CN104708090A - Milling method for high-speed steel roller - Google Patents
Milling method for high-speed steel roller Download PDFInfo
- Publication number
- CN104708090A CN104708090A CN201510077976.3A CN201510077976A CN104708090A CN 104708090 A CN104708090 A CN 104708090A CN 201510077976 A CN201510077976 A CN 201510077976A CN 104708090 A CN104708090 A CN 104708090A
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- milling
- speed steel
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- cutting
- speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C5/00—Milling-cutters
- B23C5/02—Milling-cutters characterised by the shape of the cutter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C2210/00—Details of milling cutters
- B23C2210/04—Angles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The invention discloses a milling method for a high-speed steel roller. The milling method comprises a rough milling procedure and a finish milling procedure. A machine-clamped alloy cutting tool is used for milling the high-speed steel roller, wherein a chip blocking table protruding by 1.2 to 1.8mm is arranged on the tool surface of the machine-clamped cutting tool, and the tool cutting edge angle of the cutting tool is 82 degrees; cutting parameters of the rough milling procedure comprise the linear speed Vc of 10 to 12 m/s, the bite f of 2 to 3 mm and the feeding speed ap of 5 to 10 mm/min; the cutting parameters of the finish milling procedure comprise the linear speed Vc of 14 to 18 m/s, the bite f of 1 to 2 mm and the feeding speed ap of 0.1 to 1 mm/min. According to the method, the milling efficiency of the high-speed steel roller can be improved, abrasion and damage to the cutting tool can be reduced, tool replacement and sharpening time can be greatly shortened, the durability of a blade is improved by 50 percent, and the problem of hidden dangers of safety production and field environment management are completely solved.
Description
Technical field
The present invention relates to a kind of alloy cutter for milling high-speed steel roll and milling process method, belong to Machine Design and maintenance technique field.
Background technology
In recent years along with the change of the demand in market, various new roller material is constantly weeded out the old and bring forth the new, and forging high-speed steel material roll also arises at the historic moment.The application of high-speed steel roll is the important component part of modern Rolling production development, is the another major transformation in development of iron & steel industry history after microalloying, Controlled Rolling And Controlled Cooling.High-speed steel roll, is also called high carbon high-speed steel composite roll, and the working layer of roll adopts high carbon high-speed steel, core material many employings spheroidal graphite cast-iron of roll.Containing alloying elements such as a large amount of V, W, Cr, Mo, Nb in high-speed steel roll, there is higher normal temperature hardness (HS82 ~ 90), there is good high temperature red hardness feature simultaneously, still more than HS78 can be ensured more than 500 DEG C, therefore there is excellent high temperature abrasion resistance, be widely used in Rolling production at present.Replace ferrosteel roll, high-chromium iron-cast roller, high-nickel-chromium molybdenum infinitely chilled roll and Needle-like ductile iron roll with high-speed steel roll, for raising amount of rolling, prolongation roll change cycle, there is good effect.
In the preparation process of high-speed steel roll, because high-speed steel roll itself has high rigidity, high tenacity and high-wearing feature, and it requires the pre-allowance of larger processing in heat treatment process, and therefore extremely difficulty carries out Milling Process.If carry out Milling Process by conventional tool, milling process can produce very high heat, and the cutting edge wearing and tearing of cutter are very fast, easily make alloy cutter burst apart, even produce knife phenomenon, cause quality accident, and the loss of cutter is fast, the life-span is low; And the roller surface quality through conventional tool Milling Process is poor, and then have impact on the serviceability of high-speed steel roll.Because conventional tool limits by the geometric angle of cutter own and material, have in the high-speed steel roll process of high rigidity, high tenacity in processing and there is chip breaking difficulty, cutting edge roundness quick abrasion, point of a knife burst apart phenomenon, cause working (machining) efficiency low.
Summary of the invention
The technical issues that need to address of the present invention are to provide a kind of alloy cutter for milling high-speed steel roll and method for milling.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A method for milling for high-speed steel roll, comprise rough mill, finish-milling operation, employing machine folder alloy cutter carries out milling to high-speed steel roll, and the knife face of described mechanical clamped cutting tool is provided with the gear bits platform of protruding 1.2 ~ 1.8mm, cutter tool cutting edge angle is 82 °;
The cutting parameter rough milling operation is: linear velocity Vc=10-12m/s, bite f=2-3mm, feed speed ap=5-10mm/min, and the cutting parameter of finish-milling operation is: linear velocity Vc=14-18m/s, bite f=1-2mm, feed speed ap=0.1-1mm/min.
