CN109202144A - A kind of multiple-cutting-edge roughing tool - Google Patents
A kind of multiple-cutting-edge roughing tool Download PDFInfo
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- CN109202144A CN109202144A CN201811116403.7A CN201811116403A CN109202144A CN 109202144 A CN109202144 A CN 109202144A CN 201811116403 A CN201811116403 A CN 201811116403A CN 109202144 A CN109202144 A CN 109202144A
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- cutting
- edge
- roughing tool
- hard alloy
- knife handle
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- 238000005520 cutting process Methods 0.000 claims abstract description 67
- 239000000956 alloy Substances 0.000 claims abstract description 57
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 57
- 229910003460 diamond Inorganic materials 0.000 claims abstract description 54
- 239000010432 diamond Substances 0.000 claims abstract description 54
- 238000003466 welding Methods 0.000 claims description 14
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims description 12
- 239000010941 cobalt Substances 0.000 claims description 8
- 229910017052 cobalt Inorganic materials 0.000 claims description 8
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 5
- 239000010931 gold Substances 0.000 claims description 5
- 229910052737 gold Inorganic materials 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 3
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- 239000010937 tungsten Substances 0.000 claims description 2
- 239000011435 rock Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 12
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000576 coating method Methods 0.000 description 5
- 239000013078 crystal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 208000013668 Facial cleft Diseases 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 238000003776 cleavage reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 230000007017 scission Effects 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000009760 electrical discharge machining Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
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- 238000000227 grinding Methods 0.000 description 1
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- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 description 1
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- 229910003468 tantalcarbide Inorganic materials 0.000 description 1
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
- B23C5/10—Shank-type cutters, i.e. with an integral shaft
- B23C5/1081—Shank-type cutters, i.e. with an integral shaft with permanently fixed cutting inserts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
- B23C2210/0485—Helix angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2226/00—Materials of tools or workpieces not comprising a metal
- B23C2226/31—Diamond
- B23C2226/315—Diamond polycrystalline [PCD]
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Knives (AREA)
Abstract
The invention discloses a kind of multiple-cutting-edge roughing tools, including knife handle and it is fixedly connected on the cutter head on the knife handle head, the cutter head includes the polycrystalline diamond layer for being formed by hard alloy layer by hard alloy and being fixedly connected on the hard alloy layer, the polycrystalline diamond layer has a plurality of cutting edge, and the knife handle is formed by hard alloy.The present invention is since polycrystalline diamond layer has a plurality of cutting edge, so that the multiple-cutting-edge roughing tool is when carrying out cutwork, the cutting output of each cutting edge is smaller, and cutting output is small will to make abrasion be controlled, to finally make the service life of this kind of cutter elongated.Meanwhile the multiple-cutting-edge roughing tool for having a plurality of cutting edge can also reduce the waste of material, improves processing efficiency and ensure the quality of workpiece.
Description
Technical field
The present invention relates to technical fields of mechanical processing, and in particular to a kind of multiple-cutting-edge roughing tool.
Background technique
Diamond cutter have extreme hardness and wearability, high heat conductance, low thermal coefficient of expansion, low-friction coefficient, with it is non-
The features such as ferrous metal affinity is small makes it obtain very high machining accuracy and processing efficiency in high-speed cutting, is based on this Buddha's warrior attendant
Stone cutter using more and more extensive.
The processing characteristics of diamond cutter are determined by the crystal structure of diamond, each in diamond crystal
A carbon atom and four adjacent carbon atoms form covalent bonds, are spatially in positive tetrahedron structure, between the carbon atom of this structure
Binding force is high, is macroscopically showing high hardness.
Currently, diamond cutter mainly has single-crystal diamond (MCD) cutter, polycrystalline diamond (PCD) cutter and diamond
Coated cutting tool.Due to the characteristic of diamond lattic structure, the directionality of performance is very strong, and single-crystal diamond is easily along its cleavage facial cleft；
Polycrystalline diamond is formed by the different fine diamond of orientation is grained sintered, is shown as isotropy, is not easy along its cleavage facial cleft
It opens；Diamond-coated tools also can get isotropic diamond coatings, so being not easy along it by controlling depositing operation
Cleavage facial cleft.
