CN106513791A - Twist drill for machining stainless steel - Google Patents
Twist drill for machining stainless steel Download PDFInfo
- Publication number
- CN106513791A CN106513791A CN201611263733.XA CN201611263733A CN106513791A CN 106513791 A CN106513791 A CN 106513791A CN 201611263733 A CN201611263733 A CN 201611263733A CN 106513791 A CN106513791 A CN 106513791A
- Authority
- CN
- China
- Prior art keywords
- drill
- stainless steel
- drill bit
- edge
- cutter hub
- 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
Links
- 239000010935 stainless steel Substances 0.000 title claims abstract description 30
- 229910001220 stainless steel Inorganic materials 0.000 title claims abstract description 30
- 238000003754 machining Methods 0.000 title abstract 4
- 239000000463 material Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- JPNWDVUTVSTKMV-UHFFFAOYSA-N cobalt tungsten Chemical class [Co].[W] JPNWDVUTVSTKMV-UHFFFAOYSA-N 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract 4
- 238000005482 strain hardening Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 3
- 238000005457 optimization Methods 0.000 description 3
- 238000010009 beating Methods 0.000 description 2
- 229910003460 diamond Inorganic materials 0.000 description 2
- 239000010432 diamond Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B51/00—Tools for drilling machines
- B23B51/02—Twist drills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/32—Chip breaking or chip evacuation
- B23B2200/328—Details of chip evacuation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
- B23B2222/28—Details of hard metal, i.e. cemented carbide
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention relates to the technical field of cutting tools, in particular to a twist drill for machining stainless steel. The twist drill for machining the stainless steel comprises a drill handle, a drill edge, a transition rod and a chip removing groove; and one end of the transition rod is connected with the drill handle, and the other end of the transition rod is connected with the drill edge. The chip removing groove is spirally arranged on the outer wall of the drill edge; the length L2 of the drill edge is 5.0+/-0.02 mm; a drill bit is arranged on the end portion of the drill edge; the edge strip width L3 of a circumferential cutting edge of the drill bit is 0.13 mm; the unilateral width L4 of a cutter body after grooving of the drill bit is 0.72 mm; the included angle A1 of two drill points at the top end of the drill bit is 140 degrees; the spiral angle A2 of the chip removing groove is 30 degrees; and the drill handle, the drill bit and the transition rod form the cutter body through an integrated structure. The problems that during stainless steel machining, chip removal is difficult, and cutter fracture is caused during work-hardening are solved, needed holes can be smoothly drilled in the stainless steel, it is not needed to form a centering hole, the production efficiency is substantially improved, and cost is saved.
Description
Technical field
The present invention relates to a kind of fluted drill, refers in particular to process a kind of processing stainless steel fluted drill, belongs to cutting element technology
Field.
Background technology
Fluted drill is to be relatively fixed the rotary cutting of axis with the instrument of the circular hole of drilling workpiece by which.Because of its chip pocket
Curl and be similar to fried dough twist and gain the name.Helicla flute has 2 grooves, 3 grooves or more multiple-grooved, but most commonly seen with 2 grooves.Fluted drill can be pressed from both sides
Hold to hold in hand fluted drill manually, electrically and use on formula boring bar tool or drilling machine, milling machine, lathe or even machining center.Drill bit material
Material is generally high-speed tool steel or hard alloy.
But existing fluted drill processing stainless steel hardness is not enough, and stainless steel belongs to difficult-to-machine material, existing fluted drill
Processing stainless steel by produce processing hardening and glutinous knife puzzlement normal process, existing cutter can not meet its requirement.
The content of the invention
The invention aims to overcome the deficiencies in the prior art and provide a kind of processing stainless steel fluted drill, overcome
During processing stainless steel, chip removal is difficult and processing hardening causes the difficult problems such as cutter rupture, required for smoothly can getting out on stainless steel
Hole, without the need for beating internal point, production efficiency is greatly improved, cost has been saved.