Further improvement of the present invention is: flat allowance 1mm, keyway allowance 1mm after rough milling operation.
Further improvement of the present invention is: the height of described gear bits platform is 1.5mm, and cutting edge is 1mm to the distance of gear bits platform, and the angle of gear bits platform and vertical direction is 56 °.
Owing to have employed technique scheme, the technological progress acquired by the present invention is:
Adopt method of the present invention can improve the efficiency of milling high-speed steel roll, reduce wearing and tearing and the damage of cutter.The present invention is by design gear bits platform, change to tool geometry angle and material, make that the roller surface after milling is smooth, turning speed is fast, and cutting edge roundness not easy to wear, burst apart, the life-span of turning cutting tool singly can process 1.2 rolls cutter by original often tool sharpening 0.8 roll being brought up to, and significantly reduces the loss of cutter.Chip breaking problem is difficult to when adopting method of the present invention to solve high-speed steel roll milling; save a large amount of tool changing, the sharpening time (often props up the original at least tool changing of roll 4 times; reconditioning cutting edge 2 times; save time be no less than 40 minutes /); adopt method of the present invention no longer must shut down removal because iron filings are wound around cutter at milling process and twine bits; blade durability improves 50%, completely solves the hidden danger of safety in production, site environment management.Adopt method of the present invention to add man-hour, the continuous length of the iron filings milled out can not more than 20mm.
The present invention is by being optimized processing and milling parameter, and make the milling operation working (machining) efficiency in forging high-speed steel roll process improve more than 50%, the time processing qualification rate of roll product reaches 100%.
Accompanying drawing explanation
Fig. 1 is the plan structure schematic diagram of cutter used in the present invention;
Fig. 2 is the sectional view of cutter used in the present invention;
In figure 1, fixing hole, 2, cutting edge, 3, point of a knife, 4, gear bits platform.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in further details:
A method for milling for high-speed steel roll, comprise rough mill, finish-milling operation, employing machine folder alloy cutter milling is carried out to high-speed steel roll, flat allowance 1mm, keyway allowance 1mm after rough milling operation.The cutting parameter of each Milling Process operation is as follows:
The cutting parameter rough milling operation is: linear velocity Vc=10-12m/s, bite f=2-3mm, feed speed ap=5-10mm/min;
The cutting parameter of finish-milling operation is: linear velocity Vc=14-18m/s, bite f=1-2mm, feed speed ap=0.1-1mm/min.
The machine folder alloy cutter that milling uses is box-shaped molding cutter, at Dao Kuai center, fixing hole 1 is set, be point of a knife 3 at cutter block four angles, the radius of corner of point of a knife 3 is R3, four limits of cutter block are cutting edge 2, and cutter tool cutting edge angle (angle of cutting edge and horizontal direction) is 82 ° (tool cutting edge angle of general cutter is 75 °), thus improve reduction radial cutting force, make cutting brisk, reduce vibration cutting.On the knife face of cutter block, the inner side of cutting edge 2 is provided with gear bits platform 4, and the height of projection of gear bits platform 4 is 1.2 ~ 1.8mm, is preferably 1.5mm.Cutting edge to gear bits platform 4 edge distance be 1mm, gear bits platform 4 is 56 ° with the angle of vertical direction.This tool life is high, chip breaking is brisk, improves Milling Process efficiency, reduces processing cost.
The alloying elements such as a large amount of V, W, Cr, Mo, Nb are contained due to high-speed steel roll, itself there is high rigidity, high tenacity and high-wearing feature, and it requires the pre-allowance of larger processing to prevent distortion in heat treatment process, rough mill rear flat 1mm, keyway allowance 1mm, operation is large for surplus, the characteristic of high tenacity adopts cutter shown in Fig. 1, Fig. 2 to process rough milling.Because the hardness of roll body of roll is large, therefore employing material is the CBN tool sharpening of FBC9000.The present invention is by the optimization of processing and milling parameter, and make the milling operation working (machining) efficiency in forging high-speed steel roll process improve more than 50%, the time processing qualification rate of roll product reaches 100%.