In addition, polycrystal diamond cutter compares with diamond-coated tools, there are diamond coatings and hard to close by the latter
Gold substrate binding force is weak, between coating and substrate difference of thermal expansion coefficients it is larger and the problems such as generate internal stress, diamond coatings knife
In high-speed milling disbonding easily occurs for tool, leads to coating failure.Although as the former since adhesive, hardness is added
It is lower than diamond-coated tools with wearability, but it makes since there is no the serious binding force problem of diamond-coated tools
With more extensive compared with the former.
For polycrystal diamond cutter, still has the characteristics that high rigidity, therefore this kind of cutter in the prior art
It is limited to the factors such as manufacturing process and often only has single-blade, twolip perhaps four swords and either single-blade, twolip or four swords, adopts
With the mode of weld tabs, i.e., polycrystalline diamond material is welded on blade, which makes as cutting
With.This kind of polycrystal diamond cutter is in processing, due to so that the cutting output of each blade is big, cutting with less blade
Amount will cause greatly biggish abrasion, to finally make the service life of this kind of cutter shorter, often polish ten~20
Workpiece, it is necessary to replace cutter, cause the waste of material, simultaneously because blade is less, easily cause workpiece surface after processing
Roughness is larger, causes the problem that workpiece quality is low.In addition, less blade will make processing efficiency be restricted.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, the present invention needs to provide a kind of multiple-cutting-edge roughing tool, which has more cutting
Sword, improving cutting-tool's used life, the waste for reducing material, improving processing efficiency and ensuring the quality of workpiece.
Multiple-cutting-edge roughing tool according to embodiments of the present invention, including knife handle and it is fixedly connected on the knife handle head
Cutter head, the cutter head includes being formed by hard alloy layer by hard alloy and being fixedly connected on the hard alloy layer
Polycrystalline diamond layer, the polycrystalline diamond layer has a plurality of cutting edge, and the knife handle formed by hard alloy.
As the further optinal plan of the multiple-cutting-edge roughing tool, the hard alloy is the conjunction of tungsten carbide-base hard
Gold.
As the further optinal plan of the multiple-cutting-edge roughing tool, cobalt in the tungsten carbide base carbide alloy
Mass percent is no more than 12%, and grain size is no more than 0.4 μm, and hardness is HRA92~93.
As the further optinal plan of the multiple-cutting-edge roughing tool, the polycrystalline diamond layer is closed with the hard
Layer gold is that substrate is sintered.
As the further optinal plan of the multiple-cutting-edge roughing tool, the knife handle passes through with the hard alloy layer
Welding achieves a fixed connection.
As the further optinal plan of the multiple-cutting-edge roughing tool, the polycrystalline diamond has eight cutting edges.
As the further optinal plan of the multiple-cutting-edge roughing tool, the polycrystalline diamond has 12 cuttings
Sword.
As the further optinal plan of the multiple-cutting-edge roughing tool, the front of the cutting edge is inclined smooth
Face, the back side of the cutting edge be compared with the more inclined arcwall face in front, the back side of a cutting edge with it is another
The front of a adjacent cutting edge forms chip space.
As the further optinal plan of the multiple-cutting-edge roughing tool, the bottom of the chip space is smooth smooth
Face.
As the further optinal plan of the multiple-cutting-edge roughing tool, the cutting edge includes straightway and tilting section,
The outer wall of the straightway is concordant with the outer wall of the knife handle, and the tilting section is connected with the straightway, and towards the knife
The axial direction of handle is obliquely installed, and the chip space extends to from the end of the cutter head along the tilting section described
The tail portion of straightway, the chip space include extended remittance bits section corresponding with the tilting section and with the straightway pair
The chip ejection segment thereupon that should be extended.
