CN102189257A - Powder sintering forming method for cutting tool and cutting body thereof - Google Patents
Powder sintering forming method for cutting tool and cutting body thereof Download PDFInfo
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- CN102189257A CN102189257A CN2010101323793A CN201010132379A CN102189257A CN 102189257 A CN102189257 A CN 102189257A CN 2010101323793 A CN2010101323793 A CN 2010101323793A CN 201010132379 A CN201010132379 A CN 201010132379A CN 102189257 A CN102189257 A CN 102189257A
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Abstract
The invention relates to a powder sintering forming method for a cutting tool and a cutting body thereof, which comprises the following steps of: manufacturing a cutting body workpiece with the same shape as the cutting body of a drill, a micro drill or a spiral end mill; performing injection coating forming at the periphery and one end of the cutting body workpiece to obtain a thermoplastic plastic mold body; rotatably withdrawing a cutting body forming mold cavity of the plastic mold body from the other end of the cutting body workpiece; injecting cutter material powder and a mixed binder thereof into the cutting body forming mold cavity, and injecting metal powder and a mixed binder thereof into a handle body forming mold cavity of a forming mold to prepare a cutting body powder dense body connected with a handle body powder dense body; extracting, degreasing to separate the binder, and heating to remove the plastic mold body; and sintering the cutting body powder dense body and the handle body powder dense body at a high temperature to prepare the cutting tool integrating the cutter material powder sintering cutting body with the metal powder sintering handle body.
Description
Technical field
The present invention relates to a kind of cutting element forming method, particularly relate to the powder sintered forming method of cutting elements such as a kind of drill bit, microbit and spirality end mill(ing) cutter.
Background technology
Fast development along with electronic industry, making rapid progress of electronic product, printed circuit board (PCB) (Printed Circuit Board now, PCB) size is more and more littler, relative, operated implement required in the manufacturing process is also more and more accurate, it is more tiny than general drill bit wherein to be used for the drill bit that printed circuit board drilling uses, and this microbit that is used for that printed circuit board drilling uses is to belong to consumptive material, making this kind microbit usually produces in a large amount of modes, therefore if can simplify the manufacture method of microbit, must reduce the manufacturing cost of microbit.
Known microbit comprises a shank part and a drill body part, wherein the material of shank part is that stainless steel is made, its diameter is generally 3.2mm, the material of drill body part is that carbonization wolfram steel is made, its diameter is 1.42mm before grinding, and generally in the majority in the mode that heat is inserted as for the mode that drill body part combines with shank part, it is that shank part is heated that so-called heat is inserted, so that the shrinkage pool diameter of shank part front end becomes greatly because of heat expansion, the nose bar with drill body part inserts wherein again.In addition, it is to finish in cold slotting mode that part is also arranged, that is makes shank part and drill body part be compelled to pressing at normal temperatures to reach the purpose that combines with the principle of interference engagement.Yet no matter be that heat is inserted or cold slotting mode, the degree of depth that drill body part inserts shank part needs 5mm to 6mm at least, just can make and produce enough pull-out capacities between the two.
But the shank part of this kind microbit and drill body part must via metalworking machinery respectively cutting and grinding make shrinkage pool and relative nose bar so that labor intensive and time, increase manufacturing cost.Especially drill body part needs precision cutting to produce continuous helical shape cutting blade and flute and apex point in advance, can expend the tungsten carbide steel especially, increases human and material resources and cost relatively.Therefore to how to improve the problems referred to above and defective, be the direction of relevant dealer institute anxious desire research and development.
Summary of the invention
Main purpose of the present invention provides a kind of cutting element and the powder sintered forming method of cutting body thereof, it can be made into integration powder sintered cutting body, but one combining powder sintering handle body more, to improve cutting element precision machining and quality, being more suitable for a large amount of the manufacturing produces, and save manpower, time and tungsten carbide steel or alumina ceramic material consumption, reduce production costs.