Claims (5)
1. the method for milling of a high-speed steel roll, comprise rough mill, finish-milling operation, employing machine folder alloy cutter carries out milling to high-speed steel roll, it is characterized in that: gear bits platform (4) knife face of described mechanical clamped cutting tool being provided with protruding 1.2 ~ 1.8mm, and cutter tool cutting edge angle is 82 °;
The cutting parameter rough milling operation is: linear velocity Vc=10-12m/s, bite f=2-3mm, feed speed ap=5-10mm/min, and the cutting parameter of finish-milling operation is: linear velocity Vc=14-18m/s, bite f=1-2mm, feed speed ap=0.1-1mm/min.
2. the method for milling of a kind of high-speed steel roll according to claim 1, is characterized in that: flat allowance 1mm, keyway allowance 1mm after rough milling operation.
3. the method for milling of a kind of high-speed steel roll according to claim 1, is characterized in that: the height of described gear bits platform (4) is 1.5mm, and cutting edge is 1mm to the distance of gear bits platform (4), and gear bits platform (4) is 56 ° with the angle of vertical direction.
4. the method for milling of a kind of high-speed steel roll according to any one of claim 1 or 3, is characterized in that: described machine folder alloy cutter is the CBN cutter of FBC9000.
5. the method for milling of a kind of high-speed steel roll according to claim 1, is characterized in that: cutter tool cutting edge angle is the angle of cutting edge and horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510077976.3A CN104708090B (en) | 2015-02-14 | 2015-02-14 | A kind of method for milling of high-speed steel roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510077976.3A CN104708090B (en) | 2015-02-14 | 2015-02-14 | A kind of method for milling of high-speed steel roll |
Publications (2)
| Publication Number | Publication Date |
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| CN104708090A true CN104708090A (en) | 2015-06-17 |
| CN104708090B CN104708090B (en) | 2018-05-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510077976.3A Active CN104708090B (en) | 2015-02-14 | 2015-02-14 | A kind of method for milling of high-speed steel roll |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769689A (en) * | 2022-05-30 | 2022-07-22 | 山东理工大学 | Gradual oblique line cutting edge micro-fine drilling and milling cutter |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3839942A (en) * | 1972-01-07 | 1974-10-08 | Gen Motors Corp | Method for simultaneously milling grooves in opposite sides of a workpiece |
| CN2058356U (en) * | 1989-07-12 | 1990-06-20 | 浙江大学 | Milling and paring spirality steel fibre installation |
| JP2000052130A (en) * | 1998-08-06 | 2000-02-22 | Mitsubishi Materials Corp | Pin milling-cutting ring body cutter for crankshaft |
| CN101745667A (en) * | 2008-12-22 | 2010-06-23 | 西安飞机工业（集团）有限责任公司 | Milling method of organic glass light guide plate |
| CN202517098U (en) * | 2012-02-28 | 2012-11-07 | 株洲欧科亿硬质合金有限公司 | Circular cutter blade |
| CN103071822A (en) * | 2013-03-05 | 2013-05-01 | 哈尔滨理工大学 | Super-hard cutting tool for high-performance cutting of high-strength steel |
-
2015
- 2015-02-14 CN CN201510077976.3A patent/CN104708090B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3839942A (en) * | 1972-01-07 | 1974-10-08 | Gen Motors Corp | Method for simultaneously milling grooves in opposite sides of a workpiece |
| CN2058356U (en) * | 1989-07-12 | 1990-06-20 | 浙江大学 | Milling and paring spirality steel fibre installation |
| JP2000052130A (en) * | 1998-08-06 | 2000-02-22 | Mitsubishi Materials Corp | Pin milling-cutting ring body cutter for crankshaft |
| CN101745667A (en) * | 2008-12-22 | 2010-06-23 | 西安飞机工业（集团）有限责任公司 | Milling method of organic glass light guide plate |
| CN202517098U (en) * | 2012-02-28 | 2012-11-07 | 株洲欧科亿硬质合金有限公司 | Circular cutter blade |
| CN103071822A (en) * | 2013-03-05 | 2013-05-01 | 哈尔滨理工大学 | Super-hard cutting tool for high-performance cutting of high-strength steel |
Non-Patent Citations (1)
| Title |
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| 彭国胜等: ""离心复合高速钢轧辊的高效加工"", 《中国重型装备》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114769689A (en) * | 2022-05-30 | 2022-07-22 | 山东理工大学 | Gradual oblique line cutting edge micro-fine drilling and milling cutter |
| CN114769689B (en) * | 2022-05-30 | 2023-12-29 | 山东理工大学 | Progressive oblique line cutting edge micro drilling and milling cutter |
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| Publication number | Publication date |
|---|---|
| CN104708090B (en) | 2018-05-18 |
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