CN104690298A - Turning method for high-speed steel roller - Google Patents
Turning method for high-speed steel roller Download PDFInfo
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- CN104690298A CN104690298A CN201510077572.4A CN201510077572A CN104690298A CN 104690298 A CN104690298 A CN 104690298A CN 201510077572 A CN201510077572 A CN 201510077572A CN 104690298 A CN104690298 A CN 104690298A
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- turning
- roll
- cutter
- speed steel
- cutting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B1/00—Methods for turning or working essentially requiring the use of turning-machines; Use of auxiliary equipment in connection with such methods
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/06—Profile cutting tools, i.e. forming-tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2200/00—Details of cutting inserts
- B23B2200/28—Angles
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- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention discloses a turning method for a high-speed steel roller, and belongs to the technical field of machining. The turning method comprises operating procedures of rough turning, half finish turning, heat treatment and finish turning and adopts a clamping alloy cutter for turning of the high-speed steel roller, a scrap blocking table protruding by 1.2-1.8mm is arranged on the cutter surface of the clamping alloy cutter, and the main declination of the cutter is 82 degrees; the cutting parameters of the rough turning operating procedure are that the linear velocity Vc is 28-30m/s, the feeding speed f is 0.6-0.8mm/r, and the cutting depth ap is 18-22mm, and the cutting parameters of the half finish turning operating procedure are that the linear velocity Vc is 55-58m/s, the feeding speed f is 0.5mm/r, and the cutting depth ap is 8-10mm; after the heat treatment of the roller, the hardness of a roller body is HSD95-98, and the cutting parameters of the finish turning operating procedure are that the linear velocity Vc is 48-50m/s, the feeding speed f is 0.5mm/r, and the cutting depth ap is 1.8-2.3mm. According to the turning method disclosed by the invention, the processing efficiency of the turning procedures of the high-speed steel roller is improved more than 30%, and the qualified rate of one-time processing of a roller product achieves 100%.
Description
Technical field
The present invention relates to a kind of alloy cutter for turning high-speed steel roll and turning process method, belong to Machining Technology field.
Background technology
In recent years along with the change of the market demand, 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 the working lining of 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 manufacture 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 turnery processing.If carry out turnery processing by conventional tool, turning process easily 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 turnery processing 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 method for turning of alloy cutter turning high-speed steel roll, to solve the problem of high-speed steel roll turning inefficiency.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of method for turning of high-speed steel roll, comprise rough turn, half finish turning, heat treatment, finish turning operation, employing machine folder alloy cutter carries out turning to high-speed steel roll, and the knife face of 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 of rough turn operation is: linear velocity Vc=28-30m/s, feed speed f=0.6-0.8mm/ turn, bite ap=18-22mm, and the cutting parameter of half finish turning operation is: linear velocity Vc=55-58m/s, feed speed f=0.5mm/ turn, bite ap=8-10mm; After roll heat treatment, hardness of roll body is that the cutting parameter of HSD95-98, finish turning operation: linear velocity Vc=48-50m/s, feed speed f=0.5mm/ turn, bite ap=1.8-2.3mm.
The further improvement of technical scheme of the present invention is: rough turn rear body of roll allowance 15mm, roll neck allowance 25mm, body of roll allowance 5mm, roll neck allowance 10mm after half finish turning.
The further improvement of technical scheme of the present invention is: the height of described gear bits platform is 1.5mm, and cutting edge is 8mm to the distance of gear bits platform, and the angle keeping off plane on bits platform and cutting edge is 98 °.
Cutter tool cutting edge angle be cutter in horizontal plane with the angle of cutter direction of advance place bus.
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 turning 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 turning 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 turning; 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 must not shut down removal and twine bits because iron filings are wound around cutter at turning process; 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 that car goes out can not more than 40mm.
The present invention is by the optimization to processing cutting parameter, and make the turning operation working (machining) efficiency of high-speed steel roll improve more than 30%, 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;
Fig. 3 is the schematic diagram of cutter of the present invention and processed roll tool cutting edge angle.
