CN203401121U - Countersinking and reaming composite cutter for solid carbide drill - Google Patents
Countersinking and reaming composite cutter for solid carbide drill Download PDFInfo
- Publication number
- CN203401121U CN203401121U CN201320338726.7U CN201320338726U CN203401121U CN 203401121 U CN203401121 U CN 203401121U CN 201320338726 U CN201320338726 U CN 201320338726U CN 203401121 U CN203401121 U CN 203401121U
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- cutting edge
- drill
- angle
- cutter
- countersinking
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- Expired - Fee Related
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Abstract
The utility model provides a countersinking and reaming composite cutter for a solid carbide drill, which comprises a drill bit part, a countersink drill part and a handle part. The drill shaft corner of the drill bit part is composed of a main cutting edge and an auxiliary cutting edge, wherein the bit spiral angle of the main cutting edge is 100-120 degrees and the auxiliary cutting edge is positioned at an included angle of 15-20 degrees relative to the axis of the cutter. The relief angle of the main cutting edge is machined to be 13-15 degrees and the relief angle of the auxiliary cutting edge is machined to be 8-10 degrees. According to the technical scheme of the utility model, the countersinking and reaming composite cutter can be applied to the hole drilling process of carbon-fibre composite materials and is good in cutting ability and high in machining efficiency.
Description
Technical field
The utility model relates to a kind of cutter, particularly a kind of solid carbide drill reaming and milling composite cutter.
Background technology
Carbon fibre composite is used in Aero-Space manufacturing industry more and more widely owing to having the plurality of advantages such as ratio of strength to weight height, yet carbon fibre composite is difficult to processing, the especially drilling of carbon fibre composite and titanium alloy or aluminum alloy interlayer structure processing.
Existing processing carbon fibre composite solid carbide drill reaming and milling composite cutter, general cutting edge relief angle is less, it is 10 ° ~ 12 °, drill point angle is larger, it is 135 ° ~ 140 °, said structure parameter makes cutting edge not sharp, cutting resistance is large, so not only easily cause the exit face in processed hole to occur layering and splitting, but also the wearing and tearing of cutter have been aggravated, therefore finally caused the solid carbide drill reaming and milling composite cutter cutting ability of existing processing carbon fibre composite poor, be difficult to meet the boring requirement of processing carbon fibre composite, life-span is short simultaneously, a solid carbide drill reaming and milling composite cutter can only be processed 20 ~ 25 holes conventionally.
Utility model content
The purpose of this utility model is to provide a kind of solid carbide drill reaming and milling composite cutter, for the drilling processing of carbon fibre composite, and its excellent cutting performance, working (machining) efficiency is high.
The technical solution of the utility model: a kind of solid carbide drill reaming and milling composite cutter, comprise bit part, counterbit part and shank part, drill point angle in bit part comprise drill head helix angle be 100 ° ~ 120 ° main cutting edge and with tool axis angle be the front cutting edge of 15 ° ~ 20 °, the relief angle of main cutting edge is made 13 ° ~ 15 °, and the relief angle of front cutting edge is made 8 ° ~ 10 °.
The beneficial effects of the utility model: the utility model reduces the drill point angle of drill bit main cutting edge, make 100 ° ~ 120 °, the relief angle of main cutting edge increases, make 13 ° ~ 15 °, and drill bit front cutting edge is made with tool axis angle is 15 ° ~ 20 °, the relief angle of front cutting edge is made 8 ° ~ 10 °, the improvement of said structure parameter has improved cutting ability and the working (machining) efficiency of cutter, extended the service life of cutter, drill bit is minimum can process 40 ~ 50 holes, thereby has reduced production cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the B-B view of Fig. 1.
The specific embodiment
As shown in Figure 1 to Figure 3, a kind of solid carbide drill reaming and milling composite cutter for carbon fibre composite and titanium alloy or aluminum alloy interlayer structure drilling processing, comprise bit part 1, counterbit part 2 and shank part 3, overall length 66mm, wherein bit part 1 diameter is 5mm, counterbit cone angle is 100 °, and shank part 3 diameters are 10mm.Drill point angle in bit part 1 comprise drill head helix angle be 118 ° main cutting edge and with tool axis angle 4 be the front cutting edge of 18 °, the relief angle 5 of main cutting edge is made 14 °, the relief angle 6 of front cutting edge is made 9 °.
Claims (1)
1. a solid carbide drill reaming and milling composite cutter, comprise bit part (1), counterbit part (2) and shank part (3), it is characterized in that: the drill point angle in bit part (1) comprise drill head helix angle be 100 ° ~ 120 ° main cutting edge and with tool axis angle (4) be the front cutting edge of 15 ° ~ 20 °, the relief angle of main cutting edge (5) is made 13 ° ~ 15 °, and the relief angle of front cutting edge (6) is made 8 ° ~ 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320338726.7U CN203401121U (en) | 2013-06-14 | 2013-06-14 | Countersinking and reaming composite cutter for solid carbide drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320338726.7U CN203401121U (en) | 2013-06-14 | 2013-06-14 | Countersinking and reaming composite cutter for solid carbide drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203401121U true CN203401121U (en) | 2014-01-22 |
Family
ID=49937064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320338726.7U Expired - Fee Related CN203401121U (en) | 2013-06-14 | 2013-06-14 | Countersinking and reaming composite cutter for solid carbide drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203401121U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752884A (en) * | 2014-01-23 | 2014-04-30 | 昆明桂丰机械有限公司 | Method for machining forming hole of annular feed forming mould and reamer |
| CN105642972A (en) * | 2016-04-12 | 2016-06-08 | 山东大学 | Drilling-reaming-dimpling integrated cutting tool |
| CN105834493A (en) * | 2016-05-05 | 2016-08-10 | 覃世文 | Stepped drill bit for Buddha bead hole machining |
-
2013
- 2013-06-14 CN CN201320338726.7U patent/CN203401121U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103752884A (en) * | 2014-01-23 | 2014-04-30 | 昆明桂丰机械有限公司 | Method for machining forming hole of annular feed forming mould and reamer |
| CN103752884B (en) * | 2014-01-23 | 2016-05-25 | 昆明桂丰机械有限公司 | A kind of processing method of fodder forming ring mold forming hole and reamer |
| CN105642972A (en) * | 2016-04-12 | 2016-06-08 | 山东大学 | Drilling-reaming-dimpling integrated cutting tool |
| CN105834493A (en) * | 2016-05-05 | 2016-08-10 | 覃世文 | Stepped drill bit for Buddha bead hole machining |
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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: 20140122 Termination date: 20160614 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |