CN102601397A - Turning blade for turning circular profile of train wheel and method for manufacturing turning blade - Google Patents
Turning blade for turning circular profile of train wheel and method for manufacturing turning blade Download PDFInfo
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- CN102601397A CN102601397A CN2012100869060A CN201210086906A CN102601397A CN 102601397 A CN102601397 A CN 102601397A CN 2012100869060 A CN2012100869060 A CN 2012100869060A CN 201210086906 A CN201210086906 A CN 201210086906A CN 102601397 A CN102601397 A CN 102601397A
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Abstract
Disclosed are a turning blade for turning a circular profile of a train wheel and a method for manufacturing the turning blade. The turning blade is a machine clamp blade and comprises a quadrilateral and flaky blade body, a mounting hole is arranged in the center of the blade body, and a front cutting edge is arranged on the periphery of the upper surface of the blade body. The turning blade is characterized in that a positive-angle correction surface is arranged on the inner side of the front cutting edge of the blade in order to reduce turning resistance and has an inclination angle ranging from +15 degrees to +16 degrees upwards from a horizontal plane, the integral structural strength of the blade can meet practical application requirements while cutting force is reduced by the aid of an inclined surface placed inwards from the cutting edge, and a chamfer is arranged at the tip of the cutting edge in order to enhance the strength of the cutting edge when in roughing feed, wherein the width of the chamfer is 0.4mm, the angle of the chamfer is -15 degrees, and the roundness R of the cutting edge ranges from 0.04mm to 0.05mm. Therefore, the blade can bear a high feed rate f ranging from 1.5mm to 2.4mm, and cutting efficiency can be improved.
Description
Technical field
The present invention relates to blade that a kind of carbide alloy makes and preparation method thereof, relate to circular bit sheet of a kind of thick, finish turning processing that is used for the train wheel profile and preparation method thereof specifically; This kind circular bit sheet is mainly used in thick, the finish turning processing of train wheel profile, also can be used for the thick finish turning of heavy-duty machinery, generating equipment industry.
Background technology
Because the curved surface that is processed as of train wheel profile is imitated type turning.And in order to guarantee the train wheel quality, reduce the product percent defective, the blank of train wheel has 5-6mm approximately to the allowance that cost stayed.In order to satisfy train wheel efficient turning processing in enormous quantities.The general processing mode that adopts big cutting-in (4-5mm), roughing feed amount (1.5-2mm/r), high-speed (150-250m/min) of factory.Therefore the blade that is adopted generally is circular shear blade, and ISO international standard model is RCMX.Tipping, fusing, wearing and tearing generally take place in this blade easily in process.Processing request is very high.Using blade at this manufacture field at present, is American-European imported product more than 90%.Domestic cutter industry has the fragmentary use of 2-3 family, but formation scale is not yet used.
At the large-sized annular spare of heavy-duty machinery, generating equipment industry, because part is big, forge, cast difficulty, all adopt the semi-ring combination.During machining, to the very high impact resistance of the cutting ability requirement of cutter, higher wearability.General ISO international standard blade SNMM, a CNMM blade consume significant of adopting! At present this market also is to be main with import brand products such as America and Europe, Japan and Korea S, and the shared share of domestic cutter producer is also less than 10%.
Find to have some relevant therewith patents through patent retrieval, mainly contain following:
1, number of patent application is CN201110142188.X, and name is called the patent of invention of " modified form alloy complex disc blade ", and this patent discloses a kind of modified form alloy complex disc blade, is used for the shearing processing of the various sheet materials of metallurgy industry.Stud with composite on the matrix as cutting edge, composite is a carbide alloy, and matrix is a split-type structural.Cutting edge position written-off import cylinder blade capable of using, through the secondary reconditioning, the cutting edge that processing makes new advances; Inner base adopts split-type structural, selects cheap steel for use, and is compound with special complex technique, to change a social system out the cylinder blade of excellent performance.