In figure 1, fixing hole, 2, cutting edge, 3, point of a knife, 4, gear bits platform; 5, cutter, 6, processed roll.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further details:
A kind of method for turning of high-speed steel roll, comprise rough turn, half finish turning, heat treatment, finish turning operation, individual turning operation all adopts machine folder alloy cutter to carry out turning to high-speed steel roll, wherein rough turn rear body of roll allowance 15mm, roll neck allowance 25mm, body of roll allowance 5mm after half finish turning, roll neck allowance 10mm, mechanical clamped cutting tool is box-shaped molding cutter, at the fixing hole 1 at Dao Kuai center, be point of a knife 3 at cutter block four angles, the radius of corner of point of a knife 3 is R4, four limits of cutter block are cutting edge 2, tool cutting edge angle between cutter and processed roll bus is 82 °, this angle refers to and refers to cutter angle in the horizontal plane and between workpiece, i.e. cutter angle in horizontal plane and between the bus of cutter direction of advance place, as shown in Figure 3.
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 8mm, gear bits platform 4 is 98 ° with the angle of plane on cutting edge.
The heat treatment step of high-speed steel roll of the present invention is after half finish turning, before finish turning, and the hardness of roll body after roll heat treatment is HSD95-98.When adopting cutter above, the cutting parameter of each turnery processing operation is as follows:
The cutting parameter of rough turn operation is: linear velocity Vc=28-30m/s, feed speed f=0.6-0.8mm/ turn, bite ap=18-22mm, and the cutting parameter of half finish turning operation is: linear velocity Vc=55-58m/s, feed speed f=0.5mm/ turn, bite ap=8-10mm; The cutting parameter of finish turning operation: linear velocity Vc=48-50m/s, feed speed f=0.5mm/ turn, bite ap=1.8-2.3mm.
Adopt method of the present invention to customize a collection of roll to certain steel rolling mill and add man-hour, the cutting parameter of rough turn operation is: linear velocity Vc=29m/s, the feed speed f=0.7mm/ of roller rotational turn, bite ap=20mm, and the cutting parameter of half finish turning operation is: linear velocity Vc=56m/s, the feed speed f=0.5mm/ of roller rotational turn, bite ap=9mm; After half finish turning, breaker roll is heat-treated, and after roll heat treatment, hardness of roll body is that the cutting parameter of HSD98, finish turning operation: linear velocity Vc=49m/s, feed speed f=0.5mm/ turn, bite ap=2.0mm.The height 1.5mm of the gear bits platform 4 of the projection that the knife face of the cutter mechanical clamped cutting tool used is arranged, cutter tool cutting edge angle is 82 °, and cutting edge is 8mm to the distance of gear bits platform, and gear bits platform 4 is 98 ° with the angle of plane on cutting edge.When processing this batch, on average often lathe tool is processed 1.2 rolls (and comparative batches on average often lathe tool is processed 0.8 roll), without reconditioning lathe tool in the middle of processing, the continuous length of the iron filings that car goes out can not more than 40mm.
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 turn rear body of roll allowance 15mm, roll neck allowance 25mm, body of roll allowance 5mm, roll neck allowance 10mm after half finish turning, characteristic that is large for surplus in rough turn, half finish turning operation, high tenacity adopts tool sharpening of the present invention, can improve working (machining) efficiency, cut down finished cost object.Because finish turning operation is after roll heat treatment, hardness of roll body is up to HSD95-98, and employing material is the CBN tool sharpening of FBC9000, cutting parameter: Vc=48-50m, f=0.5mm, ap=1.8-2.3mm.The present invention is by the optimization of processing cutting parameter, and make the turning operation working (machining) efficiency in forging high-speed steel roll process improve more than 30%, the time processing qualification rate of roll product reaches 100%.
Claims (4)
1. the method for turning of a high-speed steel roll, comprise rough turn, half finish turning, heat treatment, finish turning operation, employing machine folder alloy cutter carries out turning to high-speed steel roll, it is characterized in that: gear bits platform (4) knife face of mechanical clamped cutting tool being provided with protruding 1.2 ~ 1.8mm, and cutter tool cutting edge angle is 82 °; The cutting parameter of rough turn operation is: linear velocity Vc=28-30m/s, feed speed f=0.6-0.8mm/ turn, bite ap=18-22mm, and the cutting parameter of half finish turning operation is: linear velocity Vc=55-58m/s, feed speed f=0.5mm/ turn, bite ap=8-10mm; After roll heat treatment, hardness of roll body is that the cutting parameter of HSD95-98, finish turning operation: linear velocity Vc=48-50m/s, feed speed f=0.5mm/ turn, bite ap=1.8-2.3mm.