For achieving the above object, the powder sintered forming method of cutting body of the present invention contains following steps in regular turn: make an identical shaped cutting body workpiece according to cutting body; Penetrate an Overmolded thermoplastic plastic die body at cutting body workpiece periphery and one end; Be rotated by the cutting body workpiece other end and withdraw from the plastics die body, make the plastics die body constitute a cutting body shaping mold cavity that contains opening; The plastics die body is inserted powder penetrate,, make a cutting body powder conglomerate in the cutting body shaping mold cavity, to inject cutter material powder binding agent mixing with it with in the mould; Take out plastics die body and cutting body powder conglomerate, isolate binding agent to extract, to take off ester, and add heat abstraction plastics die body; And cutting body powder conglomerate is carried out high temperature sintering make the powder sintered cutting body of cutter material.
Again, when the present invention injects cutter material powder binding agent mixing with it in the cutting body shaping mold cavity, the body formed die cavity of handle that can be connected in mould is injected metal dust binding agent mixing with it, connects a handle body powder conglomerate to make a cutting body powder conglomerate; Take out plastics die body and cutting body powder conglomerate and handle body powder conglomerate, isolate binding agent to extract, to take off ester, and add heat abstraction plastics die body; And cutting body powder conglomerate and handle body powder conglomerate carried out high temperature sintering, contain the cutting element of the powder sintered cutting body one of cutter material to make in conjunction with metal powder sintered handle body.
Owing to adopt above technical scheme, the present invention can be made into integration powder sintered cutting body, but one combining powder sintering handle body more, to improve cutting element precision machining and quality, being more suitable for a large amount of the manufacturing produces, and save manpower, time and tungsten carbide steel or alumina ceramic material consumption, reduce production costs.
Description of drawings
Fig. 1 is the stereogram of preferred embodiment cutting element finished product of the present invention;
Fig. 2 is the cutaway view of Fig. 1 cutting element;
Fig. 3 is a schematic diagram of making the cutting body workpiece according to Fig. 2 cutting body;
Fig. 4 is the cutaway view that hookup 3 is made the plastics die body;
Fig. 5 withdraws from the schematic diagram of cutting body workpiece for hookup 4 rotations;
Fig. 6 is the cutaway view as Fig. 5 plastics die body;
Fig. 7 is the schematic diagram of hookup 6 plastics die body ejection formation cutting body powder conglomerates;
Fig. 8 makes the schematic diagram of powder sintered cutting body for hookup 7 high temperature sinterings;
Fig. 9 is the structure chart of another preferred embodiment cutting element finished product of the present invention;
Figure 10 is a schematic diagram of making the cutting body workpiece according to Fig. 9 cutting body;
Figure 11 is that the Figure 10 that continues makes the cutaway view of plastics die body;
Figure 12 is that the schematic diagram of cutting body workpiece is withdrawed from continue Figure 11 rotation;
Figure 13 is the cutaway view as Figure 12 plastics die body;
Figure 14 is continue Figure 13 plastics die body ejection formation cutting body powder conglomerate and the schematic diagram that combines handle body powder conglomerate;
Figure 15 is that Figure 14 high temperature sintering that continues is made the schematic diagram of powder sintered cutting element.
The main element symbol description:
1 cutting element, 16 cutting elements
2 cutting bodies, 17 cutting bodies
3 handle bodies, 18 handle bodies
19 ends, 4 ends
5 rod ends, 20 rod ends
6 hole portions, 21 rod ends
7 cutting blades, 22 cutting blades
8 flutes, 23 flutes
9 cutting body workpiece, 24 cutting body workpiece
10 penetrate mould 25 penetrates mould
11 plastics die bodys, 26 plastics die bodys
12 cutting body shaping mold cavities, 27 cutting body shaping mold cavities
13 openings, 28 openings
14 moulds, 29 moulds
30 cutting body powder conglomerates of 15 cutting body powder conglomerates
The body formed die cavity of 31 handles
32 handle body powder conglomerates
The specific embodiment
Relevant the present invention is for reaching above-mentioned purpose, and technological means that is adopted and effect thereof enumerate possible embodiments now, and conjunction with figs. are described as follows:
At first, see also Fig. 1 and Fig. 2, the present invention is primarily aimed at cutting elements 1 such as drill bit, spirality end mill(ing) cutter, circuit boring microbit especially as shown in the figure.The powder sintered forming method of cutting element 1 of the present invention and cutting body 2 thereof, be to be used to make a cutting body 2 (brill health) that contains an end 4 and relative other end rod end 5, its periphery is along being axially arranged with continuous helical shape cutting blade 7 and flute 8, and cutting body 2 direct hole portions 6 with the fixed handle body 3 of rod end 5 grafting, and constitute cutting element 1.In addition, the present invention also can make cutting body 17 one sintering handle bodies 18 in powder sintered mode, and constitute powder sintered cutting element 16 as shown in Figure 9.
