CN204321222U - A kind of sintex with negative chamfer structure - Google Patents
A kind of sintex with negative chamfer structure Download PDFInfo
- Publication number
- CN204321222U CN204321222U CN201420815837.7U CN201420815837U CN204321222U CN 204321222 U CN204321222 U CN 204321222U CN 201420815837 U CN201420815837 U CN 201420815837U CN 204321222 U CN204321222 U CN 204321222U
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- CN
- China
- Prior art keywords
- sintex
- negative
- edge
- chamfer structure
- chamfered edge
- 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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- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The utility model discloses a kind of sintex with negative chamfer structure, comprise a sintex body; Be be shaped with a negative chamfered edge along main cutting edge on the anterior angle rake face of its sintex, the blade shape of this negative chamfered edge is circular arc cutting edge, and the radius r of this fillet is more than or equal to 0.2mm.It effectively can overcome the existing sintex problem that quick abrasion, easily tipping and service life are short when continuous cutting high hardness material, and structure is simple, easy to process, improves cutter life.
Description
Technical field
The utility model relates to a kind of cutter, particularly relates to a kind of sintex with negative chamfer structure.
Background technology
Ceramic cutting tool material hardness is high, wearability good, lower with the affinity of metal, having and well anti-ly to cohere, spread and the ability of oxidative wear, is desirable metal cutting process material.But, the property of ceramic cutting tool material own is crisp, and bending strength is low, and toughness is very low, and impact resistance is poor, higher to the requirement of processing conditions, easily broken.
At home, sintex then just just really starts to apply in the industrial production in recent years, and proportion shared is at present still very low.Why like this, except the property of sintex own is crisp, impact flexibility and bending strength lower except, the choose reasonable for its geometric parameter lacks systematic research and enough attention, thus can not maximize favourable factors and minimize unfavourable ones better, is also an important reason.
Utility model content
The purpose of this utility model is to provide a kind of sintex with negative chamfer structure, and this tool life is good, and the life-span is longer.
For achieving the above object, the utility model takes following design:
With a sintex for negative chamfer structure, comprise a sintex body; The major and minor cutting edge of the rake face of its sintex has ground negative chamfered edge, and the radius of edge r of this negative chamfered edge is more than or equal to 0.2mm.
Described band is born in the sintex of chamfer structure, and the negative rake γ of described negative chamfered edge is-35 ° ~-25 °.
Described band is born in the sintex of chamfer structure, and described negative chamfered edge is formed by tool sharpening grinding machine attrition process.
Described band is born in the sintex of chamfer structure, and described negative chamfered surface roughness Ra is less than or equal to 0.1 μm.
Described band is born in the sintex of chamfer structure, and described radius of edge r is that 0.2-0.6mm is better.
The utility model has the advantages that: structure is simple, easy to process, improves cutter life, reduces cutter use cost, be the one innovation to existing sintex and improvement, economic and social benefit is remarkable.
Accompanying drawing explanation
Fig. 1 is the sintex structural representation that chamfer structure born by the utility model band.
Fig. 2 is the I position enlarged drawing in Fig. 1.
In figure: 1, sintex, 2, negative chamfered edge (r: radius of edge, b: width, γ: negative rake, Ra: roughness).
Detailed description of the invention
Consult shown in Fig. 1, Fig. 2, the sintex that chamfer structure born by the utility model band comprises a sintex body, and its chief creating point is: on the major and minor cutting edge of the rake face of its sintex 1, grind reasonably negative chamfered edge 2 and the design for this negative chamfered edge shape and structure.
Because the property of ceramic cutting tool material own is crisp, easy fragmentation, therefore the utility model when bearing chamfered edge 2 along main cutting edge system along sintex 1 on positive rake angle rake face, preferred employing lapping mode processes, the cutting edge corner angle ground should be circular arc cutting edge, this radius of edge r should be more than or equal to 0.2mm (0.2-0.6mm is better), shown in Figure 2; And this negative rake γ is-35 ° ~-25 °.
Preferably, the width b of described negative chamfered edge can be the amount of feeding (this sintex on direction of feed motion relative to the displacement of workpiece to be machined) of 5 ~ 8 times, therefore producer can fix processing according to user or often need the amount of feeding of processing work to design the width b of negative chamfered edge in advance, further to make negative chamfered edge with reference to this parameter, during making, also should ensure that the surface roughness Ra of negative chamfered edge seamed edge is less than or equals 0.1 μm as possible.