To reach above-mentioned purpose, the technical solution used in the present invention is：A kind of processing stainless steel fluted drill, including drillstock, brill
Sword, transiting rod and chip area, one end of transiting rod are connected with drillstock, and the other end of transiting rod is connected with drill lip.
Chip area is twist arranged on the outer wall of drill lip, and length L2 of drill lip is 5.0 ± 0.02mm, the end of drill lip
Drill bit is provided with, all sword margin width L3 of described drill bit are 0.13mm, and the monolateral wide L4 of cutter hub is 0.72mm after drill bit fluting, is bored
Two apex point included angle A 1 of crown end is 140, and helical angle A2 of chip area is 30, and drillstock, drill bit and transiting rod are tied using integral type
Structure constitutes cutter hub.
As the further optimization of the technical program, length L1 of the cutter hub described in processing stainless steel fluted drill of the present invention
For 38 ± 0.2mm.
Used as the further optimization of the technical program, the material of the cutter hub described in processing stainless steel fluted drill of the present invention is adopted
Use tungsten-cobalt series hard alloy.
As the further optimization of the technical program, the diameter D1 of the drillstock described in processing stainless steel fluted drill of the present invention
For 3 0-0.005mm;The diameter D2 of drill lip is 1.3-0.005-0.015mm.
Due to the utilization of above-mentioned technical proposal, the present invention has following advantages compared with prior art：
The processing stainless steel fluted drill of the present invention program, when overcoming processing stainless steel, chip removal is difficult and processing hardening causes knife
The difficult problems such as tool rupture, the hole required for smoothly can getting out on stainless steel, without the need for beating internal point, is greatly improved production effect
Rate, has saved cost.
Description of the drawings
Below in conjunction with the accompanying drawings technical solution of the present invention is described further：
Front view of the accompanying drawing 1 for processing stainless steel fluted drill of the present invention.
Left view of the accompanying drawing 2 for processing stainless steel fluted drill of the present invention；Wherein：Drillstock 1, drill lip 2, transiting rod 3, chip removal
Groove 4, drill bit 5.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in further detail.
Of the present invention a kind of processing stainless steel fluted drill as shown in figure 1 and 2, including：Drillstock 1, drill lip 2,
Transiting rod 3 and chip area 4, one end of transiting rod 3 are connected with drillstock 1, and the other end of transiting rod 3 is connected with drill lip 2, transiting rod 3
It is tapered.
Chip area 4 is twist arranged on the outer wall of drill lip 2, and length L2 of drill lip 2 is 5.0 ± 0.02mm, drill lip 2
End is provided with drill bit 5, and all sword margin width L3 of described drill bit 5 are 0.13mm, and after drill bit 5 is slotted, the monolateral wide L4 of cutter hub is
0.72mm, 5 top of drill bit, two apex point included angle A 1 is 140, and helical angle A2 of chip area 4 is 30, drillstock 1, drill bit 2 and transiting rod
3 constitute cutter hub using integral structure.
Length L1 of described cutter hub is 38 ± 0.2mm.
The material of described cutter hub adopts tungsten-cobalt series hard alloy.
