CN101912966B - Pressing die for hard alloy blade - Google Patents
Pressing die for hard alloy blade Download PDFInfo
- Publication number
- CN101912966B CN101912966B CN2010102530023A CN201010253002A CN101912966B CN 101912966 B CN101912966 B CN 101912966B CN 2010102530023 A CN2010102530023 A CN 2010102530023A CN 201010253002 A CN201010253002 A CN 201010253002A CN 101912966 B CN101912966 B CN 101912966B
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- China
- Prior art keywords
- die
- hard alloy
- pressing
- carbide
- compacting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000956 alloy Substances 0.000 title claims abstract description 22
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 21
- 238000003825 pressing Methods 0.000 title abstract 8
- 230000000295 complement effect Effects 0.000 claims description 7
- 238000005245 sintering Methods 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000008602 contraction Effects 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
- 229910000679 solder Inorganic materials 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
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- Powder Metallurgy (AREA)
- Earth Drilling (AREA)
Abstract
The invention relates to a pressing die for a hard alloy blade. A die shell is provided with a pressing female die matched with the hard alloy blade, and included angles alpha between two sides of the pressing female die and the bottom edge are 91 to 94 degrees; and the included angles alpha between two sides of the pressing female die and the bottom edge are determined by the contraction coefficient of the hard alloy adopted by the stamped blade. The difference between the length size of the bottom edge welding face of a hard alloy blade product produced by sintering after the pressing of the pressing die for the hard alloy blade and the horizontal measured length size of a herringbone cutting edge is within 0 to 0.3 millimeter so as to meet the quality requirement of the product and greatly improve the yield and the production efficiency; and the hard alloy raw material consumed for producing the qualified product according to the pressing die is reduced by 2 to 4 grams per sheet compared with the traditional die for producing the product of the same specification, so a large amount of resource can be saved and the cost can be reduced.
Description
Technical field
The present invention relates to the compacting tool set of a kind of compacting tool set, particularly a kind of carbide chip.
Background technology
A kind of carbide chip that is used to be welded on spiral bit and straight fluted drill is pentagon, and is as shown in Figure 2; Wherein the top is the herringbone blade, and the dual-side of carbide chip and base solder side be vertical to become 90 ° of angles.By the conventional molds design, mould housing is provided with the stamping cavity die that is complementary with carbide chip and calculates constriction coefficient, and is as shown in Figure 1; The angle of stamping cavity die dual-side and base solder side also all is 90 °; If the measurement length dimension of herringbone top level is A, the length dimension of base solder side is B, A=B.But because its complex-shaped, green density is inhomogeneous, and the length dimension D of the base solder side of the product of producing through high temperature sintering is than the big 0.4～0.8mm of measurement length dimension C of herringbone blade level; And that the quality requirement of qualified products is for both is overproof within 0～0.3mm.
Summary of the invention
The compacting tool set that the purpose of this invention is to provide a kind of carbide chip, the product that after its compacting, produces by sintering meets the product quality requirement.
For solving the problems of the technologies described above; Technical scheme of the present invention is: a kind of compacting tool set of carbide chip, comprise mould housing and carbide chip, and said carbide chip is a pentagon; Wherein the top is the herringbone blade, and carbide chip dual-side and base be vertical to become 90 ° of angles.Said mould housing is provided with the compacting die that is complementary with carbide chip, and each side in two sides of said compacting die equates with the angle on base, α=91 °～94 °.Each side of said compacting die and the angle on base depend on the constriction coefficient of carbide alloy that pressed blade adopts:
The constriction coefficient of a carbide alloy is f=1.22, α=91 °;
The constriction coefficient of No. two carbide alloy is f=1.225, α=92 °;
The constriction coefficient of No. three carbide alloy is f=1.23, α=93 °;
The constriction coefficient of No. four carbide alloy is f=1.235, α=94 °.
The invention has the beneficial effects as follows: the difference of the length dimension of the carbide cutter tool flake products base solder side that after the compacting tool set compacting of the carbide chip that the present invention designs, produces by sintering and the horizontal survey length dimension of herringbone blade is within 0～0.3mm; The quality requirement that meets product improves yield rate and production efficiency greatly; The qualified products of producing by the present invention than the same specification product that adopts traditional moulds to produce consume hard alloy material, every will be reduced by 2～4g, can practice thrift ample resources, reduces cost.