2, the patent No. is CN200920228765.5, and name is called the Chinese patent of " alloy complex disc blade ", and this patent discloses a kind of alloy complex disc blade, is mainly used in the shearing processing of the various sheet materials of metallurgy industry.The center of matrix is a key shape endoporus, studs with composite bed on the matrix, and composite bed is an alloy.The utility model through the composite alloy layer in the force part of circle shear, reduces the use of valuable alloy under the situation that guarantees the cutting disc performance, thereby realizes promoting the combination property of blade, the purpose that reduces cost.
3, number of patent application is CN200780040991.4; Name is called the patent of invention of " application of auxiliary material in method, cylinder blade and the manufacturing thereof of manufacturing cylinder blade "; This patent discloses a kind of method of making cylinder blade; Said cylinder blade (T) is particularly useful as a rotating blade; The for example cutting knife in the paper machine, and said cylinder blade (T) is to form with the blade preform (1) with cutting surface (2) manufacturing, and it is characterized in that: said blade preform (1) comprises frame part (1 '); The cutting zone that said frame part (1 ') is processed by basic material and attaching surface (3) is present in the cylinder blade of manufacturing essentially in said frame part (1 '); Said attaching surface (3) is processed by line (4b), and said line (4b) exists with solid-state form, and the wear-resistant material layer of being made up of the steel (Cmin.=2.5%) of fusion tungsten or chromium (Wmin. or Crmin.=4%) and vanadium (Vmin.=10%) at least (4).
4, number of patent application is CN200610118213.X, and name is called the patent of invention of " a kind of disc shear blade thereby and manufacturing approach thereof ", and this patent discloses a kind of disc shear blade thereby and manufacturing approach thereof; The weight percentages of said disc shear blade thereby material: C:0.40-0.70%, Si:0.50-1.2%, Mn:0.20-0.50%; Ni:1.00-1.50%, Cr:4.00-6.00%, Mo:0.50-2.00%; V:0.30-1.50%; Nb:0.10-0.80%, P≤0.02%, S≤0.02%.Said method ties up to introduces the electroslag remelting operation in the manufacturing approach of common disc shear blade thereby, and improves modified heat treatment and final heat treated temperature.
But handling ease generation tipping, fusing, the wear problems of these disclosed circular cutters solution train wheel profile still all not yet in effect are so still be further improved.
Summary of the invention
The objective of the invention is to, to processing side's characteristics of the big cutting-in (4-5mm) of the imitative type turning of train wheel profile, roughing feed amount (1.5-2mm/r), high-speed (150-250m/min).Imitative type circular bit sheet of a kind of train wheel profile that can reduce tipping, fusing, wearing and tearing and preparation method thereof is proposed.
Implementer's case proposed by the invention is: the turning insert that a kind of car train wheel is circular, be the clamped cutting bit sheet, and comprise a laminar cutter hub of quadrangle, be provided with installing hole at the center of cutter hub, be provided with front cutting edge around the upper surface of cutter hub; Its characteristics are: for reducing the turning resistance; Inboard on the blade front cutting edge is provided with the tru(e)ing face of a positive-angle; The described tru(e)ing face be horizontal plane up+15-+16 inclination angles; Toward interior inclined-plane, when guaranteeing to reduce cutting force, the blade overall construction intensity also can satisfy the practice requirement by the blade limit; Simultaneously, in order to strengthen edge strength when the cutter roughing feed, be provided with one at the blade tip of blade and widely be 0.4mm, angle value is-15, the negative chamfered edge of cutting edge sphering R0.04 ~ 0.05 mm.Can make blade bear f=1.5 ~ 2.4 mm high-feeds like this, reach the purpose that improves stock-removing efficiency.
Simultaneously, be connected to dark 0.8mm after the inboard positive-angle tru(e)ing face on the blade, groove width 4.13mm, chip breaking table top angle+10 form the chip-breaker of a R0.5 mm with the intersecting plane of rake face.Control chip-flowing and radii size well, satisfy the yield limit of work metal material and fracture, reach the purpose of effective chip breaking.
