred implementation, outer by having Al
mTi
1-mN, Al
nTi
1-nN and Al
kTi
1-kThe aperiodicity thin layer coating of the alternating layer of N is formed, and wherein m=0-0.2 is preferably m=0-0.1, and n=0.35-0.53 is preferably n=0.40-0.50, and k=0.55-0.70 is preferably k=0.6-0.67.The coating layer thickness of the layer that each is independent is 0.1-20nm, is preferably 1-10nm.The gross thickness of coating is 0.8-7.5 μ m, is preferably 1.5-6.0 μ m.
The invention still further relates to purposes according to above-mentioned blade, be used for cut-out, grooving and the cutting thread under wet condition to steel and stainless steel, cutting speed is 30-400m/ minute, and feed velocity is the 0.05-0.6mm/ commentaries on classics, and be used for cut-out, grooving and cutting thread to HRSA, cutting speed is 15-100m/ minute, and feed velocity is the 0.02-0.3mm/ commentaries on classics.
The specific embodiment
Embodiment 1 (the present invention)
A1. multilayer (Ti, Al) the N coating is deposited on the cutting tip of being made by carbide alloy by the cathodic arc evaporation method, wherein carbide alloy has the Co of following component: 9wt-%, the Cr of 0.9wt-%, the Ti of 230ppm and the WC of surplus, and coercivity is 23.6kA/m, it is corresponding to the crystallite dimension of average about 0.8 μ m, and 6.7 magnetic Co content, the CW_Cr ratio of its correspondence 0.95.This coating adopts utilizes the electric arc vapour deposition method of Ti and TiAl source metal to deposit.The TiN adhesion layer adopts the Ti source metal at Ar that mixes and N
2Deposit in the atmosphere.The coating layer thickness of TiN adhesion layer is 0.15 μ m.The second layer adopts by Al
0.67Ti
0.33And Al
0.50Ti
0.50The target material of alloy composition is at N
2Deposit in the atmosphere.The aperiodicity laminate structure obtains by 3 degree (fold) rotations at settling chamber's inner blade.The thickness of the second layer is 1.6 μ m.Average composition is Al
0.54Ti
0.46N, it is measured by SEM-EDS.The average thickness of each thin layer of the second layer is 8nm, and it is measured by transmission electron microscope (TEM).The 3rd layer of outside employing is by Ti, Al
0.67Ti
0.33And Al
0.50Ti
0.50The target material of alloy composition is at N
2Deposit in the atmosphere.The aperiodicity laminate structure obtains by 3 degree rotations at settling chamber's inner blade.The 3rd layer thickness is 2.6 μ m.The 3rd layer average composition is Al
0.24Ti
0.76N, it is measured by SEM-EDS.The average thickness of each thin layer of the 3rd layer is 11nm, and it is measured by TEM.The gross thickness of the coating that applies is 4.4 μ m.
A2. with A1 in identical being coated be deposited upon on the carbide alloy, the carbide alloy component is the Co of 9wt-%, the Cr of 0.9wt-%, the Ti of 130ppm, the Ta of 100ppm, and the WC of surplus.
Embodiment 2 (prior art)
The carbide alloy section groove blade of forming by the carbide alloy substrate, the carbide alloy substrate is by the Co of 10wt-%, the Cr of 0.39wt-%, and surplus WC composition, wherein coercivity is 20kA/m, and CW_Cr is 0.89, corresponding to the crystallite dimension of 0.9 μ m and the hardness of 1600HV3, this carbide alloy section groove blade is coated with the PVD of 4.4 μ m, and (this multilayer is by uniform Al for Ti, Al) N multilayer
0.5Ti
0.5N layer and have TiN and Al
0.5Ti
0.5The sequence layer of the thin layer of the alternating layer of N layer is formed.This sequence layer repeats 12 times.Uniform Al
0.5Ti
0.5The thickness of N layer is 0.1-0.2 μ m, and the thickness of thin layer is 0.1-0.2 μ m.In thin layer, TiN that each is independent or Al
0.5Ti
0.5The thickness of N layer is 0.1-20nm.The average composition of this multilayer is determined as Al with SEM-EDS
0.2Ti
0.8N.