Beneficial effects of the present invention:
According to the multiple-cutting-edge roughing tool in above embodiments, since polycrystalline diamond layer has a plurality of cutting edge, so that
For the multiple-cutting-edge roughing tool when carrying out cutwork, the cutting output of each cutting edge is smaller, and cutting output is small will to wear
It is controlled, to finally make the service life of this kind of cutter elongated.Meanwhile having the multiple-cutting-edge roughing tool of a plurality of cutting edge
The waste of material can also be reduced, processing efficiency is improved and ensures the quality of workpiece.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment
Attached drawing is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 shows the composition figure for implementing provided multiple-cutting-edge roughing tool according to the present invention；
Fig. 2 shows a kind of perspective views of multiple-cutting-edge roughing tool provided by according to embodiments of the present invention one；
Fig. 3 shows the partial enlarged view of the part A in Fig. 2；
Fig. 4 show according to embodiments of the present invention one provided by a kind of top view of multiple-cutting-edge roughing tool；
Fig. 5 show according to embodiments of the present invention two provided by a kind of perspective view of multiple-cutting-edge roughing tool；
Fig. 6 shows the partial enlarged view of the part B in Fig. 5；
Fig. 7 show according to embodiments of the present invention two provided by a kind of top view of multiple-cutting-edge roughing tool；
Fig. 8 is shown implements a kind of provided manufacturing method flow chart of multiple-cutting-edge roughing tool according to the present invention.
Main element symbol description:
100- knife handle；200- cutter head；210- hard alloy layer；220- polycrystalline diamond layer；221- cutting edge；222- row
Consider slot to be worth doing；The front 2211-；The back side 2212-；2213- straightway；2214- tilting section；2221-, which converges, considers section to be worth doing；2222- chip ejection segment thereupon.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to
The embodiment of attached drawing description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning
Or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.
In addition, term " first ", " second " are used for description purposes only, it is not understood to indicate or imply relatively important
Property or implicitly indicate the quantity of indicated technical characteristic." first " is defined as a result, the feature of " second " can be expressed
Or implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or two
More than, unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation "
Equal terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be machine
Tool connection, is also possible to be electrically connected；It can be directly connected, two members can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside part.It for the ordinary skill in the art, can be according to tool
Body situation understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature
But fisrt feature is directly above or diagonally above the second feature above the second feature " above ", " above " and " above ", or only table
Show that first feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
Fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
It please refers to Fig. 1-7, in embodiments of the present invention, provides a kind of multiple-cutting-edge roughing tool, the multiple-cutting-edge roughing
Cutter is for the roughing to workpiece.The multiple-cutting-edge roughing tool includes knife handle 100 and is fixedly connected on 100 head of knife handle
Cutter head 200, cutter head 200 include being formed by hard alloy layer 210 by hard alloy and being fixedly connected on hard alloy layer 210
On polycrystalline diamond layer 220, polycrystalline diamond layer 220 has a plurality of cutting edge 221, and knife handle 100 formed by hard alloy.
In this way, since there is a plurality of cutting edge 221 due to polycrystalline diamond layer 220, so that the multiple-cutting-edge roughing tool exists
When carrying out cutwork, the cutting output of each cutting edge 221 is smaller, and cutting output is small will to make abrasion be controlled, thus most
Make the service life of this kind of cutter elongated eventually.Meanwhile the multiple-cutting-edge roughing tool for having a plurality of cutting edge 221 can also reduce material
The waste of material improves processing efficiency and ensures the quality of workpiece.
Below with reference to specific embodiment, the invention will be further described.
Embodiment one
The present embodiment one provides a kind of multiple-cutting-edge roughing tool, for carrying out roughing to workpiece.
Fig. 1-4 is please referred to, the polycrystalline diamond layer 220 of the multiple-cutting-edge roughing tool has eight cutting edges 221.
In the present embodiment, hard alloy used in hard alloy layer 210 and knife handle 100 can ensure entire cutter
With enough intensity, to guarantee cutter is long-term, stable use.
Hard alloy has a series of excellent performances such as hardness is high, wear-resisting, intensity and toughness are preferable, heat-resisting, corrosion-resistant,
Especially its high rigidity and wearability, even if 500 DEG C at a temperature of be held essentially constant, still have very at 1000 DEG C
High hardness.Hard alloy refers to the sintered combined material at least containing a kind of metal carbides composition.Tungsten carbide, cobalt carbide,
Niobium carbide, titanium carbide, tantalum carbide are the common ingredients of wolfram steel.The crystallite dimension of carbide component (or phase) is usually in 0.2-10
Between micron, carbide grain is combined together using metal adhesive.Binder typically refers to metallic cobalt (Co), but to one
A little special purposes, nickel (Ni), iron (Fe) or other metals and alloy can also be used.