In Fig. 1, Fig. 2 and preferred embodiment shown in Figure 3, the powder sintered forming method of cutting body 2 of the present invention contains following steps in regular turn: according to the identical shaped metal material cutting body workpiece 9 of cutting body 2 processing and fabricatings one, or use general corresponding drill bit; Cooperate ejaculation mould 10 shown in Figure 4 again, to penetrate an Overmolded PP or PE thermoplastic plastic die body 11 at cutting body workpiece 9 peripheries and one end 4; As Fig. 5 and shown in Figure 6, be rotated by cutting body workpiece 9 other ends and withdraw from plastics die body 11, make plastics die body 11 constitute a cutting body shaping mold cavity 12 that contains opening 13; Again as shown in Figure 7, plastics die body 11 is placed in powder to be penetrated with in the mould 14, in cutting body shaping mold cavity 12, to inject cutter material powder binding agent mixing with it, for example be selected from the one kind of of tungsten carbide, titanium carbide, aluminium oxide (ceramic material) powder, can make a cutting body powder conglomerate 15; Take out plastics die body 11 and cutting body powder conglomerate 15 immediately, extract, take off ester with chemical solvent and isolate binding agent, and add heat abstraction plastics die body 11; At last cutting body powder conglomerate 15 is carried out high temperature sintering and make the powder sintered cutting body 2 of cutter material (consulting Fig. 1, Fig. 2 and Fig. 8), constitute cutting element 1 with the fixed handle body 3 of winding.
Go on to say the powder sintered forming method of cutting body 2, to shown in Figure 8, further the helical form cutting blade 7 along the powder sintered made cutting body 2 of cutter material grinds as Fig. 1.And wherein the cutting blade of cutting body workpiece 9 can have the reservation position in advance, carries out grinding edge 7 for the powder sintered cutting body 2 of made cutter material.In addition, the end of cutting body workpiece 9 can be used as apex point, also can have the reservation position, for the powder sintered cutting body 2 of cutter material apex point is ground out in end 4.The present invention can be made into integration powder sintered cutting body 2, to improve cutting element 1 precision machining and quality, is more suitable for a large amount of the manufacturing and produces, and save manpower, time and tungsten carbide rolled steel dosage, reduces production costs.
The present invention is more suitable for the one-body molded powder sintered cutting element 16 that goes out, as Fig. 9 and shown in Figure 10, the powder sintered forming method of cutting element 16 contains following steps in regular turn: make an identical shaped cutting body workpiece 24 according to end 19, the cutting blade 22 of cutting body 17 with its flute 23 equally; Cooperate ejaculation mould 25 shown in Figure 11 again, to penetrate an Overmolded thermoplastic plastic die body 26 in cutting body workpiece 24 peripheries and one end 19; As Figure 12 and shown in Figure 13, be rotated by cutting body workpiece 24 other ends and withdraw from plastics die body 26, make plastics die body 26 constitute a cutting body shaping mold cavity 27 that contains opening 28; Again as shown in figure 14, plastics die body 26 is placed in the end that powder penetrates the body formed die cavity 31 of handle of using mould 29 inside, in cutting body shaping mold cavity 27, inject cutter material powder binding agent mixing with it, and the body formed die cavity 31 of the handle that is connected in mould 29 is injected stainless steel metal powder binding agent mixing with it, connects a handle body powder conglomerate 32 to make a cutting body powder conglomerate 30; Take out plastics die body 26 and cutting body powder conglomerate 30 and handle body powder conglomerate 32 immediately, isolate binding agent to extract, to take off ester, and add heat abstraction plastics die body 26; At last cutting body powder conglomerate 30 and handle body powder conglomerate 32 are carried out high temperature sintering, make rod end 20 one of the powder sintered cutting body 17 of cutter material bake relative rod end 21 (consulting Fig. 9 and Figure 15), to make powder sintered cutting element 16 in conjunction with metal powder sintered handle body 18.
