CN1539586A - Position trunable quadrate cutter blade in 3D flute profile - Google Patents
Position trunable quadrate cutter blade in 3D flute profile Download PDFInfo
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- CN1539586A CN1539586A CNA2003101076601A CN200310107660A CN1539586A CN 1539586 A CN1539586 A CN 1539586A CN A2003101076601 A CNA2003101076601 A CN A2003101076601A CN 200310107660 A CN200310107660 A CN 200310107660A CN 1539586 A CN1539586 A CN 1539586A
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- cutter blade
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- main cutting
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Abstract
A turnable square milling tool with 3D recess has a main body with main cutting edges having front angle and back angle. Said main cutting edge is a cosine one. Its tool tip has a transitional trimming edge with zero-degree chamfer. Its advantages are low cutting stress and cutting heat, easy control of cuttings flow, and high strength.
Description
Technical field: the present invention relates to the improvement of square cutter blade structure.
Background technology: at present, the blade of using in milling cutter generally adopts the cutter blade of plane face both at home and abroad.Also has a kind of rectangle cutter blade, it has the flute profile of zigzag cutting edge, and this cutter blade has bifurcating chip action, but its tooth bottom easily produces the concentrated micro-crack that reaches of stress in compacting production and in using, weakened the intensity of cutting edge and blade, crown portion is easy to wearing and tearing again.Because the cutter blade of zigzag cutting edge is lower service life, so cause the integrated cost of Milling Process higher.
Summary of the invention: the object of the present invention is to provide a kind of three-dimensional groove-shaped indexable square cutter blade, it has rational in infrastructure, and cutting effect is good, the characteristics of long service life.The present invention is made up of cutter blade 1; The main cutting edge of cutter blade 1 is provided with positive rake angle 2, the main cutting edge of cutter blade 1 is a cosine waveform sword 3, the cutter blade 1 in positive rake angle 2 outsides is main cutting edge relief angles 4, the point of a knife place of cutter blade 1 is provided with transition, wiper edges 5, the outer, upper end of the transition of point of a knife place, wiper edges 5 is zero degree chamfered edges 6, the cutter blade 1 of zero degree chamfered edge 6 inboards is provided with point of a knife positive rake angle 7, and the cutter blade 1 in zero degree chamfered edge 6 outsides is a point of a knife relief angle 8.The cutter blade of cutter blade of the present invention and traditional plane face can find out significantly that the cutting force of plane face blade is big under identical machining condition, and the cosine waveform blade is at back engagement of the cutting edge a in the contrast experiment of Milling Force
pDuring 〉=2.5mm, cutting force is significantly less than the plane face cutter blade, and its axial cutting force is littler, matches with the working angles characteristics of cosine waveform sword itself.The bits shape of milling is under equal machining condition, and cosine waveform sword bits shape be more satisfactory bits shape, and the bits shape of plane face blade all is the C shape volume basically for the weak point helical coil, and the bits of this bits shape disorderly collapse easily, are not easy to clear up and sweep.By the wearing and tearing contrast experiment of milling, under the identical as can be seen machining condition, when processing stainless steel and steel alloy, the attrition value minimum of cosine waveform sword, and the attrition value of plane face blade is bigger.The present invention has changed traditional structural design, has improved the distribution situation and the equilibrium of forces of cutting force, has strengthened dividing the bits effect, has reduced cutting force, has controlled the outflow of smear metal.Arc transition, wiper edges place at blade add chamfered edge, have improved the resisting breakage ability of blade.Have rational in infrastructurely, cutting effect is good, the advantage of long service life.
Description of drawings: Fig. 1 is an overall structure schematic diagram of the present invention, and Fig. 2 is the A-A cutaway view of Fig. 1, and Fig. 3 is the B-B cutaway view of Fig. 1, Fig. 4 is that the C of Fig. 1 is to view, Fig. 5 is the structural representation of the specific embodiment two, and Fig. 6 is the structural representation of the specific embodiment three, and Fig. 7 is that the D of Fig. 6 is to view.
The specific embodiment one: (seeing Fig. 1 to Fig. 4) present embodiment is made up of cutter blade 1; The main cutting edge of cutter blade 1 is provided with positive rake angle 2, the main cutting edge of cutter blade 1 is a cosine waveform sword 3, the cutter blade 1 in positive rake angle 2 outsides is main cutting edge relief angles 4, the point of a knife place of cutter blade 1 is provided with transition, wiper edges 5, the outer, upper end of the transition of point of a knife place, wiper edges 5 is zero degree chamfered edges 6, the cutter blade 1 of zero degree chamfered edge 6 inboards is provided with point of a knife positive rake angle 7, and the cutter blade 1 in zero degree chamfered edge 6 outsides is a point of a knife relief angle 8.The radius R of transition, wiper edges 5=1～4mm.The angle γ of main cutting edge positive rake angle 2
0=0 °, 5 ° or 10 °; The angle [alpha] of main cutting edge relief angle 4
0=7 °; The angle γ of point of a knife positive rake angle 7
0=5 °; The angle [alpha] of point of a knife relief angle 8
0=7 °; Zero degree chamfered edge 6 width br1 are 0.1～0.4mm.
The specific embodiment two: the difference of the (see figure 5) present embodiment and the specific embodiment one is, has fixing hole 9 in the center of cutter blade 1, and other composition is identical with the specific embodiment one with annexation.
The specific embodiment three: the difference of (seeing Fig. 6, Fig. 7) present embodiment and the specific embodiment one is, cosine waveform main cutting edge 3 is replaced by straightsided shape main cutting edge 10, zero degree chamfered edge 6 is replaced by zero degree chain-wales 11, is connected by transitional edges 12 between zero degree chain-wales 11 and the straightsided shape main cutting edge 10.Other composition is identical with the specific embodiment one with annexation.
