CN105855542A - Copying graphite boat for sintering negative-angle double-groove milling blade - Google Patents
Copying graphite boat for sintering negative-angle double-groove milling blade Download PDFInfo
- Publication number
- CN105855542A CN105855542A CN201610383760.4A CN201610383760A CN105855542A CN 105855542 A CN105855542 A CN 105855542A CN 201610383760 A CN201610383760 A CN 201610383760A CN 105855542 A CN105855542 A CN 105855542A
- Authority
- CN
- China
- Prior art keywords
- graphite boat
- blade
- supporter
- sintering
- supporting surface
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F2003/1042—Sintering only with support for articles to be sintered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F2005/001—Cutting tools, earth boring or grinding tool other than table ware
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
The invention discloses a copying graphite boat for sintering a negative-angle double-groove milling blade. Cylindrical supporting bodies are arranged on the front side of the substrate of the graphite boat body, the axial distance of adjacent supporting bodies is slightly more than the peripheral diameter of a blade compact; the cylindrical top end of each supporting body corresponds to the supporting surface of the blade compact; the supporting surface of the blade compact is placed at the cylindrical top ends of the supporting bodies. According to the copying graphite boat, the supporting position of a product compact on a sintering boat can be changed, the non-cutting area of a product is used as a supporting surface, and the cutting edge is guaranteed to be in a suspended state in the whole sintering state, so that the product quality is ensured.
Description
Technical field
The present invention relates to powder metallurgical technology, particularly to a kind of negative angle double sided slot milling insert sintering profiling graphite boat.
Background technology
Hard alloy negative angle double sided slot milling insert cutting blade is one of indexable digital cuttings center-stage, the quality of cutting blade quality, and direct relation the performance of cutting tip, life-span etc..For the product of negative angle double sided slot milling insert type, owing to cutting edge is higher than the supporting surface of clamping in the middle of blade and it is necessary to the point of a knife fillet participating in cutting is at the highest notch.The feature of powder metallurgy forming, product there will be the process of the ingredient melting recrystallization of binding metal in sintering process, thus causes product to shrink.So in sintering process, always deforming with boat contact site or damage.In the prior art (as shown in Figure 1), blade pressed compact 2 is all placed on plate graphite boat 3 being sintered.In sintering process, due in blade pressed compact 2 binding metal can dissolve, the crystallization process such as precipitation, and all directions all can occur the dimensional contraction of about 18%, so blade pressed compact 2 is under the influence of gravity and other factors, the problems such as the cutting edge contacting one side with plate graphite boat 3 will be deformed, damaged, product quality can not be guaranteed.Hard alloy molding belongs to powder pressing forming.Negative angle double sided slot milling insert supporting surface is less than blade cut sword.In blade pressed compact 2 production process, if be directly put on plane graphite boat 3, in whole sintering process, it is cutting edge stress.During sintering shrinkage, cutting edge can be destroyed, and causes product rejection.
Summary of the invention
It is an object of the invention to provide a kind of profiling graphite boat, design by profiling graphite boat, pressed compact position of holding capacity in sintering process is become the clamping supporting surface in the middle of blade from three points of a knife, ensure that all cutting blades of blade are in vacant state, and there is shrinking when good degree of freedom.Efficiently solve the negative angle double sided slot milling insert problem that cutting edge damages in sintering process, so that it is guaranteed that the quality of product cutting sword.
The present invention realizes above-mentioned purpose by the following technical solutions.A kind of negative angle double sided slot milling insert sintering profiling graphite boat, the front of the substrate of graphite boat body is arranged with cylindrical supporter, and the axis spacing of adjacent supporter is slightly larger than the outer circumference diameter of blade pressed compact, the cylindric top of supporter is corresponding with the supporting surface of blade pressed compact, and the supporting surface of blade pressed compact is placed on the cylindric top of supporter.
Further, the height of described supporter is slightly larger than nose height.
Further, the cylindric top of described supporter is plane.
The contact portion of the present invention is face contact, and blade pressed compact is put on graphite boat imitated structure, and cutting blade is in vacant state, not any with graphite boat body location contacts, it is ensured that in sintering process, product cutting edge is not damaged by.By the contact site of product pressed compact Yu graphite boat, cutting blade change product non-cutting region into, it is ensured that cutting blade in whole sintering process all in vacant state, it is ensured that product quality.By change product pressed compact Support Position on sintering boat, using product non-cutting region as supporting surface, it is ensured that cutting blade is in vacant state in whole sintering process, thus ensure that product quality.
Accompanying drawing explanation
The structural representation that the plate graphite boat that Fig. 1 is traditional is put with blade pressed compact.
Fig. 2 is the planar structure schematic diagram of graphite boat body of the present invention.
Fig. 3 is the side view of graphite boat body of the present invention.
Fig. 4 be in Fig. 2 A-A to cross-sectional view.
Fig. 5 is the side view of negative angle double sided slot milling insert pressed compact.
Fig. 6 is the three-dimensional structure diagram of negative angle double sided slot milling insert pressed compact.
In figure: 1. graphite boat body, 11. substrates, 12. supporters, 2. blade pressed compact, 21. cutting blades, 22. supporting surfaces, 23. blade mounting holes, 3. plate graphite boat.
