CN202212589U - Cutter for cutting titanium alloy - Google Patents
Cutter for cutting titanium alloy Download PDFInfo
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- CN202212589U CN202212589U CN2011201970064U CN201120197006U CN202212589U CN 202212589 U CN202212589 U CN 202212589U CN 2011201970064 U CN2011201970064 U CN 2011201970064U CN 201120197006 U CN201120197006 U CN 201120197006U CN 202212589 U CN202212589 U CN 202212589U
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- cutter
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- cutting edge
- rake face
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Abstract
The utility model discloses a cutter for cutting titanium alloy. Micro V-shaped groove arrays are distributed on a front cutter surface of the cutter and are located at two sides of the point of the cutter. Micro V-shaped grooves are multiple V-shaped grooves which are spacedly provided in the front cutter surface and have a height of 50-300 micrometers. The distance between the V-shaped grooves is 50-300 micrometers. The V-shaped grooves are at an angle of 50-65 DEG. An angle between the length direction of the micro V-shaped grooves and a main cutter blade is 25-45 DEG. The micro V-shaped groove arrays pass through the main cutting blade and an auxiliary cutting blade at left and right sides of the point of the cutter. The length of the micro V-shaped grooves in the main cutting blade and the auxiliary cutting blade is 6-10 millimeters. During the cutting process, the front cutter surface of a hard alloy cutter is machined to be a micro V-shaped groove array structure to replace a conventional smooth surface. Therefore, the friction of chips on the front cutter surface is reduced by means of the micro V-shaped groove array structure, so that chips can be rapidly discharged from the cutting region, thereby prolonging the service lifetime of the cutter and enhancing the machining efficiency.
Description
Technical field
The utility model relates to the cutting in manufacturing technology field and uses cutter, is specifically related to a kind of cutter that is used for the titanium alloy cutting.
Background technology
Titanium alloy has good mechanical performances such as specific strength height, hear resistance is strong, corrosion resistance is good, is used for fields such as aviation, medical device, automobile component gradually.In the titanium alloy cut, adopt the YG hard alloy cutter usually, main component is WC and Co, and cutter is made up of rake face, main back knife face and minor flank, and cutting mainly depends on point of a knife, main cutting edge and front cutting edge.
The low heat conductivity of titanium alloy material, high chemical corrosion and low elastic modulus so make cutting temperature too high, and titanium alloy workpiece is easy, and therefore, in cutting, the wearing and tearing of cutter are very fast, cause working (machining) efficiency low to cutter generation corrosion, and processing cost is high.Traditional hard cutter rake face is smooth; And the smear metal that accounts for total cutting heat 70～80% contacts with workpiece with the nearly point of a knife annex of rake face; The friction and the chemical adhesion of cause and rake face; Cause chip removal difficulty, great amount of heat can't be got rid of from cutting region fast, and this makes tool wear key factor faster.
The utility model content
The purpose of the utility model is to overcome the shortcoming of prior art; Provide a kind of rake face to have the cutter that is used for the titanium alloy cutting of little V groove array structure; The smear metal that when the titanium alloy cut, can utilize little V groove permutation structure will account for total cutting heat 70～80% is fast got rid of; Reduce cutting temperature, prolong cutter life, improve working (machining) efficiency.
The utility model processes little V groove array structure near the point of a knife of hard alloy cutter rake face; Under the situation that does not change the tool geometry size; This V groove array produces new chip removal function and heat sinking function; Can be in working angles in the cutting zone scrap fallaway and heat in metal cutting fast, reduce the wearing and tearing of cutter, improve stock-removing efficiency.The utility model adopts the fine diamond emery wheel V-arrangement tip of bronze Metal Substrate on the smooth rake face of hard alloy cutter, to process to have high-precision fine V groove array structure; Deficiencies such as this processing method is the machining mode, and the efficient that also can remedy microfabrication such as light, chemistry is low, corrosive liquid is hard to manage.