Present embodiment has certain cutting edge inclination again because blade had both had bigger anterior angle, and workpiece is cut, cut out to cutting edge gradually during cutting, working angles is steady, vibrates for a short time, and the detrusion that the cutting lay metal takes place in the working angles is little, it is little to produce the negative trend of shearing, and has improved chip-flowing.The big anterior angle of blade reduces the metal cutting distortion, can significantly reduce Milling Force and milling heat.Because point of a knife place stressing conditions is more abominable during milling, and contact workpiece at first, it is bigger to be hit, cracky, so designed a chain-wales at the point of a knife place, making point of a knife place anterior angle is 0 °, be connected with a transitional edges between chain-wales and main cutting edge, strengthened point of a knife intensity.The high rake cutter sheet when cutting stainless steel material, cut brisk, the chip removal smoothness, cutting temperature is low, vibrates for a short time, improves 2 times than used in the past plane face cutter blade cutter life, and the machining accuracy height.The result of stress field and temperature field analysis compares: stress ratio cosine waveform angle of throat sheet and big anterior angle blade during the plane face blade cut are big, and point of a knife and the cutting edge place stress maximum of participating in cutting, the stress minimum of high rake cutter sheet, its maximum load mainly is distributed on the sharper cutting edge.Plane face cutter blade cutting region maximum temperature concentrates on point of a knife and main cutting edge place, and is the highest among the three, and there are bigger thermograde in cutter, bits near the contact zone; High rake cutter sheet temperature is minimum, and the thermal stress variation that cuts out generation is little, and therefore, the tool failure degree that is caused by thermal stress is little.Cosine waveform blade milling cutter sheet is because the existence of curved surface rake face flute profile, and it is big to contact area between smear metal and preceding tangent plane, and its maximum temperature is less than the maximum temperature of plane face cutter blade, and the cutting temperature gradient is little.It is fine that the result of analysis on Stress Field and actual wear, damaged situation are coincide.
Claims (9)
1, three-dimensional groove-shaped indexable square cutter blade, it is made up of cutter blade (1); The main cutting edge that it is characterized in that cutter blade (1) is provided with positive rake angle (2), the main cutting edge of cutter blade (1) is cosine waveform sword (3), the cutter blade (1) in positive rake angle (2) outside is main cutting edge relief angle (4), the point of a knife place of cutter blade (1) is provided with transition, wiper edges (5), the outer, upper end of the transition of point of a knife place, wiper edges (5) is zero degree chamfered edge (6), the inboard cutter blade (1) of zero degree chamfered edge (6) is provided with point of a knife positive rake angle (7), and the cutter blade (1) in zero degree chamfered edge (6) outside is point of a knife relief angle (8).
2, three-dimensional groove-shaped indexable square cutter blade according to claim 1 is characterized in that the radius R=1～4mm of transition, wiper edges (5).
3, three-dimensional groove-shaped indexable square cutter blade according to claim 1 is characterized in that the angle γ of main cutting edge positive rake angle (2)
0=0 °, 5 ° or 10 °.
4, three-dimensional groove-shaped indexable square cutter blade according to claim 1 is characterized in that the angle [alpha] of main cutting edge relief angle (4)
0=7 °.
5, three-dimensional groove-shaped indexable square cutter blade according to claim 1 is characterized in that the angle γ of point of a knife positive rake angle (7)
0=5 °.
6, three-dimensional groove-shaped indexable square cutter blade according to claim 1 is characterized in that the angle [alpha] of point of a knife relief angle (8)
0=7 °.
7, three-dimensional groove-shaped indexable square cutter blade according to claim 1 is characterized in that zero degree chamfered edge (6) width br1 is 0.1～0.4mm.
8, three-dimensional groove-shaped indexable square cutter blade according to claim 1 is characterized in that having screw fixed hole (9) in the center of cutter blade (1).
9, three-dimensional groove-shaped indexable square cutter blade according to claim 1, it is characterized in that cosine waveform main cutting (3) replaced by straightsided shape main cutting edge (10), zero degree chamfered edge (6) is replaced by zero degree chain-wales (11), is connected by transitional edges (12) between zero degree chain-wales (11) and the straightsided shape main cutting edge (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101076601A CN1539586A (en) | 2003-11-04 | 2003-11-04 | Position trunable quadrate cutter blade in 3D flute profile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101076601A CN1539586A (en) | 2003-11-04 | 2003-11-04 | Position trunable quadrate cutter blade in 3D flute profile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1539586A true CN1539586A (en) | 2004-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2003101076601A Pending CN1539586A (en) | 2003-11-04 | 2003-11-04 | Position trunable quadrate cutter blade in 3D flute profile |
Country Status (1)
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| CN (1) | CN1539586A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475827A (en) * | 2014-11-20 | 2015-04-01 | 厦门金鹭特种合金有限公司 | Special blade for laying drilling of four fist-shaped edges |
| CN110860723A (en) * | 2019-12-05 | 2020-03-06 | 株洲钻石切削刀具股份有限公司 | Cutting blade for hole machining |
-
2003
- 2003-11-04 CN CNA2003101076601A patent/CN1539586A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475827A (en) * | 2014-11-20 | 2015-04-01 | 厦门金鹭特种合金有限公司 | Special blade for laying drilling of four fist-shaped edges |
| CN110860723A (en) * | 2019-12-05 | 2020-03-06 | 株洲钻石切削刀具股份有限公司 | Cutting blade for hole machining |
| CN110860723B (en) * | 2019-12-05 | 2021-01-29 | 株洲钻石切削刀具股份有限公司 | Cutting blade for hole machining |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |