CN2046414U - Stainless steel deep hole drill - Google Patents
Stainless steel deep hole drill Download PDFInfo
- Publication number
- CN2046414U CN2046414U CN 89203350 CN89203350U CN2046414U CN 2046414 U CN2046414 U CN 2046414U CN 89203350 CN89203350 CN 89203350 CN 89203350 U CN89203350 U CN 89203350U CN 2046414 U CN2046414 U CN 2046414U
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- sword
- deep hole
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Abstract
The utility model provides a cemented carbide jet drill used for machining a deep hole on the body of stainless steel. The center edge, the middle edge and the side edge of the cemented carbide jet drill used for machining the deep hole on the body of the stainless steel use respectively ordinary cemented carbide blades of different material and mechanical properties, provided with chip breakers of different geometric sizes; the utility model improves integrative service performance of the cemented carbide jet drill used for machining the deep hole on the body of the stainless steel, solves the difficulty of uneven abrasion of the chip breakers and a drill of a stainless steel deep hole drilling technology, and reduces fabricating and use cost. The utility model can reach the following guarantee values: life time is 8 m before regrinding once, a drilling depth once is the diameter of the drill *100, surface roughness reaches the N9-N8 level of the ISO standard, and verticality is less than 0.25 mm/m.
Description
The utility model belongs to metal processing cutting tool, especially for the carbide alloy ejector drill of deep hole processing on body of stainless steel.
Depth drill is because drill change is dark, and its major technique difficulty is the aggravation of chip removal and drill bit uneven wear.Comparatively advanced at present depth drill technology is to adopt the carbide alloy ejector drill, this drill bit is made up of the cutting edge of bit body and bit body end, cutting edge generally comprises the carbide chip more than three, along bit face centerline direction dislocation overlappingly be arranged in center sword, middle cutter and limit sword, cutting edge covers whole cutting face in drilling process, the cutting fluid that drilling cuttings pumps into by high pressure is by the endoporus discharge of drill bit.Use ordinary rigid alloy ejector drill deep hole drilling on common steel alloy, carbon steel body, generally can obtain satisfied chip breaking effect, but because stainless steel has more comprehensive mechanical effect, in its drilling process, chip breaking is difficulty more, the uneven wear of drill bit is also even more serious, and ordinary rigid alloy ejector drill can't adapt to its requirement.External mainly is at present to overcome above technical difficulty by selecting the better carbide cutter tool sheet material of comprehensive mechanical performance to make the special-purpose deep hole drill of stainless steel, has so also just improved the manufacturing cost and the use cost of drill bit greatly.Domestic at present owing to lack the carbide cutter tool sheet material that is suitable for, still there are not the series of products of the special-purpose deep hole drill of stainless steel.
The purpose of this utility model is to provide a kind of stainless steel deep hole drill that uses ordinary rigid alloy blade material to make.
The purpose of this utility model is achieved in that the ordinary rigid alloy blade often has single better mechanical property, the relatively poor characteristics of comprehensive mechanical performance, but analyzing drilling process is not difficult to find out, drill bit passes through swivel feeding, the linear velocity of drill bit constantly decays to central point from marginal point, it is the linear velocity maximum of marginal point, the linear velocity of central point equals zero, and for drill bit each the point, its amount of feeding all is identical.Therefore, the cutting resistance maximum that bit central point is suffered, and the suffered frictional resistance maximum of drill margin point, this is the easy explosion of center sword and limit sword main cause easy to wear, because load is inhomogeneous, chip breaking effect with the limit sword of identical geometric parameter and center sword also must be inconsistent, thereby aggravated the uneven wear of drill bit.Stainless steel deep hole drill of the present utility model is a kind of carbide alloy ejector drill, it is at the characteristics of stainless steel and the different stressing conditions in the drill bit drilling process, on same bit body, use ordinary rigid alloy blade to make cutting edge with different mechanical performances, the center sword is selected the higher blade material of Material Strength for use, limit sword and middle cutter are selected the higher blade material of material hardness for use, each blade uses the chip-breaker of different geometrical size, the relative broad of chip-breaker width of center sword, the chip-breaker width relative narrower of middle cutter and limit sword.