In the present embodiment, above-mentioned hard alloy selects tungsten carbide base carbide alloy, and in tungsten carbide base carbide alloy
Cobalt mass percent be no more than 12%, grain size be no more than 0.4 μm, hardness HRA92-93.
It is appreciated that hardness is bigger, wear-resisting in general, tungsten carbide crystal grain degree is smaller when cobalt content is identical
Property is better, but bending strength, toughness relative reduction.In addition, cobalt content is bigger when other conditions are constant, the toughness of material is got over
It is good, but hardness relative reduction.Therefore specifically how to select material that should depend on the circumstances.
For example, in certain embodiments, the quality percentage amounts of the cobalt in above-mentioned tungsten carbide base carbide alloy are 12%, brilliant
Granularity is 0.4 μm, hardness HRA92.5, density 14.10g/cm3, bending strength 4200N/mm2.Involved by hereinafter
Tungsten carbide base carbide alloy can be referred to by taking this specific tungsten carbide base carbide alloy as an example.
Certainly, in other embodiments, it also can choose other types of hard alloy.
In the present embodiment, polycrystalline diamond layer 220 is sintered with hard alloy layer 210 for substrate, and knife handle 100
It is achieved a fixed connection with hard alloy layer 210 by welding.
When hard alloy selects aforementioned tungsten carbide base carbide alloy, when being welded, hard alloy layer 210 and knife
The welding of handle 100 is the butt welding of tungsten carbide base carbide alloy and tungsten carbide base carbide alloy, and deformation quantity is more closely, welding is stablized
Property is good.
Incorporated by reference to reference Fig. 2-3, in the present embodiment, the front 2211 of cutting edge 221 is inclined burnishing surface, cutting
The back side 2212 of sword 221 be compared with positive 2211 more inclined arcwall faces, the back side 2212 of a cutting edge 221 with it is another
The front 2211 of a adjacent cutting edge 221 forms chip space 222.
In this way when carrying out cutwork, the front 2211 of cutting edge 221 is applied to workpiece, guarantees the suitable of cutwork
Benefit carries out, and cutwork of the back side 2212 of arc then for front 2211 provides strong support, prevents cutting edge 221
It is squeezed and deforms, be able to extend cutting-tool's used life.
In addition, the appearance of chip space 222 can be increased by the chip space 222 that the back side 2212 and front 2211 of arc are formed
It considers space to be worth doing, provides basis for more smoothly chip removal work.
Please continue to refer to Fig. 2-3, in the present embodiment, the bottom of chip space 222 is smooth shiny surface.
In other words, the joint of two neighboring cutting edge 221 is smooth shiny surface, at this time when scrap is present in chip removal
When in slot 222, scrap is enabled to be discharged along smooth shiny surface.
When cutting depth is shallower, the end of cutting edge 221 is applied to workpiece, and cutting edge 221 is in cutting at this time, in advance
The chip space 222 stayed is sufficiently large, and scrap will not form extruding in chip space 222, therefore does not have to worry chip removal situation.
And when cutting depth is deeper, the volume of reserved chip space 222 is smaller at this time, and scrap is easy in chip space 222
It inside accumulates, certain difficulty is caused to chip removal.
In this regard, in certain embodiments, referring to FIG. 3, cutting edge 221 may include straightway 2213 and tilting section
2214, the outer wall of straightway 2213 is concordant with the outer wall of knife handle 100, and tilting section 2214 is connected with straightway 2213, and towards knife
The axial direction of handle 100 is obliquely installed, and chip space 222 extends to straight line along tilting section 2214 from the end of cutter head 200
The tail portion of section 2213, chip space 222 include extended remittance corresponding with tilting section 2214 consider to be worth doing section 2221 and with straightway 2213
Corresponding extended chip ejection segment thereupon 2222.