Embodiment 3
Blade A1 and B are tested in the grooving of quenched and tempered steel member made and turning.A grooving that 2mm is dark is cut in being operating as from external diameter 46mm at first, along bar turning 20mm, returns grooving and turning afterwards then, and continuing up to diameter like this is 10.2mm.
Operation: grooving and turning
Material: AISI 4340 (SS 2541-03)
Blade model: N123G2-0300-0003-TF
Cutting speed: 220m/ minute
Grooving feed velocity: 0.15mm/ changes
Turning feed velocity: 0.13mm/ changes
Each parts time spent: 28 seconds
Use cooling fluid
The result: the number of components of finishing, and cutter life, with minute the expression:
Grade A1 (the present invention): 86.7 parts, cutting in 40.5 minutes
Grade B (prior art): 46.7 parts, cutting in 21.8 minutes
Embodiment 4
Blade A1 and B are tested in the grooving of quenched and tempered steel.The outer diameter D of grooving
oBe 178mm, inside diameter D
iBe 172mm, and the width of grooving is 3mm.
Operation: grooving
Material: AISI 4340 (SS 2541-03)
Blade model: N123G2-0300-0003-TF
Cutting speed: 210m/ minute
Grooving feed velocity: 0.12mm/ changes
Cutting depth: 3mm
The time of each circulation: 3 minutes (1 circulation is 30 grooves)
Use cooling fluid
The result: with predetermined wear of the tool flank is the cutter life of 0.2mm.
Grade A1 carries out 21.3 circulations, and the cutting time is 63.9 minutes altogether.
The cutter life of blade B is 11.3 circulations, and finishes in 33.9 minutes.
Embodiment 5
Blade A1 and B are tested in the grooving of austenite stainless steel and turning.A grooving that 2mm is dark is cut in being operating as from external diameter 45mm at first, along bar turning 20mm, returns grooving and turning afterwards then, and continuing up to diameter like this is 10.2mm.
Operation: grooving and turning
Material: SANMAC 316L
Blade model: N123H2-0400-0008-TM
Cutting speed: 180m/ minute
Grooving feed velocity: 0.15mm/ changes
Turning feed velocity: 0.15mm/ changes
Each parts time spent: 27 seconds
Use cooling fluid
The result: the number of components of finishing, and cutter life, with minute the expression:
Grade A1 (the present invention): 70 parts, cutting in 31.5 minutes
Grade B (prior art): 51 parts, cutting in 23.3 minutes
Embodiment 6
Blade A1 and B are tested in the grooving to steel, wherein D
oBe 159mm, D
iBe 140mm, and width is 9.5mm.
Operation: grooving
Material: SN2039
Blade model: N123L2-0800-RM
Cutting speed: 150-130m/ minute
Feed velocity: 0.3mm/ changes
Each parts time spent: 90 seconds
Use cooling fluid
The result: the number of components of finishing, and cutter life, with minute the expression:
Grade A1 (the present invention): 71 parts, cutting in 106.5 minutes
Grade B (prior art): 34 parts, cutting in 51 minutes
Embodiment 7
Blade A1 and B are tested in the internal threading to steel C40, and wherein this internal thread is M24 * 1.5, length 24mm, and steel C40 hardness is 190-250HB.
Operation: internal threading
Material: C40
Blade model: R166.OL-16MM01-150
Cutting speed: 115m/ minute
Number of operations: each screw thread 7 times
Use cooling fluid
Result: the quantity of screw thread:
Grade A1 (the present invention): 580 screw threads
Grade B (prior art): 430 screw threads
Embodiment 8
Blade A2 and B are tested in the grooving to steel, wherein D
oFor 177.9mm to D
iBe 165.8mm.The width of grooving is 12.45mm.