The preparation method of above-mentioned blade is: at first, according to this product profile suppress, sintering, compacting, after the sinter molding, one week of cylindrical is left the stock removal of half of surplus 0.2mm, is used to guarantee the dimensional accuracy of cylindrical and relief angle.At last, adopt the mode of grinding to repair out negative chamfered edge, the wide 0.4mm of land rib of negative chamfered edge, oblique angle horizontal plane down-15 carry out sphering to the seamed edge of the main cutting edge of negative chamfered edge front at last and handle sphering value R0.04 ~ 0.05mm.
The invention has the advantages that circular knife of the present invention has adopted anterior angle and the grooved optimized, on the basis of lowering cutting resistance, guarantee the intensity of blade; And can control smear metal, chip breaking well when satisfying each profile of contour turning wheel.And in order further to guarantee blade cutting edge intensity and sharpness, our blade rib is wide, the land parameter has been carried out suitable optimization, has improved the cutting edge strength of blade greatly, has reduced tipping.It is also very suitable that in like manner this scheme is used for the large-sized annular spare turning of heavy-duty machinery, generating equipment industry.Can effectively improve such Cutting Parts performance.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the local structure for amplifying sketch map of accompanying drawing 1 blade blade tip.
The specific embodiment
To combine accompanying drawing and embodiment that the present invention is done further description below.
Can find out through accompanying drawing, the present invention relates to the circular turning insert of a kind of car train wheel, be the clamped cutting bit sheet, comprise a laminar cutter hub 1 of quadrangle, be provided with installing hole 2, be provided with front cutting edge 4 around the upper surface 3 of cutter hub at the center of cutter hub 1; Its characteristics are: for reducing the turning resistance; Inboard on the blade front cutting edge is provided with the tru(e)ing face 5 of a positive-angle; The described tru(e)ing face 5 be horizontal plane up+15-+16 inclination angles; Toward interior inclined-plane, when guaranteeing to reduce cutting force, the blade overall construction intensity also can satisfy the practice requirement by the blade limit; Simultaneously, in order to strengthen edge strength when the cutter roughing feed, be provided with one at the blade tip of blade and widely be 0.4mm, angle value is-15, the negative chamfered edge 6 of cutting edge sphering R0.04 ~ 0.05 mm.Can make blade bear f=1.5 ~ 2.4 mm high-feeds like this, reach the purpose that improves stock-removing efficiency.
Simultaneously, be connected to dark 0.8mm after the inboard positive-angle tru(e)ing face on the blade, groove width 4.13mm, chip breaking table top angle+10 form the chip-breaker 7 of a R0.5 mm with the intersecting plane of rake face.Control chip-flowing and radii size well, satisfy the yield limit of work metal material and fracture, reach the purpose of effective chip breaking.
The preparation method of above-mentioned blade is: at first, according to the profile of this product suppress, sintering, compacting, after the sinter molding, one week of cylindrical is left the stock removal of half of surplus 0.2mm, is used to guarantee the dimensional accuracy of cylindrical and relief angle.At last, adopt the mode of grinding to repair out negative chamfered edge, the wide 0.4mm of land rib of negative chamfered edge, oblique angle horizontal plane down-15 carry out sphering to the seamed edge of the main cutting edge of negative chamfered edge front at last and handle sphering value R0.04 ~ 0.05mm.
Preferably; It is through the magnetic precise dressing seamed edge of main cutting edge to be carried out sphering to handle that described sphering is handled; Utilize dashing that two magnetic-particles that magnetic head sprayed mix to scrape medium; The seamed edge scrape main cutting edge is dashed in rotation, makes the seamed edge of main cutting edge scraped the medium sphering by dashing of mixing of magnetic-particle and handles.
Preferably, formation of the spacing of two magnetic heads of described magnetic precise dressing is dashed and to be scraped MEDIA FLOW is foundation, guarantee to dash when scraping on the seamed edge that MEDIA FLOW is sprayed onto main cutting edge, distance apart between 1-3mm.