Thus, it is possible to make the end of chip space 222, i.e., chip space 222 corresponds to that straightway 2213 extends
Section, i.e. chip ejection segment thereupon 2222, being reserved in forever can guarantee that the scrap in remittance bits section 2221 is arranged from the chip ejection segment thereupon 2222 outside
Out.
In order to form a plurality of cutting edge 221 on polycrystalline diamond layer 220, it is more that the present embodiment additionally provides one kind simultaneously
The manufacturing method of sword roughing tool, referring to FIG. 8, method includes the following steps:
S100, hard alloy is taken to form hard alloy layer 210；
S200, sinter molding goes out polycrystalline diamond layer 220 on hard alloy layer 210；
S300, hard alloy is taken to form knife handle 100；
S400, knife handle 100 and hard alloy layer 210 are welded together；And
S500, galvano-cautery processing is carried out to polycrystalline diamond layer 220 to form cutting edge 221.
In this way, powerful discharge with explosion makes since galvano-cautery processing can generate the pulse discharging energy of high concentration
The metal melt of polycrystalline diamond layer 220, part diamond graphitization and oxidation, part diamond drop-off, so as to obtain
Greater number of cutting edge 221, it is good manufacturability, high-efficient.
In addition, by galvano-cautery processing it is also possible that cutting edge 221 has complicated contours profiles.
It should be noted that above-mentioned steps S500 is completed by spark eroding machine, the spark eroding machine into
One step may be selected to inspire confidence in your silent QXD250.
Using inspire confidence in you write from memory QXD250 carry out galvano-cautery processing can refer to following step:
S510, the outside diameter for being ground polycrystalline diamond layer 220；
S520, the profile that cutting edge 221 is processed with shaped electrode；
S530, chip space 222 is opened, until cutting edge 221 has predetermined tread；And
S540, machining center empty avoiding.
Abovementioned steps S540 primarily serves damping, and the effect of empty avoiding specifically can be by way of laser processing each
An aperture is made a call at the center that cutting edge 221 the is surrounded i.e. center of cutter head 200.
In some embodiments, in order to improve the weldering of the knife handle 100 in abovementioned steps S400 Yu hard alloy layer 210
Effect is connect, can also include step S350 between step S300 and step S400.At this point, above-mentioned manufacturing method can be with are as follows:
S100, hard alloy is taken to form hard alloy layer 210；
S200, sinter molding goes out polycrystalline diamond layer 220 on hard alloy layer 210；
S300, hard alloy is taken to form knife handle 100；
S350, to the welding surface sanding and polishing of knife handle 100 and hard alloy layer 210；
S400, knife handle 100 and hard alloy layer 210 are welded together；
S500, galvano-cautery processing is carried out to polycrystalline diamond layer 220 to form cutting edge 221.
In order to ensure sanding and polishing effect, sanding and polishing can be realized by surface grinding machine, and ensure the coarse of welding surface
Degree is no more than Ra0.4.
Further, step S400 can refer to following step progress:
S410, soldering paste is coated on the welding surface of knife handle 100 and hard alloy layer 210；
S420, knife handle 100 and hard alloy layer 210 are fixed using welding fixture；
S430, by knife handle 100 and hard alloy layer 210 as carrying out vacuum welding in vacuum brazing stove；And
S440, cooling.
It should be noted that the welding temperature of the vacuum welding in above-mentioned steps S430 is 600 DEG C~700 DEG C, when welding
A length of 2~3 hours.Cooling in step S440 uses natural air cooling mode.
So far, implementation by the above-mentioned manufacture method may make polycrystalline diamond layer 220 to have greater number of cutting
Sword 221, and cutting edge 221 is enabled to have increasingly complex profile simultaneously, the workpiece of more complexity can be processed.
In addition, it is necessary to, it is noted that when using above-mentioned manufacturing method, it should be noted that the parameters of cutting edge 221,
Such as helical angle, sword slot anterior angle, sword slot length, groove depth, anterior angle fathom and tread etc..