2. the method for turning of a kind of high-speed steel roll according to claim 1, is characterized in that: rough turn rear body of roll allowance 15mm, roll neck allowance 25mm, body of roll allowance 5mm, roll neck allowance 10mm after half finish turning.
3. the method for turning 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 8mm to the distance of gear bits platform (4), and gear bits platform (4) is 98 ° with the angle of plane on cutting edge.
4. the method for turning of a kind of high-speed steel roll according to claim 1, is characterized in that: cutter tool cutting edge angle be cutter in horizontal plane with the angle of cutter direction of advance place bus.
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CN201510077572.4A CN104690298B (en) | 2015-02-13 | 2015-02-13 | A kind of method for turning of high-speed steel roll |
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CN201510077572.4A CN104690298B (en) | 2015-02-13 | 2015-02-13 | A kind of method for turning of high-speed steel roll |
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CN104690298B CN104690298B (en) | 2018-03-23 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106583755A (en) * | 2017-02-20 | 2017-04-26 | 兰州兰石重型装备股份有限公司 | Machining method for omega-shaped ring sealing washer |
CN106825620A (en) * | 2017-03-22 | 2017-06-13 | 内蒙古包钢钢联股份有限公司 | A kind of three-roll rack step traditional method of indicating the pronunciation of a Chinese character method for turning |
CN106825615A (en) * | 2017-03-22 | 2017-06-13 | 内蒙古包钢钢联股份有限公司 | A kind of three-roll rack compensates method for turning |
CN114833359A (en) * | 2022-04-26 | 2022-08-02 | 南阳微特防爆电机有限公司 | Processing method for reducing stray loss of rotor |
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JP2004223631A (en) * | 2003-01-21 | 2004-08-12 | Bridgestone Corp | Processing method for sponge rubber roller |
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CN101220440A (en) * | 2008-01-22 | 2008-07-16 | 常州艾柯轧辊有限公司 | Roller and producing technique |
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CN103600092A (en) * | 2013-12-02 | 2014-02-26 | 湖州市银鑫轧辊有限公司 | High-hardness roller machining method |
CN104308206A (en) * | 2014-10-21 | 2015-01-28 | 台州市锐安硬质合金工具有限公司 | Indexable cutter blade for turning |
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DE2441951A1 (en) * | 1974-07-03 | 1976-01-22 | Daetwyler & Co M | METHOD FOR MACHINING FINISHING, DEVICE FOR CARRYING OUT THE METHOD AND APPLICATION OF THE METHOD |
CN2542374Y (en) * | 2002-04-26 | 2003-04-02 | 王树敏 | Roller pass lathe tool |
JP2004223631A (en) * | 2003-01-21 | 2004-08-12 | Bridgestone Corp | Processing method for sponge rubber roller |
CN1554504A (en) * | 2003-12-25 | 2004-12-15 | 株洲硬质合金集团有限公司 | Cutting tip |
CN101220440A (en) * | 2008-01-22 | 2008-07-16 | 常州艾柯轧辊有限公司 | Roller and producing technique |
CN101417342A (en) * | 2008-12-03 | 2009-04-29 | 宝钢集团常州轧辊制造公司 | High-hardness roller processing method |
CN102905824A (en) * | 2010-05-11 | 2013-01-30 | 株式会社钨钛合金 | Cutting insert |
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 |
CN103600092A (en) * | 2013-12-02 | 2014-02-26 | 湖州市银鑫轧辊有限公司 | High-hardness roller machining method |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106583755A (en) * | 2017-02-20 | 2017-04-26 | 兰州兰石重型装备股份有限公司 | Machining method for omega-shaped ring sealing washer |
CN106825620A (en) * | 2017-03-22 | 2017-06-13 | 内蒙古包钢钢联股份有限公司 | A kind of three-roll rack step traditional method of indicating the pronunciation of a Chinese character method for turning |
CN106825615A (en) * | 2017-03-22 | 2017-06-13 | 内蒙古包钢钢联股份有限公司 | A kind of three-roll rack compensates method for turning |
CN106825615B (en) * | 2017-03-22 | 2018-10-02 | 内蒙古包钢钢联股份有限公司 | A kind of three-roll rack compensation method for turning |
CN114833359A (en) * | 2022-04-26 | 2022-08-02 | 南阳微特防爆电机有限公司 | Processing method for reducing stray loss of rotor |
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