Such design more can strengthen edge strength, increases the angle of wedge of cutter, can expand area of dissipation simultaneously, effectively can overcome the existing sintex problem that quick abrasion, easily tipping and service life are short when continuous cutting high hardness material.It is few that this negative chamfered edge makes cutting force increase on the basis of strengthening blade, thus can improve tool life.
Below in conjunction with a specific embodiment, the utility model is described in further details.
Example 1, Al
2o
3base composite ceramic cutter at high speeds turning 35CrMnSiA
Select Al
2o
3+ TiC composite ceramics is as blade material, and blade specification is SNGA120404, and C6130 horizontal lathe is processed 35CrMnSiA unimach.On this basis, the combination of the cutting data of cutting speed 190m/min, amount of feeding 0.1mm/r, cutting depth 0.5mm is selected to process surface of the work.Afterwards, use skive to grind sintex on cutter and tool grinding machine, rake face to grind out width b be 0.8mm, angle γ be-31.50 negative chamfered edge, radius of edge r then needs to control at 0.2mm, processes 35CrMnSiA with the combination of identical cutting data.Both compare, and find the wear-resistant damaged better effects if of sintex of the negative chamfered edge of band, cutter life is 5 times of conventional ceramic cutter.
The various embodiments described above can not to depart under protection domain of the present utility model in addition some changes, thus above explanation to comprise and the structure shown in accompanying drawing should be considered as exemplary, and be not used to limit the protection domain that the utility model applies for a patent.
Claims (5)
1. a sintex for the negative chamfer structure of band, comprises a sintex body; It is characterized in that: on the major and minor cutting edge of the rake face of its sintex, ground negative chamfered edge, the radius of edge r of this negative chamfered edge is more than or equal to 0.2mm.
2. the sintex of chamfer structure born by band according to claim 1, it is characterized in that: the negative rake γ of described negative chamfered edge is-35 ° ~-25 °.
3. the sintex of chamfer structure born by band according to claim 1, it is characterized in that: described negative chamfered edge is that grinding is formed, and has circular arc cutting edge.
4. the sintex of chamfer structure born by band according to claim 1, it is characterized in that: the surface roughness Ra of described negative chamfered edge is less than or equal to 0.1 μm.
5. the sintex of chamfer structure born by band according to claim 1, it is characterized in that: described radius of edge r is 0.2-0.6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815837.7U CN204321222U (en) | 2014-12-19 | 2014-12-19 | A kind of sintex with negative chamfer structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420815837.7U CN204321222U (en) | 2014-12-19 | 2014-12-19 | A kind of sintex with negative chamfer structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204321222U true CN204321222U (en) | 2015-05-13 |
Family
ID=53157625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420815837.7U Expired - Fee Related CN204321222U (en) | 2014-12-19 | 2014-12-19 | A kind of sintex with negative chamfer structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204321222U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106312113A (en) * | 2016-11-08 | 2017-01-11 | 哈尔滨理工大学 | Turning blade variable in chamfered edge width and angle |
| CN106346030A (en) * | 2016-11-08 | 2017-01-25 | 哈尔滨理工大学 | Double-circular-arc turning tool blade |
| CN107614165A (en) * | 2016-04-27 | 2018-01-19 | 住友电工硬质合金株式会社 | Cutting tool |
| CN111185629A (en) * | 2020-01-13 | 2020-05-22 | 湖南泰嘉新材料科技股份有限公司 | Tooth of band saw blade and band saw blade |
| CN116460324A (en) * | 2023-05-25 | 2023-07-21 | 江苏双环齿轮有限公司 | Turning tool for intermittent machining of quenching material |
-
2014
- 2014-12-19 CN CN201420815837.7U patent/CN204321222U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107614165A (en) * | 2016-04-27 | 2018-01-19 | 住友电工硬质合金株式会社 | Cutting tool |
| CN106312113A (en) * | 2016-11-08 | 2017-01-11 | 哈尔滨理工大学 | Turning blade variable in chamfered edge width and angle |
| CN106346030A (en) * | 2016-11-08 | 2017-01-25 | 哈尔滨理工大学 | Double-circular-arc turning tool blade |
| CN111185629A (en) * | 2020-01-13 | 2020-05-22 | 湖南泰嘉新材料科技股份有限公司 | Tooth of band saw blade and band saw blade |
| CN116460324A (en) * | 2023-05-25 | 2023-07-21 | 江苏双环齿轮有限公司 | Turning tool for intermittent machining of quenching material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151219 |
|
| EXPY | Termination of patent right or utility model |