Comprehensive the above, the present invention can be made into integration powder sintered cutting body, but one combining powder sintering handle body more, to improve cutting element precision machining and quality, be more suitable for a large amount of the manufacturing and produce, and save manpower, time and tungsten carbide rolled steel dosage, reduce production costs.
Above illustrated embodiment is only used the present invention for convenience of description, and is not in a limitative way, not from the present invention spirit category, the those skilled in the art various simple and easy variation and the modification that can do, all must include in the scope of claims.
Claims (10)
1. powder sintered forming method of cutting element cutting body is to be used to make a cutting body that contains an end and relative other end rod end, and its periphery is along being axially arranged with continuous helical shape cutting blade and flute; It is characterized in that the powder sintered forming method of this cutting body contains following steps in regular turn:
Make an identical shaped cutting body workpiece according to cutting body;
Penetrate an Overmolded thermoplastic plastic die body at cutting body workpiece periphery and one end;
Be rotated by the cutting body workpiece other end and withdraw from the plastics die body, make the plastics die body constitute a cutting body shaping mold cavity that contains opening;
The plastics die body is inserted powder penetrate,, make a cutting body powder conglomerate in the cutting body shaping mold cavity, to inject cutter material powder binding agent mixing with it with in the mould;
Take out plastics die body and cutting body powder conglomerate, isolate binding agent to extract, to take off ester, and add heat abstraction plastics die body; And
Cutting body powder conglomerate is carried out high temperature sintering make the powder sintered cutting body of cutter material.
2. the powder sintered forming method of cutting element cutting body according to claim 1 is characterized in that further the helical form cutting blade along the powder sintered cutting body of cutter material grinds.
3. the powder sintered forming method of cutting element cutting body according to claim 1 is characterized in that the cutting blade of this cutting body workpiece and the powder sintered cutting body of cutter material has the reservation position, to carry out grinding edge in the powder sintered cutting body of cutter material.
4. the powder sintered forming method of cutting element cutting body according to claim 1 is characterized in that the powder sintered cutting body of the cutter material of this cutting element is made as the brill health of drill bit, grinds to form apex point in its end.
5. the powder sintered forming method of cutting element cutting body according to claim 1 is characterized in that, this cutter material powder is selected from the one kind of of tungsten carbide, titanium carbide, aluminium oxide.
6. the powder sintered forming method of cutting element is used to make one and contains a handle body and axial cutting element in conjunction with a cutting body, and this cutting body has an end and relative other end rod end, and its periphery is along being axially arranged with continuous helical shape cutting blade and flute; It is characterized in that the powder sintered forming method of this cutting element contains following steps in regular turn:
Make an identical shaped cutting body workpiece according to cutting body;
Penetrate an Overmolded thermoplastic plastic die body at cutting body workpiece periphery and one end;
Be rotated by the cutting body workpiece other end and withdraw from the plastics die body, make the plastics die body constitute a cutting body shaping mold cavity that contains opening;
The plastics die body is inserted the end that powder penetrates the body formed die cavity of handle of using mould inside, in the cutting body shaping mold cavity, inject cutter material powder binding agent mixing with it, and the body formed die cavity of the handle that is connected in mould is injected metal dust binding agent mixing with it, connects a handle body powder conglomerate to make a cutting body powder conglomerate;
Take out plastics die body and cutting body powder conglomerate and handle body powder conglomerate, isolate binding agent to extract, to take off ester, and add heat abstraction plastics die body; And
Cutting body powder conglomerate and handle body powder conglomerate are carried out high temperature sintering, contain the cutting element of the powder sintered cutting body one of cutter material in conjunction with metal powder sintered handle body to make.
7. the powder sintered forming method of cutting element according to claim 6 is characterized in that further the helical form cutting blade along the powder sintered cutting body of cutter material grinds.
8. the powder sintered forming method of cutting element according to claim 6 is characterized in that the cutting blade of this cutting body workpiece and the powder sintered cutting body of cutter material has the reservation position, to carry out grinding edge in the powder sintered cutting body of cutter material.