The diameter D1 of described drillstock 1 is 3 0-0.005mm;The diameter D2 of drill lip 2 be 1.3-0.005-
0.015mm。
Drillstock 1, drill bit 2 and transiting rod 3 constitute cutter hub using integral structure, and each parameter that whole cutter hub is adopted is using tree
Fat diamond wheel grinding is reached, and the cutter hub surface roughness being ground using resin diamond grinding wheel is little, is favorably improved
The quality for being drilled, the material of cutter hub adopt hardness HRA of tungsten-cobalt series hard alloy for 93 or so, more than stainless hardness,
And a series of tungsten-cobalt series hard alloy premium properties such as have high, wear-resisting hardness, intensity and toughness preferable, heat-resisting, corrosion-resistant,
Its high rigidity and wearability are particularly, even if being also held essentially constant at a temperature of 500 DEG C, still have very high at 1000 DEG C
Hardness, in processing stainless steel, the cutting of generation will be discharged along chip area 4, and the high resistant to elevated temperatures cutter hub of hardness will not be produced
The phenomenon of processing hardening, the hole required for smoothly can getting out on stainless steel, while the monolateral wide L4 of cutter hub is after drill bit 5 is slotted
5 width of drill bit of 0.72mm, 0.72mm is big, and intensity is high, and drill bit 5 will not be damaged during processing, while the drill bit 5 of high rigidity can one
Secondary property drilling forming, without the need for the drill bit centering punching of high rigidity, is greatly improved production efficiency, has saved cost, while boring
The diameter D1 of handle 1 is 3 0-0.005mm;The diameter D2 of drill lip 2 be 1.3-0.005-0.015mm, the drillstock 1 of small diameter
The less use range for carrying out reaming, expanding processing stainless steel fluted drill can be entered into drill lip 2.
The above is only the concrete application example of the present invention, protection scope of the present invention is not limited in any way.All employings
Equivalents or equivalence replacement and the technical scheme that formed, all fall within rights protection scope of the present invention.
Claims (4)
1. processing stainless steel fluted drill, including drillstock（1）, drill lip（2）, transiting rod（3）And chip area（4）, transiting rod（3）'s
One end is connected with drillstock（1）, transiting rod（3）The other end be connected with drill lip（2）, it is characterised in that：Chip area（4）Twist
It is arranged on drill lip（2）Outer wall on, drill lip（2）Length L2 be 5.0 ± 0.02mm, drill lip（2）End be provided with drill bit
（5）, described drill bit（5）All sword margin width L3 be 0.13mm, drill bit（5）After fluting, the monolateral wide L4 of cutter hub is 0.72mm, is bored
Head（5）Two apex point included angle A 1 of top is 140, chip area（4）Helical angle A2 be 30, drillstock（1）, drill bit（2）And transiting rod
（3）Cutter hub is constituted using integral structure.
2. processing stainless steel fluted drill according to claim 1, it is characterised in that：Length L1 of the cutter hub be 38 ±
0.2mm。
3. processing stainless steel fluted drill according to claim 1, it is characterised in that：The material of the cutter hub adopts tungsten-cobalt
Series hard alloy.
4. processing stainless steel fluted drill according to claim 1, it is characterised in that：The drillstock（1）Diameter D1 be
3 0 -0.005mm;Drill lip（2）Diameter D2 be 1.3-0.005-0.015mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263733.XA CN106513791A (en) | 2016-12-30 | 2016-12-30 | Twist drill for machining stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263733.XA CN106513791A (en) | 2016-12-30 | 2016-12-30 | Twist drill for machining stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106513791A true CN106513791A (en) | 2017-03-22 |
Family