The purpose of the utility model realizes through following technical scheme:
A kind of cutter that is used for the titanium alloy cutting comprises rake face, main back knife face and minor flank, is respectively main back knife face and minor flank in the both sides of point of a knife, is rake face with main back knife face with all vertical upper horizontal face of minor flank; Wherein rake face is respectively main cutting edge and front cutting edge with the line that main back knife face and minor flank intersect; Be distributed with little V groove array on the rake face of cutter, little V groove array is positioned at the both sides of point of a knife; Many " V " shape grooves of little V groove on rake face, offering at interval, little V groove height is 50～300 microns, and the spacing of V groove is 50～300 microns, and the angle of V groove is 50～65 degree, and little V slot length direction becomes 25～45 degree with main cutting edge; Little V groove array passes main cutting edge and front cutting edge in the point of a knife left and right sides, and little V groove is 6～10 millimeters at the total length of main cutting edge and front cutting edge.
For further realizing the utility model purpose, said little V groove tip is a circular arc, and arc radius is less than 50 microns.
Said little V groove distributes about the point of a knife bilateral symmetry.
The said cutter that is used for the titanium alloy cutting is the YG hard alloy cutter, and main component is WC and Co.
The utility model compared with prior art has following advantage and beneficial effect:
(1) compares with the smooth rake face of ordinary rigid alloy cutter; Little V groove array structure of the utility model cutter rake face can produce chip removal and heat sinking function when the machining titanium alloy material; Reduce the frictional force of borings, improve cutter life and stock-removing efficiency at rake face.
(2) adopt skive V-arrangement tip can on the rake face of hard alloy cutter, carry out the machining of little V groove, compare, have advantages such as production efficiency height, processing cost are low, no unmanageable corrosive liquid with corrosion fine machining methods such as light, chemistry.
Description of drawings
The cutter structure sketch map that is used for the titanium alloy cutting of Fig. 1 little V groove for the utility model has.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Fig. 3 carries out little V trough cutting machine tool machining principle figure for adopting skive V-arrangement wedge angle.
The specific embodiment
For better understanding the utility model, below in conjunction with accompanying drawing and embodiment the utility model is done further explanation, but the utility model requires the scope of protection to be not limited to the scope that embodiment representes.
Like Fig. 1, shown in 2; The cutter that is used for the titanium alloy cutting that has little V groove comprises rake face 1, main back knife face 2 and minor flank 3; Its shape and common hard alloy cutter just as; Being respectively main back knife face 2 and minor flank 3 in the both sides of point of a knife 4, is rake face 1 with main back knife face 2 with all vertical upper horizontal face of minor flank 3; Wherein rake face 1 is respectively main cutting edge 5 and front cutting edge 6 with main back knife face 2 and the line that minor flank 3 intersects; Little V groove array 7 is distributed on the rake face 1 of cutter, and symmetry is positioned at the both sides of point of a knife 4; Many " V " shape grooves of little V groove on rake face 1, offering at interval, little V groove height h is 50～300 microns, and the spacing of V groove is 50～300 microns, and the angle of V groove is 50～65 degree, and V groove tip is a circular arc, arc radius is less than 50 microns; Little V slot length direction with become with main cutting edge 25～45 the degree; Little V groove array 7 is that main cutting edge 5 and front cutting edge 6 are passed in the left and right sides, center with point of a knife 4, and little V groove is 6～10 millimeters at the total length of main cutting edge 5 and front cutting edge 6; Little V groove preferably distributes about point of a knife 4 bilateral symmetry.The cutter that is used for the titanium alloy cutting that has little V groove is the YG hard alloy cutter, and main component is WC and Co.Cutting mainly utilizes point of a knife 4, main cutting edge 5 and front cutting edge 6.