The material of each blade and physical dimension satisfy following relational expression:
Material Strength: center sword＞middle cutter 〉=limit sword;
Material hardness: limit sword 〉=middle cutter＞center sword;
Chip-breaker width: center sword＞middle cutter＞limit sword.
In the actual drilling process, select rational cutting data, the center sword of drill bit has enough intensity to overcome cutting resistance, the anti-wear performance of middle cutter and limit sword also has relative raising, the difference of each chip-breaker size makes each blade obtain the more consistent chip breaking effect that meets the depth drill specification requirement, and has improved the abrasion condition of blade, make each blade have more even well-regulated wearing and tearing, thus drilling stainless steel not difficultly.
The utility model is owing to adopted above technical scheme, improved the comprehensive serviceability of drill bit, the chip breaking of stainless steel depth drill technology and the difficulty of drill bit uneven wear have been overcome, make the special-purpose deep hole drill of stainless steel with the ordinary rigid alloy blade, thereby greatly reduced the manufacturing cost and the use cost of drill bit.Stainless steel deep hole drill of the present utility model can reach following guarantee value through on probation: the life-span is 8 meters before once refacing, but once drilling depth is bit diameter * 100, and surface roughness reaches iso standard N9～N8 level, perpendicularity＜0.25 millimeter/meter.
Be described further below in conjunction with drawings and Examples:
Fig. 1 is the structural representation of the utility model embodiment (1).
Fig. 2 is the structural representation of the utility model embodiment (2).
With reference to Fig. 1, the center sword (3) of the stainless steel deep hole drill of present embodiment adopts anti-angle of throat sheet, the radial load when its effect is the balance drilling.Bit body (1) adopts the common medium-carbon steel material to make, and is useful on the endoporus of chip removal in the body, and center sword (3) adopts YG serial carbide alloy blade, and middle cutter (2) and limit sword (4) adopt YT serial carbide alloy blade.Center sword (3), middle cutter (2) and limit sword (4) are welded on the end face of bit body (1), along the overlapping arrangement that misplaces of bit face centerline direction.The beguine of each blade chip-breaker width is selected according to the size of bit diameter, its ratio is the center sword: middle cutter: limit sword=8～12:7～11:6～10, and be satisfied with the relational expression of the chip-breaker width of center sword＞middle cutter＞limit sword, the degree of depth of each blade chip-breaker is 1:3～5 with the span of the ratio of width, to obtain best chip breaking effect.The bit diameter that present embodiment provides is φ 65, the size of each blade chip-breaker (degree of depth * width) is 0.5 * 2 millimeter of center sword, 0.45 * 1.75 millimeter of middle cutter, 0.4 * 1.5 millimeter of limit sword, other physical dimension design alternative routinely of each blade, cutting data is: 80 meters/minute of cutting speeds, 0.22 millimeter/commentaries on classics of the amount of feeding.
With reference to Fig. 2, the center sword (3) of the stainless steel deep hole drill of present embodiment adopts positive angle of throat sheet.The material selection and the installation method of each blade on bit body of bit body (1) and each blade are all identical with embodiment (1).1～2 ° of the point angle that the drift angle that the chip breaking notch of center sword (3), middle cutter (2) and limit sword (4) constitutes constitutes greater than each blade cutting edge, its angle value is selected according to the size of bit diameter, and the degree of depth of each blade chip-breaker is 1:3～5 with the ratio of width.The bit diameter that present embodiment provides is φ 65, and point angle is 140 °, and the chip-breaker drift angle is 142 °, and other geometric parameter of each blade designs routinely, and cutting data is: 80 meters/minute of cutting speeds, 0.18 millimeter/commentaries on classics of the amount of feeding.
Claims (4)
1, a kind of stainless steel deep hole drill, the carbide alloy ejector drill of deep hole processing on body of stainless steel particularly, comprise bit body (1) and be installed in center sword (3) on bit body (1) end face, middle cutter (2) and limit sword (4), center sword (3), middle cutter (2) and limit sword (4) are along the overlapping arrangement that misplaces of bit face centerline direction, it is characterized in that center sword (3), middle cutter (2) uses the different carbide chip of material mechanical performance respectively with limit sword (4), and chip-breaker with different geometrical size, it is center sword＞middle cutter 〉=limit sword that the blade Material Strength is closed, blade material hardness relation is limit sword 〉=middle cutter＞center sword, and blade chip-breaker width relation is center sword＞middle cutter＞limit sword.