9. the powder sintered forming method of cutting element according to claim 6 is characterized in that this cutting element is made as drill bit, and the powder sintered cutting body of cutter material is made as the brill health, grinds to form apex point in its end.
10. the powder sintered forming method of cutting element according to claim 6 is characterized in that, this cutter material powder is selected from the one kind of of tungsten carbide, titanium carbide, aluminium oxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101323793A CN102189257A (en) | 2010-03-10 | 2010-03-10 | Powder sintering forming method for cutting tool and cutting body thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101323793A CN102189257A (en) | 2010-03-10 | 2010-03-10 | Powder sintering forming method for cutting tool and cutting body thereof |
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| CN102189257A true CN102189257A (en) | 2011-09-21 |
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| CN2010101323793A Pending CN102189257A (en) | 2010-03-10 | 2010-03-10 | Powder sintering forming method for cutting tool and cutting body thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974826A (en) * | 2012-11-22 | 2013-03-20 | 浙江明磊工具实业有限公司 | Manufacturing method of tool bit of electric screw driver |
| CN102974825A (en) * | 2012-11-22 | 2013-03-20 | 浙江明磊工具实业有限公司 | Manufacturing method of drill bit |
| CN103447590A (en) * | 2012-05-31 | 2013-12-18 | 创国兴业有限公司 | Method for manufacturing drill bit structure and drill bit structure |
| CN107553067A (en) * | 2017-08-18 | 2018-01-09 | 武汉新锐合金工具有限公司 | A kind of preparation method of large-size ultra-thin hard alloy substrate |
| CN108655467A (en) * | 2018-05-18 | 2018-10-16 | 东莞安默琳机械制造技术有限公司 | Veneer for lubricating system with trace amount cools down miniature machine tool |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756607A (en) * | 2003-03-05 | 2006-04-05 | 石川岛播磨重工业株式会社 | Method for manufacturing mold |
| CN1759957A (en) * | 2005-10-27 | 2006-04-19 | 西安建筑科技大学 | Technique for manufacturing wearable pipe made from composite bimetal |
| CN101195161A (en) * | 2006-12-08 | 2008-06-11 | 富准精密工业(深圳)有限公司 | Process for manufacturing hydrodynamic bearing |
| JP2008156667A (en) * | 2006-12-20 | 2008-07-10 | Toho Titanium Co Ltd | Sintering method and sintering tool |
| TWM369807U (en) * | 2009-07-24 | 2009-12-01 | Albert M F Chung | Compound structure of micro drill bit |
-
2010
- 2010-03-10 CN CN2010101323793A patent/CN102189257A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1756607A (en) * | 2003-03-05 | 2006-04-05 | 石川岛播磨重工业株式会社 | Method for manufacturing mold |
| CN1759957A (en) * | 2005-10-27 | 2006-04-19 | 西安建筑科技大学 | Technique for manufacturing wearable pipe made from composite bimetal |
| CN101195161A (en) * | 2006-12-08 | 2008-06-11 | 富准精密工业(深圳)有限公司 | Process for manufacturing hydrodynamic bearing |
| JP2008156667A (en) * | 2006-12-20 | 2008-07-10 | Toho Titanium Co Ltd | Sintering method and sintering tool |
| TWM369807U (en) * | 2009-07-24 | 2009-12-01 | Albert M F Chung | Compound structure of micro drill bit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447590A (en) * | 2012-05-31 | 2013-12-18 | 创国兴业有限公司 | Method for manufacturing drill bit structure and drill bit structure |
| CN102974826A (en) * | 2012-11-22 | 2013-03-20 | 浙江明磊工具实业有限公司 | Manufacturing method of tool bit of electric screw driver |
| CN102974825A (en) * | 2012-11-22 | 2013-03-20 | 浙江明磊工具实业有限公司 | Manufacturing method of drill bit |
| CN107553067A (en) * | 2017-08-18 | 2018-01-09 | 武汉新锐合金工具有限公司 | A kind of preparation method of large-size ultra-thin hard alloy substrate |
| CN108655467A (en) * | 2018-05-18 | 2018-10-16 | 东莞安默琳机械制造技术有限公司 | Veneer for lubricating system with trace amount cools down miniature machine tool |
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Application publication date: 20110921 |