Operation: grooving
Material: 16MnCr5
Blade model: N123H2-0400-0004-TF
Cutting speed: 255m/ minute
Feed velocity: 0.15mm/ changes
Each parts time spent: 17 seconds
Use cooling fluid
Result: with the number of components of predetermined surface smoothness, and cutter life, with a minute expression:
Grade A2 (the present invention): 107 parts, cutting in 30.3 minutes
Grade B (prior art): 75 parts, cutting in 21.3 minutes
Embodiment 9
Blade A2 and B are tested in cutting off steel pole, wherein cut off from D
oFor 20mm to the center.
Operation: cut off
Material: 42CrMo4, hardness 320HB
Blade model: N123G2-0300-0002-CM
Cutting speed: 100-0m/ minute
Feed velocity: 0.15mm/ changes, and is 3mm from diameter, and f=0.05mm/ changes
Each parts time spent: 4 seconds
Use cooling fluid
The result: number of components, and cutter life, with minute the expression:
Grade A2 (the present invention): 6200 parts, cutting in 413 minutes
Grade B (prior art): 3600 parts, cutting in 240 minutes
Embodiment 10
Blade A2 and B are tested in cutting off steel pipe, wherein cut off from D
oFor 36mm is 17mm to Di.
Operation: cut off pipe
Material: 42CD4, hardness 300HB
Blade model: N123G2-0300-0003-CR
Cutting speed: 150m/ minute
Feed velocity: 0.1mm/ changes
Each parts time spent: 3.2 seconds
Use cooling fluid
The result: number of components, and cutter life, with minute the expression:
Grade A2 (the present invention): 1159 parts, cutting in 61.8 minutes
Grade B (prior art): 754 parts, cutting in 40.2 minutes
Embodiment 11
Blade A2 and B are tested in cutting off steel pipe, wherein cut off from D
oFor 120mm is 115mm to Di.
Operation: cut off pipe
Material: SAE1010, hardness 110HB
Blade model: N123G2-0300-0003-CR
Cutting speed: 226m/ minute-216m/ minute
Feed velocity: 0.15mm/ changes
Each parts time spent: 1.67 seconds
Use cooling fluid
The result: number of components, and cutter life, with minute the expression:
Grade A2 (the present invention): 700 parts, cutting in 19 minutes
Grade B (prior art): 580 parts, cutting in 16 minutes
Embodiment 12
The test in cutting off Inconel (inconel) pin of 20mm with blade A2 and B.
Operation: keeper
Material: inconel 718
Blade model: N123G2-0300-0002-CM
Cutting speed: 20m/ minute
Feed velocity: 0.07mm/ commentaries on classics-0.03mm/ changes
Use cooling fluid
Result: number of components:
Grade A2 (the present invention): 100 pins
Grade B (prior art): 85 pins
Claims (26)
1. be used for to steel and stainless steel cut off, the cutting tool insert of grooving and cutting thread, comprise substrate and coating, it is characterized in that:
Described substrate comprises WC, the Co of 7.5-10.5wt-%, and the Cr of 0.7-1.1wt-%, the Ti of 100-300ppm, wherein the CW_Cr ratio is 0.77-0.97, and coercivity is 21-27kA/m, described CW_Cr ratio is defined as follows:
CW_Cr＝(magnetic-％Co+1.13＊wt-％Cr)/wt-％Co，
Wherein magnetic-%Co is the percentage by weight of magnetic Co, and wt-%Cr is the percentage by weight of Cr in carbide alloy, and wt-%Co is the percentage by weight of Co in carbide alloy, and,
Described coating comprises two (Ti, Al) N layers: internal layer Al of different al/Ti ratio
yTi
1-yN and outer Al
wTi
1-wN, y=0.4-0.67 wherein, w=0.15-0.35, described in layer thickness be 0.3-2.5 μ m, described outer layer thickness is 0.5-5.0 μ m.