As shown in Figure 2, the little V groove in the V groove array 7 on the cutter rake face defines as follows: little V groove height h is 8 distances to rake face 1 from V trench bottom tip; The spacing f of little V groove is the distance between adjacent two " V " shape groove tip; The angle [alpha] of little V groove is the angle of 9 of " V " shape groove two sides; Little V groove most advanced and sophisticated 8 approximate circular arcs, its arc radius is defined as little V groove tip radius.The length of little V groove and the rear end that extends to rake face from main cutting edge 5 and front cutting edge 6.
When on adopting rake face 1, having the cutter machining titanium alloy of little V groove array structure; Because accounting for the smear metal of heat in metal cutting ratio 70～80% contacts with near point of a knife 4 rake faces 1; Acutely rub with rake face, make that the cutter rake wear is very fast, and smear metal can not be got rid of fast.Therefore, produce little V groove array at point of a knife 4 annexes of rake face 1, scrap fallaway is taken away cutting edge fast, prolongs cutter life.
As shown in Figure 3, have the manufacturing approach of the cutter that is used for titanium alloy cutting of little V groove, comprise the steps:
(1) 600-1200 order skive of bronze Metal Substrate 10 and GC grinding stone are carried out numerical control to mill, finishing touch forming V-shape most advanced and sophisticated 11 and reach the effect of dressing simultaneously, its V-arrangement tip angle is 50～65 degree, 5～7 millimeters of height.
(2) be that straight reciprocating motion is done along the straight line moving track 12 that is parallel to rake face in 2000～4000 rev/mins skive V-arrangement tip on the rake face 1 of hard alloy cutter level with rotating speed; Feed speed vf is the 100-800 mm/min; Each feeding depth α is 1～5 micron, highly is little V groove of 50～300 microns up to processing.
(3) repeat to process little V groove with level interval f, little V groove is cut and is worn major cutting edge 5 and auxiliary-blade 6, finally forms high-precision fine V groove array 7; Little V groove height h is 50～300 microns; The angle [alpha] of little V groove is 35～65 degree, and the spacing f of little V groove is 40～300 microns, and the most advanced and sophisticated arc radius of little V groove is less than 50 microns; The angle of fine V groove array direction and main cutting edge 5 is 25～45 degree, and fine V groove array amplitude is 6～10 millimeters.
On the CNC precision grinder, adopt 600 order skives of 150 millimeters of diameters, finishing earlier is angled the V-arrangement wedge angle of 60.3 degree, and guarantee the fine diamond abrasive particle enough go out sword.The arc radius of emery wheel V-arrangement wedge angle is 28 microns.As shown in Figure 2, the material of cutter is carbide alloy YG 8 (H RC80-90), in the manufacturing of little V groove function surface of cutter; The rotation speed n of skive 11=3000 rev/min; Feed speed vf is 100 millimeters/minute, and the V-arrangement wedge angle feeding depth of skive is 3 microns, 200 microns of the accumulative total excision degree of depth of each V groove; Zero grinding 2 times, with BM2 as grinding fluid.As shown in Figure 1,5 one-tenth 30 degree of the V groove array direction and the main cutting edge of processing angle, the V angle of the v-groove is 61.5 degree, the most advanced and sophisticated arc radius of V groove is 35 microns.
In the dried cut of titanium alloy (Ti-6Al-4V), adopt the CNC numerically controlled lathe, lathe spindle rotation speed n=2000 rev/min; Amount of feeding f=0.14 millimeter/commentaries on classics, feeding depth are 1.0 millimeters, and the hard alloy cutter of traditional smooth surface can produce a large amount of Mars and burn red part; Smear metal is continuous volume bits, and point of a knife has and bursts apart, and the cutter rake face is respectively 1.76 and 1.17 square millimeters with the wear area of back knife face; But, adopt rake face to have the hard alloy cutter of little V groove function surface to add man-hour, do not produce Mars and burn red phenomenon; The tip phenomenon of not bursting apart; Smear metal is chip breaking, and the rake face of cutter is respectively 1.49 and 0.99 square millimeters with the wear area of back knife face, compares the tool wear area that titanium alloy cuts that is used for that present embodiment has little V groove with the cutter of smooth rake face and has reduced 15.3% and 15.4% respectively.