For the multiple-cutting-edge roughing tool in embodiment of the present invention, helical angle is 15~30 degree optional, before sword slot
Angle may be selected 7~13 degree, and sword slot length may be selected 3~7 millimeters, and groove depth may be selected 1~2 millimeter, and anterior angle fathoms optional
0.2~1 millimeter, tread may be selected 0.05~1 millimeter.
Certainly, when actually carrying out these parameter regulations, the case where being processed according to actual field etc., is adjusted and really
The specific value of these fixed parameters.
Embodiment two
The present embodiment two provides a kind of multiple-cutting-edge roughing tool, for carrying out roughing to workpiece.
Fig. 5-7 is please referred to, the polycrystalline diamond layer 220 of the multiple-cutting-edge roughing tool has 12 cutting edges 221.
Compared with embodiment one, the present embodiment has more cutting edges 221, and the multiple-cutting-edge in the present embodiment two is thick at this time
Process tool has effect more better than multiple-cutting-edge roughing tool in embodiment one.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, this field
Technical staff can carry out the feature of different embodiments or examples described in this specification and different embodiments or examples
Combination and combination.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of multiple-cutting-edge roughing tool, including knife handle and it is fixedly connected on the cutter head on the knife handle head, which is characterized in that institute
Stating cutter head includes the plycrystalline diamond Buddha's warrior attendant for being formed by hard alloy layer by hard alloy and being fixedly connected on the hard alloy layer
Rock layers, the polycrystalline diamond layer have a plurality of cutting edge, and the knife handle is formed by hard alloy.
2. multiple-cutting-edge roughing tool as described in claim 1, which is characterized in that the hard alloy is the conjunction of tungsten carbide-base hard
Gold.
3. multiple-cutting-edge roughing tool as claimed in claim 2, which is characterized in that cobalt in the tungsten carbide base carbide alloy
Mass percent is no more than 12%, and grain size is no more than 0.4 μm, and hardness is HRA92~93.
4. multiple-cutting-edge roughing tool as described in claim 1, which is characterized in that the polycrystalline diamond layer is closed with the hard
Layer gold is that substrate is sintered.
5. multiple-cutting-edge roughing tool as described in claim 1, which is characterized in that the knife handle passes through with the hard alloy layer
Welding achieves a fixed connection.
6. multiple-cutting-edge roughing tool as described in claim 1, which is characterized in that the polycrystalline diamond has eight cuttings
Sword.
7. multiple-cutting-edge roughing tool as described in claim 1, which is characterized in that the polycrystalline diamond has 12 cuttings
Sword.
8. such as multiple-cutting-edge roughing tool described in claim 5 or 6, which is characterized in that the front of the cutting edge is inclined
Burnishing surface, the back side of the cutting edge be compared with the more inclined arcwall face in front, the back side of a cutting edge and
The front of another adjacent cutting edge forms chip space.
9. multiple-cutting-edge roughing tool as claimed in claim 8, which is characterized in that the bottom of the chip space is smooth smooth
Face.
10. multiple-cutting-edge roughing tool as claimed in claim 8, which is characterized in that the cutting edge includes straightway and inclination
Section, the outer wall of the straightway is concordant with the outer wall of the knife handle, and the tilting section is connected with the straightway, and towards described
The axial direction of knife handle is obliquely installed, and the chip space extends to from the end of the cutter head along the tilting section described
The tail portion of straightway, the chip space include extended remittance bits section corresponding with the tilting section and corresponding with the straightway
Extended chip ejection segment thereupon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811116403.7A CN109202144A (en) | 2018-09-25 | 2018-09-25 | A kind of multiple-cutting-edge roughing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811116403.7A CN109202144A (en) | 2018-09-25 | 2018-09-25 | A kind of multiple-cutting-edge roughing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109202144A true CN109202144A (en) | 2019-01-15 |
Family
ID=64984887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811116403.7A Withdrawn CN109202144A (en) | 2018-09-25 | 2018-09-25 | A kind of multiple-cutting-edge roughing tool |
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| Country | Link |
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| CN (1) | CN109202144A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020063006A1 (en) * | 2018-09-25 | 2020-04-02 | 汇专科技集团股份有限公司 | Diamond cutting tool for hard-brittle difficult-to-machine material |
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