Preferably, the granularity of scraping medium of dashing of described magnetic precise dressing is the 250-300 order.
Preferably, the processing time of described magnetic precise dressing is 10-20 minute.
The invention has the advantages that circular knife of the present invention has adopted anterior angle and the grooved optimized, on the basis of lowering cutting resistance, guarantee the intensity of blade; And can control smear metal, chip breaking well when satisfying each profile of contour turning wheel.And in order further to guarantee blade cutting edge intensity and sharpness, our blade rib is wide, the land parameter has been carried out suitable optimization, has improved the cutting edge strength of blade greatly, has reduced tipping.It is also very suitable that in like manner this scheme is used for the large-sized annular spare turning of heavy-duty machinery, generating equipment industry.Can effectively improve such Cutting Parts performance.
Claims (7)
1. the turning insert that the car train wheel is circular is the clamped cutting bit sheet, comprises a laminar cutter hub of quadrangle, is provided with installing hole at the center of cutter hub, is provided with front cutting edge around the upper surface of cutter hub; It is characterized in that: for reducing the turning resistance; Inboard on the blade front cutting edge is provided with the tru(e)ing face of a positive-angle; The described tru(e)ing face be horizontal plane up+15-+16 inclination angles; Toward interior inclined-plane, when guaranteeing to reduce cutting force, the blade overall construction intensity also can satisfy the practice requirement by the blade limit; Simultaneously, in order to strengthen edge strength when the cutter roughing feed, be provided with one at the blade tip of blade and widely be 0.4mm, angle value is-15, the negative chamfered edge of cutting edge sphering R0.04 ~ 0.05 mm.
2. the turning insert that car train wheel as claimed in claim 1 is circular; It is characterized in that: be connected to dark 0.8mm after the inboard positive-angle tru(e)ing face on the blade; Groove width 4.13mm, chip breaking table top angle+10 form the chip-breaker of a R0.5 mm with the intersecting plane of rake face.
3. preparation method of making the circular turning insert of the said car train wheel of claim 1; It is characterized in that: at first; According to this product profile suppress, sintering; After compacting, the sinter molding, one week of cylindrical is left the stock removal of half of surplus 0.2mm, is used to guarantee the dimensional accuracy of cylindrical and relief angle;
At last, adopt the mode of grinding to repair out negative chamfered edge, the wide 0.4mm of land rib of negative chamfered edge, oblique angle horizontal plane down-15 carry out sphering to the seamed edge of the main cutting edge of negative chamfered edge front at last and handle sphering value R0.04 ~ 0.05mm.
4. like the preparation method of the circular turning insert of the said car train wheel of claim 3; It is characterized in that: it is through the magnetic precise dressing seamed edge of main cutting edge to be carried out sphering to handle that described sphering is handled; Utilize dashing that two magnetic-particles that magnetic head sprayed mix to scrape medium; The seamed edge scrape main cutting edge is dashed in rotation, makes the seamed edge of main cutting edge scraped the medium sphering by dashing of mixing of magnetic-particle and handles.
5. like the preparation method of the circular turning insert of the said car train wheel of claim 3; It is characterized in that: formation of the spacing of two magnetic heads of described magnetic precise dressing is dashed and scraped MEDIA FLOW is foundation; Guarantee to dash when scraping on the seamed edge that MEDIA FLOW is sprayed onto main cutting edge, distance apart between 1-3mm.
6. like the preparation method of the circular turning insert of the said car train wheel of claim 3, it is characterized in that: the granularity of scraping medium of dashing of described magnetic precise dressing is the 250-300 order.