When adopting the ordinary rigid alloy cutter that titanium alloy is cut, the smear metal that accounts for heat in metal cutting ratio 70～80% contacts with the smooth rake face of hard alloy cutter, produces acutely friction; Make that the cutter rake wear is very fast; And smear metal can not be got rid of fast, makes processing heat be difficult to discharge, and also makes titanium alloy workpiece more easily and cutter generation chemical attack; Cause tool wear very fast, working (machining) efficiency is lower.The utility model processes little V groove array structure on the rake face of hard alloy cutter; Replace traditional smooth surface, utilize little V groove array structure to reduce the frictional force of smear metal, smear metal is discharged in cutting zone fast rake face; Prolong cutter life, improve working (machining) efficiency.
Claims (3)
1. a cutter that is used for the titanium alloy cutting comprises rake face, main back knife face and minor flank, and the both sides of point of a knife are respectively main back knife face and minor flank, is rake face with main back knife face with all vertical upper horizontal face of minor flank; Wherein rake face is respectively main cutting edge and front cutting edge with the line that main back knife face and minor flank intersect; It is characterized in that: be distributed with little V groove array on the rake face of cutter, little V groove array symmetry is positioned at the both sides of point of a knife; Many " V " shape grooves of little V groove on rake face, offering at interval, little V groove height is 50～300 microns, and the spacing of V groove is 50～300 microns, and the angle of V groove is 50～65 degree, and little V slot length direction becomes 25～45 degree with main cutting edge; Little V groove array passes main cutting edge and front cutting edge in the point of a knife left and right sides, and little V groove is respectively 6～10 millimeters at the total length of main cutting edge and front cutting edge.
2. the cutter that is used for the titanium alloy cutting according to claim 1 is characterized in that: said little V groove is most advanced and sophisticated to be circular arc, and arc radius is less than 50 microns.
3. the cutter that is used for the titanium alloy cutting according to claim 1, it is characterized in that: said little V groove distributes about the point of a knife bilateral symmetry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201970064U CN202212589U (en) | 2011-06-13 | 2011-06-13 | Cutter for cutting titanium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201970064U CN202212589U (en) | 2011-06-13 | 2011-06-13 | Cutter for cutting titanium alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202212589U true CN202212589U (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201970064U Expired - Lifetime CN202212589U (en) | 2011-06-13 | 2011-06-13 | Cutter for cutting titanium alloy |
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| CN (1) | CN202212589U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228998A (en) * | 2011-06-13 | 2011-11-02 | 华南理工大学 | Titanium alloy cutter for cutting and manufacturing method thereof |
| CN107096931A (en) * | 2017-05-18 | 2017-08-29 | 贵州大学 | A kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4 |
| CN109332766A (en) * | 2018-10-31 | 2019-02-15 | 湖南工学院 | Deep hole high-efficiency cutting tool for processing and deep hole highly-efficient processing system in a kind of oil pump casing |
-
2011
- 2011-06-13 CN CN2011201970064U patent/CN202212589U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102228998A (en) * | 2011-06-13 | 2011-11-02 | 华南理工大学 | Titanium alloy cutter for cutting and manufacturing method thereof |
| CN107096931A (en) * | 2017-05-18 | 2017-08-29 | 贵州大学 | A kind of hard alloy microflute lathe tool for cutting titanium alloy TC 4 |
| CN109332766A (en) * | 2018-10-31 | 2019-02-15 | 湖南工学院 | Deep hole high-efficiency cutting tool for processing and deep hole highly-efficient processing system in a kind of oil pump casing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120509 Effective date of abandoning: 20130703 |
|
| RGAV | Abandon patent right to avoid regrant |