2. cutting tool insert according to claim 1 is characterized in that: described substrate comprises the Co of 8.5-9.5wt-%.
3. according to each described cutting tool insert among the claim 1-2, it is characterized in that: described substrate comprises the Cr of 0.8-1.0wt-%.
4. according to each described cutting tool insert among the claim 1-3, it is characterized in that: described substrate comprises the Ti of 200-260ppm.
5. according to each described cutting tool insert among the claim 1-4, it is characterized in that: described substrate has the CW_Cr ratio of 0.82-0.92 and the coercivity of 22-26kA/m.
6. according to each described cutting tool insert among the claim 1-5, it is characterized in that: y=0.45-0.60, and w=0.20-0.30.
7. according to each described cutting tool insert among the claim 1-6, it is characterized in that: described internal layer Al
yTi
1-yThe thickness of N is 0.5-2.0 μ m, described outer Al
wTi
1-wThe thickness of N is 1.0-4.0 μ m.
8. according to each described cutting tool insert among the claim 1-7, it is characterized in that: the Ti in the described substrate partly replaces with Ta, reaches weight ratio 〉=0.8 of Ti/Ta, but≤1.7.
9. according to each described cutting tool insert among the claim 1-8, it is characterized in that:
Described internal layer is by Al
zTi
1-zN and Al
vTi
1-vThe aperiodicity thin layer coating that the alternating layer of N is formed, z=0.55-0.70 wherein, and v=0.35-0.53, and the thickness of each independent layer is 0.1-20nm, and/or,
Described skin is by having Al
mTi
1-mN, Al
nTi
1-nN and Al
kTi
1-kThe aperiodicity thin layer coating of the alternating layer of N is formed, m=0-0.2 wherein, and n=0.35-0.53, k=0.55-0.70, and the thickness of each independent layer is 0.1-20nm.
10. cutting tool insert according to claim 9 is characterized in that: z=0.6-0.67, and v=0.40-0.50.
11. according to each described cutting tool insert among the claim 9-10, it is characterized in that: m=0-0.1, n=0.40-0.50, and k=0.6-0.67.
12. according to each described cutting tool insert among the claim 9-11, it is characterized in that: described internal layer and described skin all are made up of aperiodicity thin layer coating, wherein the thickness of each independent layer is 1-10nm.
13. according to each described cutting tool insert among the claim 1-114, it is characterized in that: the innermost layer adhesion layer is TiN, its thickness is 0.05-0.2 μ m.
14. make the method for the cutting tool insert of band coating, described blade comprises carbide alloy substrate and coating, it is characterized in that, said method comprising the steps of:
Substrate is provided, it adopts that conventional PM technique is milled, compacting and sintering form, described substrate comprises WC, the Co of 7.5-10.5wt-%, the Cr of 0.7-1.1wt-% and the Ti of 100-300ppm, wherein the CW_Cr ratio is 0.77-0.97, and coercivity is 21-27kA/m, and described CW_Cr ratio is defined as follows:
CW_Cr＝(magnetic-％Co+1.13＊wt-％Cr)/wt-％Co，
Wherein magnetic-%Co is the percentage by weight of magnetic Co, and wt-%Cr is the percentage by weight of Cr in carbide alloy, and wt-%Co is the percentage by weight of Co in carbide alloy, and,
Adopt cathodic arc evaporation method or magnetron sputtering method deposited coatings, described coating comprises having different al/two (Ti, Al) N layers: internal layer Al of Ti ratio
yTi
1-yN and outer Al
wTi
1-wN, y=0.4-0.67 wherein, w=0.15-0.35, described in layer thickness be 0.3-2.5 μ m, described outer layer thickness is 0.5-5.0 μ m.
15. method according to claim 14 is characterized in that: described substrate comprises the Co of 8.5-9.5wt-%.
16. according to each described method among the claim 14-15, it is characterized in that: described substrate comprises the Cr of 0.8-1.0wt-%.