7. like the preparation method of the circular turning insert of the said car train wheel of claim 3, it is characterized in that: the processing time of described magnetic precise dressing is 10-20 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100869060A CN102601397A (en) | 2012-03-29 | 2012-03-29 | Turning blade for turning circular profile of train wheel and method for manufacturing turning blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100869060A CN102601397A (en) | 2012-03-29 | 2012-03-29 | Turning blade for turning circular profile of train wheel and method for manufacturing turning blade |
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| CN102601397A true CN102601397A (en) | 2012-07-25 |
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| CN2012100869060A Pending CN102601397A (en) | 2012-03-29 | 2012-03-29 | Turning blade for turning circular profile of train wheel and method for manufacturing turning blade |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103008699A (en) * | 2012-11-30 | 2013-04-03 | 株洲普瑞克硬质合金有限公司 | Cutting blade and processing method thereof |
| CN103658697A (en) * | 2012-09-26 | 2014-03-26 | 马学礼 | Novel large-feed chip breaking machine clamping blade |
| CN103846486A (en) * | 2012-11-28 | 2014-06-11 | 株洲钻石切削刀具股份有限公司 | Indexable insert having chamfer structure |
| CN105750817A (en) * | 2016-04-19 | 2016-07-13 | 成都三研精密刀具有限公司 | Repairing method for metal cutter |
| CN109676165A (en) * | 2019-01-10 | 2019-04-26 | 天津大学 | A kind of interrupted turning special blade of nickel base superalloy GH4169 |
Citations (5)
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| CN1328494A (en) * | 1998-12-22 | 2001-12-26 | 塞科机床公司 | Tool for cutting machining |
| CN1539585A (en) * | 2003-10-28 | 2004-10-27 | 哈尔滨理工大学 | Position trunable circular knife in use for both of lathe and milling machine |
| US20080317558A1 (en) * | 2007-06-25 | 2008-12-25 | Niebauer Kenneth L | Round cutting insert with chip control feature |
| CN201693193U (en) * | 2009-12-28 | 2011-01-05 | 中硬金属切削(大连)有限公司 | General finish machining double-groove type indexable numerically-controlled turning tool bit |
| CN202527727U (en) * | 2012-03-29 | 2012-11-14 | 株洲华锐硬质合金工具有限责任公司 | Round turning tool blade for train wheel |
-
2012
- 2012-03-29 CN CN2012100869060A patent/CN102601397A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328494A (en) * | 1998-12-22 | 2001-12-26 | 塞科机床公司 | Tool for cutting machining |
| CN1539585A (en) * | 2003-10-28 | 2004-10-27 | 哈尔滨理工大学 | Position trunable circular knife in use for both of lathe and milling machine |
| US20080317558A1 (en) * | 2007-06-25 | 2008-12-25 | Niebauer Kenneth L | Round cutting insert with chip control feature |
| CN201693193U (en) * | 2009-12-28 | 2011-01-05 | 中硬金属切削(大连)有限公司 | General finish machining double-groove type indexable numerically-controlled turning tool bit |
| CN202527727U (en) * | 2012-03-29 | 2012-11-14 | 株洲华锐硬质合金工具有限责任公司 | Round turning tool blade for train wheel |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103658697A (en) * | 2012-09-26 | 2014-03-26 | 马学礼 | Novel large-feed chip breaking machine clamping blade |
| CN103846486A (en) * | 2012-11-28 | 2014-06-11 | 株洲钻石切削刀具股份有限公司 | Indexable insert having chamfer structure |
| CN103008699A (en) * | 2012-11-30 | 2013-04-03 | 株洲普瑞克硬质合金有限公司 | Cutting blade and processing method thereof |
| CN105750817A (en) * | 2016-04-19 | 2016-07-13 | 成都三研精密刀具有限公司 | Repairing method for metal cutter |
| CN105750817B (en) * | 2016-04-19 | 2017-11-14 | 成都三研精密刀具有限公司 | A kind of restorative procedure of metal cutter |
| CN109676165A (en) * | 2019-01-10 | 2019-04-26 | 天津大学 | A kind of interrupted turning special blade of nickel base superalloy GH4169 |
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Application publication date: 20120725 |