Detailed description of the invention
Below to the invention will be further described in conjunction with the accompanying drawings and embodiments.See Fig. 2 to Fig. 6, a kind of negative angle double sided slot milling insert sintering profiling graphite boat, the front of the substrate 11 of graphite boat body 1 is arranged with cylindrical supporter 12, and the axis spacing L of adjacent supporter 12 is slightly larger than the outer circumference diameter of blade pressed compact 2, the cylindric top of supporter 12 is corresponding with the supporting surface 22 of blade pressed compact 2, and the supporting surface 22 of blade pressed compact 2 is positioned on the cylindric top of supporter 12.The height H of described supporter 12 is slightly larger than nose height h.The cylindric top of described supporter 12 is plane.
Embodiment:Being provided with blade mounting holes 23 in the middle of negative angle double sided slot milling insert, the supporting surface that periphery, two ends is plane 22 of blade mounting holes 23, cutting blade 21 is arranged at the periphery of supporting surface 22, and cutting blade 21 is all high than the supporting surface 22 in the middle of blade.If supported as sintering with traditional plate graphite boat 3, must there be three cutting blades 21 of one side and the plane contact of plate graphite boat 3, and sintering temperature is the highest can reach more than 1400 DEG C in the case of, blade pressed compact 2 there will be liquid phase in sintering process, experience is dissolved, is reset the physical processes such as precipitation, cause the point of a knife contacted with boat to be deformed, the defect such as damage, seriously limit the batch production of this type of blade.The bottom surface of the substrate 11 of the graphite boat body 1 of the present invention is plane, (substrate 11 above) is arranged with cylindrical supporter 12 in front, and the axis spacing L of adjacent supporter 12 is slightly larger than the outer circumference diameter of blade pressed compact 2, the cylindric top of supporter 12 is corresponding with the supporting surface 22 of blade pressed compact 2, and the supporting surface 22 of blade pressed compact 2 is positioned on the cylindric top of supporter 12.
Profiling graphite boat according to the present invention, different products, middle supporting surface 22 can have different structures and shape, it is necessary to according to the imitated structure that different product designs is different, it is ensured that product realizes face with profiling graphite boat and contacts；The height H of supporter 12 is determined according to product nose height h.According to product circumscribed circle diameter, determine the axis spacing L of supporter 12.Ensure that the end face of supporter 12 contacts for face at supporting surface 22 with blade pressed compact 2, it is ensured that support strength；Guarantee that point of a knife is in vacant state, the not natural shrinking by any external force in whole sintering process.
Claims (3)
1. a negative angle double sided slot milling insert sintering profiling graphite boat, it is characterized in that, the front of the substrate of graphite boat body is arranged with cylindrical supporter, and the axis spacing of adjacent supporter is slightly larger than the outer circumference diameter of blade pressed compact, the cylindric top of supporter is corresponding with the supporting surface of blade pressed compact, and the supporting surface of blade pressed compact is placed on the cylindric top of supporter.
Negative angle double sided slot milling insert sintering profiling graphite boat the most according to claim 1, it is characterised in that the height of described supporter is slightly larger than nose height.
Negative angle double sided slot milling insert sintering profiling graphite boat the most according to claim 1, it is characterised in that the cylindric top of described supporter is plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610383760.4A CN105855542A (en) | 2016-06-02 | 2016-06-02 | Copying graphite boat for sintering negative-angle double-groove milling blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610383760.4A CN105855542A (en) | 2016-06-02 | 2016-06-02 | Copying graphite boat for sintering negative-angle double-groove milling blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105855542A true CN105855542A (en) | 2016-08-17 |
Family
ID=56675603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610383760.4A Pending CN105855542A (en) | 2016-06-02 | 2016-06-02 | Copying graphite boat for sintering negative-angle double-groove milling blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105855542A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100491032B1 (en) * | 2002-12-24 | 2005-05-24 | 재단법인 포항산업과학연구원 | Plate for using powder injection molding |
| CN102179516A (en) * | 2011-04-21 | 2011-09-14 | 株洲钻石切削刀具股份有限公司 | Multipurpose boat for powder metallurgical sintering and multipurpose boat unit |
| CN102534565A (en) * | 2012-03-22 | 2012-07-04 | 株洲欧科亿硬质合金有限公司 | Load boat for production of coating knife and application thereof |
| CN203582969U (en) * | 2013-10-23 | 2014-05-07 | 东海耀碳素（大连）有限公司 | Tower boat-type graphite boat |
| CN205673589U (en) * | 2016-06-02 | 2016-11-09 | 江西稀有稀土金属钨业集团有限公司 | A kind of negative angle double sided slot milling insert sintering profiling graphite boat |
-
2016
- 2016-06-02 CN CN201610383760.4A patent/CN105855542A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100491032B1 (en) * | 2002-12-24 | 2005-05-24 | 재단법인 포항산업과학연구원 | Plate for using powder injection molding |
| CN102179516A (en) * | 2011-04-21 | 2011-09-14 | 株洲钻石切削刀具股份有限公司 | Multipurpose boat for powder metallurgical sintering and multipurpose boat unit |
| CN102534565A (en) * | 2012-03-22 | 2012-07-04 | 株洲欧科亿硬质合金有限公司 | Load boat for production of coating knife and application thereof |
| CN203582969U (en) * | 2013-10-23 | 2014-05-07 | 东海耀碳素（大连）有限公司 | Tower boat-type graphite boat |
| CN205673589U (en) * | 2016-06-02 | 2016-11-09 | 江西稀有稀土金属钨业集团有限公司 | A kind of negative angle double sided slot milling insert sintering profiling graphite boat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160817 |