ID=58336302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611263733.XA Pending CN106513791A (en) | 2016-12-30 | 2016-12-30 | Twist drill for machining stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106513791A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107127377A (en) * | 2017-05-15 | 2017-09-05 | 海安国洋机械科技有限公司 | A kind of straight sword drill bit |
| CN110802260A (en) * | 2019-11-28 | 2020-02-18 | 中国航空工业标准件制造有限责任公司 | Drill bit for processing deep hole |
| CN115090936A (en) * | 2022-07-19 | 2022-09-23 | 厦门厦芝科技工具有限公司 | A kind of drill bit with side margin cutting performance and its optimization process |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2757979Y (en) * | 2004-12-31 | 2006-02-15 | 郑黄铮 | Multi-helix angle cutting tool structure |
| CN101282806A (en) * | 2005-08-02 | 2008-10-08 | 天窗工具有限公司 | Twist drill |
| CA2556663C (en) * | 2004-03-17 | 2011-09-20 | Kennametal Inc. | Twist drill |
| WO2013129586A1 (en) * | 2012-02-28 | 2013-09-06 | 京セラ株式会社 | Drill blank, manufacturing method for drill blank, drill, and manufacturing method for drill |
| CN203936431U (en) * | 2014-06-26 | 2014-11-12 | 超美精密工业（惠州）有限公司 | A kind of diclinic rate drill point structure |
| CN204321264U (en) * | 2014-11-05 | 2015-05-13 | 昆山欧思克精密工具有限公司 | Variable helical angle titanium alloy target drill |
| CN204639247U (en) * | 2015-05-14 | 2015-09-16 | 台州百特工具有限公司 | A kind of straight shank twist drill |
| CN205129019U (en) * | 2015-09-30 | 2016-04-06 | 江苏华久特钢工具有限公司 | High speed bit |
| CN205129013U (en) * | 2015-11-02 | 2016-04-06 | 上海惠而顺精密工具有限公司 | A carbide chip dividing groove centre drill for PCB |
| CN205165990U (en) * | 2015-11-04 | 2016-04-20 | 上海惠而顺精密工具有限公司 | PCB hard alloy drill bit with diamond coating |
| CN205629474U (en) * | 2016-04-22 | 2016-10-12 | 朱益鸣 | Toper is bored |
| CN205764069U (en) * | 2016-06-28 | 2016-12-07 | 江苏天工工具有限公司 | A kind of high accuracy Double-margin twist drill |
-
2016
- 2016-12-30 CN CN201611263733.XA patent/CN106513791A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2556663C (en) * | 2004-03-17 | 2011-09-20 | Kennametal Inc. | Twist drill |
| CN2757979Y (en) * | 2004-12-31 | 2006-02-15 | 郑黄铮 | Multi-helix angle cutting tool structure |
| CN101282806A (en) * | 2005-08-02 | 2008-10-08 | 天窗工具有限公司 | Twist drill |
| WO2013129586A1 (en) * | 2012-02-28 | 2013-09-06 | 京セラ株式会社 | Drill blank, manufacturing method for drill blank, drill, and manufacturing method for drill |
| CN203936431U (en) * | 2014-06-26 | 2014-11-12 | 超美精密工业（惠州）有限公司 | A kind of diclinic rate drill point structure |
| CN204321264U (en) * | 2014-11-05 | 2015-05-13 | 昆山欧思克精密工具有限公司 | Variable helical angle titanium alloy target drill |
| CN204639247U (en) * | 2015-05-14 | 2015-09-16 | 台州百特工具有限公司 | A kind of straight shank twist drill |
| CN205129019U (en) * | 2015-09-30 | 2016-04-06 | 江苏华久特钢工具有限公司 | High speed bit |
| CN205129013U (en) * | 2015-11-02 | 2016-04-06 | 上海惠而顺精密工具有限公司 | A carbide chip dividing groove centre drill for PCB |
| CN205165990U (en) * | 2015-11-04 | 2016-04-20 | 上海惠而顺精密工具有限公司 | PCB hard alloy drill bit with diamond coating |
| CN205629474U (en) * | 2016-04-22 | 2016-10-12 | 朱益鸣 | Toper is bored |
| CN205764069U (en) * | 2016-06-28 | 2016-12-07 | 江苏天工工具有限公司 | A kind of high accuracy Double-margin twist drill |
Non-Patent Citations (1)
| Title |
|---|
| 潘旺林: "《五金实用手册》", 31 January 2014 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107127377A (en) * | 2017-05-15 | 2017-09-05 | 海安国洋机械科技有限公司 | A kind of straight sword drill bit |
| CN110802260A (en) * | 2019-11-28 | 2020-02-18 | 中国航空工业标准件制造有限责任公司 | Drill bit for processing deep hole |
| CN115090936A (en) * | 2022-07-19 | 2022-09-23 | 厦门厦芝科技工具有限公司 | A kind of drill bit with side margin cutting performance and its optimization process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170322 |
|
| RJ01 | Rejection of invention patent application after publication |