Description of drawings
Fig. 1 is the sketch map of the traditional moulds of carbide chip.
Fig. 2 is the carbide cutter tool flake products sketch map that after the traditional moulds compacting, produces by sintering.
Fig. 3 is the sketch map of the carbide cutter tool die that designs of the present invention.
Fig. 4 is the carbide chip sketch map that after the mould compacting of the carbide chip of the present invention's design, produces by sintering.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Embodiment 1 is shown in Fig. 3-4: a carbide chip compacting tool set, being used to adopt constriction coefficient is the carbide alloy compacting carbide chip 3 of f=1.22.Mould housing 1 is provided with the compacting die 2 that is complementary with carbide chip 3, and said compacting die 2 is a pentagon, and wherein the top is a herringbone, and each side in compacting die 2 two sides equates with the angle on base, α=91 °; If the horizontal survey length dimension of top is E, the length dimension on base is F, E＞F.The difference of the length dimension L of the carbide chip base solder side that after this mould compacting, produces by sintering and the horizontal survey length dimension G of herringbone blade meets the quality requirement of product within 0～0.3mm.
Embodiment 4 is shown in Fig. 3-4: No. four carbide chip compacting tool sets, being used to adopt constriction coefficient is No. four carbide alloy compacting carbide chips 3 of f=1.235.Mould housing 1 is provided with the compacting die 2 that is complementary with carbide chip 3, and said compacting die 2 is a pentagon, and wherein the top is a herringbone, and each side in compacting die 2 two sides equates with the angle on base, α=94 °; If the horizontal survey length dimension of top is E, the length dimension on base is F, E＞F.The difference of the length dimension L of the carbide chip base solder side that after this mould compacting, produces by sintering and the horizontal survey length dimension G of herringbone blade meets the quality requirement of product within 0～0.3mm.
Claims (1)
1. the compacting tool set of a carbide chip comprises mould housing (1) and carbide chip (3), and said carbide chip (3) is a pentagon, and wherein the top is the herringbone blade, and two sides of carbide chip all become 90 ° of angles with the base is vertical; Said mould housing (1) is provided with the compacting die (2) that is complementary with carbide chip (3), it is characterized in that: each side in (2) two sides of said compacting die equates with the angle on base, α=91 °～94 °; Each side of said compacting die (2) and the angle on base depend on the constriction coefficient of carbide alloy that pressed blade adopts:
The constriction coefficient of a carbide alloy is f=1.22, α=91 °;
The constriction coefficient of No. two carbide alloy is f=1.225, α=92 °;
The constriction coefficient of No. three carbide alloy is f=1.23, α=93 °;
The constriction coefficient of No. four carbide alloy is f=1.235, α=94 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102530023A CN101912966B (en) | 2010-08-13 | 2010-08-13 | Pressing die for hard alloy blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102530023A CN101912966B (en) | 2010-08-13 | 2010-08-13 | Pressing die for hard alloy blade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101912966A CN101912966A (en) | 2010-12-15 |
| CN101912966B true CN101912966B (en) | 2012-01-04 |
Family
ID=43320685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102530023A Expired - Fee Related CN101912966B (en) | 2010-08-13 | 2010-08-13 | Pressing die for hard alloy blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101912966B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104707999B (en) * | 2015-03-16 | 2017-12-26 | 江西江钨硬质合金有限公司 | Special-shaped powder metallurgy product impact forming method and mould |
| CN115443197A (en) * | 2020-04-24 | 2022-12-06 | 罗伯特·博世有限公司 | Compression mold and method for forming cemented carbide drill bit blades by width direction compression |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431075A (en) * | 1995-08-10 | 2003-07-23 | 布莱克-德克尔公司 | Method of processing blades |
| CN201755661U (en) * | 2010-08-13 | 2011-03-09 | 江西稀有稀土金属钨业集团有限公司 | Compacting tool set for carbide blade |
-
2010
- 2010-08-13 CN CN2010102530023A patent/CN101912966B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1431075A (en) * | 1995-08-10 | 2003-07-23 | 布莱克-德克尔公司 | Method of processing blades |
| CN201755661U (en) * | 2010-08-13 | 2011-03-09 | 江西稀有稀土金属钨业集团有限公司 | Compacting tool set for carbide blade |
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| Publication number | Publication date |
|---|---|
| CN101912966A (en) | 2010-12-15 |
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Granted publication date: 20120104 |