17. according to each described method among the claim 14-16, it is characterized in that: described substrate comprises the Ti of 200-260ppm.
18. according to each described method among the claim 14-17, it is characterized in that: described substrate has the CW_Cr ratio of 0.82-0.92 and the coercivity of 22-26kA/m.
19. according to each described method among the claim 14-18, it is characterized in that: for described internal layer Al
yTi
1-yN, y=0.45-0.60, and for described outer Al
wTi
1-wN, w=0.20-0.30.
20. according to each described method among the claim 14-19, it is characterized in that: described internal layer Al
yTi
1-yThe thickness of N is 0.5-2.0 μ m, described outer Al
wTi
1-wThe thickness of N is 1.0-4.0 μ m.
21. according to each described method among the claim 14-20, it is characterized in that: the Ti in the described substrate partly replaces with Ta, reaches weight ratio 〉=0.8 of Ti/Ta, but≤1.7.
22., it is characterized in that according to each described method among the claim 14-21:
Described internal layer is by Al
zTi
1-zN and Al
vTi
1-vThe aperiodicity thin layer coating that the alternating layer of N is formed, z=0.55-0.70 wherein, and v=0.35-0.53, and the thickness of each independent layer is 0.1-20nm, and/or,
Described skin is by having Al
mTi
1-mN, Al
nTi
1-nN and Al
kTi
1-kThe aperiodicity thin layer coating of the alternating layer of N is formed, m=0-0.2 wherein, and n=0.35-0.53, k=0.55-0.70, and the thickness of each independent layer is 0.1-20nm.
23. method according to claim 22 is characterized in that: z=0.6-0.67, and v=0.40-0.50.
24. according to each described method among the claim 21-22, it is characterized in that: m=0-0.1, n=0.40-0.50, and k=0.6-0.67.
25. according to the purposes of each described blade among the claim 1-13, be used under wet condition to steel and stainless steel cut off, grooving and cutting thread, cutting speed is 30-400m/ minute, and feed velocity to be 0.05-0.6mm/ change.
26. according to the purposes of each described blade among the claim 1-13, be used under wet condition to HRSA cut off, grooving and cutting thread, cutting speed is 15-100m/ minute, and feed velocity to be 0.02-0.3mm/ change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101095569A CN101596611A (en) | 2008-06-02 | 2008-06-02 | Be used to cut off, the carbide chip of grooving and cutting thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008101095569A CN101596611A (en) | 2008-06-02 | 2008-06-02 | Be used to cut off, the carbide chip of grooving and cutting thread |
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|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102985583A (en) * | 2010-06-07 | 2013-03-20 | 山特维克知识产权股份有限公司 | Coated cutting tool |
| CN104145041A (en) * | 2012-02-29 | 2014-11-12 | 山特维克知识产权股份有限公司 | Coated cutting tool |
| CN104145041B (en) * | 2012-02-29 | 2016-11-30 | 山特维克知识产权股份有限公司 | Coated cutting tool |
-
2008
- 2008-06-02 CN CNA2008101095569A patent/CN101596611A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102985583A (en) * | 2010-06-07 | 2013-03-20 | 山特维克知识产权股份有限公司 | Coated cutting tool |
| CN102985583B (en) * | 2010-06-07 | 2015-04-08 | 山特维克知识产权股份有限公司 | Coated cutting tool |
| CN104145041A (en) * | 2012-02-29 | 2014-11-12 | 山特维克知识产权股份有限公司 | Coated cutting tool |
| US9334561B2 (en) | 2012-02-29 | 2016-05-10 | Sandvik Intellectual Property Ab | Coated cutting tool |
| EP2820166B1 (en) * | 2012-02-29 | 2016-09-14 | Sandvik Intellectual Property AB | Coated cutting tool |
| CN104145041B (en) * | 2012-02-29 | 2016-11-30 | 山特维克知识产权股份有限公司 | Coated cutting tool |
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