2, deep hole drill according to claim 1 is characterized in that center sword (3) adopts anti-angle of throat sheet, and the ratio of the chip-breaker width of center sword (3), middle cutter (2), limit sword (4) is 8～12:7～11:6～10.
3, deep hole drill according to claim 1 is characterized in that center sword (3) adopts positive angle of throat sheet, 1～2 ° of the point angle that the chip-breaker drift angle that each blade chip breaking notch constitutes constitutes greater than each blade cutting edge.
4, according to claim 2 or 3 described deep hole drills, the degree of depth that it is characterized in that each blade chip-breaker is 1:3～5 with the ratio of width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89203350 CN2046414U (en) | 1989-03-24 | 1989-03-24 | Stainless steel deep hole drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89203350 CN2046414U (en) | 1989-03-24 | 1989-03-24 | Stainless steel deep hole drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2046414U true CN2046414U (en) | 1989-10-25 |
Family
ID=4860919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89203350 Withdrawn CN2046414U (en) | 1989-03-24 | 1989-03-24 | Stainless steel deep hole drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2046414U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047972C (en) * | 1993-05-20 | 2000-01-05 | 伊斯卡有限公司 | An indexable-insert drilling tool |
| CN1065795C (en) * | 1995-06-23 | 2001-05-16 | 奥古斯特·贝克有限公司 | Drilling tool |
| CN1071610C (en) * | 1995-06-23 | 2001-09-26 | 奥古斯特·贝克有限公司 | Drilling tool |
| CN102672246A (en) * | 2012-05-23 | 2012-09-19 | 上海嘉仕久企业发展有限公司 | U-shaped driller for drilling multilayer plate |
| CN103737071A (en) * | 2014-01-10 | 2014-04-23 | 宁波市荣科迈特数控刀具有限公司 | Deep hole machining ejector drill |
| CN104148709A (en) * | 2014-06-30 | 2014-11-19 | 江阴乐高能源装备有限公司 | Trepanning tool |
| CN108098024A (en) * | 2017-12-18 | 2018-06-01 | 中国航发贵州黎阳航空动力有限公司 | A kind of deep hole processing method in High-temperature resistant alloy material |
| CN108422019A (en) * | 2018-04-25 | 2018-08-21 | 湖北鑫运祥科技发展有限公司 | Three sword detachable drill bits of one kind and production method |
-
1989
- 1989-03-24 CN CN 89203350 patent/CN2046414U/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1047972C (en) * | 1993-05-20 | 2000-01-05 | 伊斯卡有限公司 | An indexable-insert drilling tool |
| CN1065795C (en) * | 1995-06-23 | 2001-05-16 | 奥古斯特·贝克有限公司 | Drilling tool |
| CN1071610C (en) * | 1995-06-23 | 2001-09-26 | 奥古斯特·贝克有限公司 | Drilling tool |
| CN102672246A (en) * | 2012-05-23 | 2012-09-19 | 上海嘉仕久企业发展有限公司 | U-shaped driller for drilling multilayer plate |
| CN103737071A (en) * | 2014-01-10 | 2014-04-23 | 宁波市荣科迈特数控刀具有限公司 | Deep hole machining ejector drill |
| CN103737071B (en) * | 2014-01-10 | 2017-08-08 | 宁波市荣科迈特数控刀具有限公司 | A kind of deep hole machining spray, which is inhaled, bores |
| CN104148709A (en) * | 2014-06-30 | 2014-11-19 | 江阴乐高能源装备有限公司 | Trepanning tool |
| CN108098024A (en) * | 2017-12-18 | 2018-06-01 | 中国航发贵州黎阳航空动力有限公司 | A kind of deep hole processing method in High-temperature resistant alloy material |
| CN108422019A (en) * | 2018-04-25 | 2018-08-21 | 湖北鑫运祥科技发展有限公司 | Three sword detachable drill bits of one kind and production method |
| CN108422019B (en) * | 2018-04-25 | 2023-09-29 | 湖北鑫运祥科技发展有限公司 | Three-blade split drill bit and manufacturing method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |