CN1507963A - Spline shaft processing method using cold extrusion of meidium carbon steel - Google Patents

Spline shaft processing method using cold extrusion of meidium carbon steel Download PDF

Info

Publication number
CN1507963A
CN1507963A CNA021485879A CN02148587A CN1507963A CN 1507963 A CN1507963 A CN 1507963A CN A021485879 A CNA021485879 A CN A021485879A CN 02148587 A CN02148587 A CN 02148587A CN 1507963 A CN1507963 A CN 1507963A
Authority
CN
China
Prior art keywords
blank
extrusion
finish turning
splined shaft
carbon steel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CNA021485879A
Other languages
Chinese (zh)
Inventor
张俊清
Original Assignee
张俊清
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 张俊清 filed Critical 张俊清
Priority to CNA021485879A priority Critical patent/CN1507963A/en
Publication of CN1507963A publication Critical patent/CN1507963A/en
Pending legal-status Critical Current

Links

Abstract

The present invention relates to a technological process for making spline shaft by adopting medium-carbon steel cold extrusion forming process. Said process includes the following steps: cutting billet, heat refining, finish turning billet, surface parkerization, soaping treatment, once composite extruding forming and cutting so as to obtain the invented product with high quality and low cost.

Description

Adopt the process of medium carbon steel cold-extrusion shaping processing splined shaft
Technical field
The present invention relates to the manufacturing technique method of the splined shaft of uses such as automobile, tractor, particularly adopt the method for cold extrusion processing splined shaft, belong to the Machining Technology field.
Cold extrusion is a kind of technology of carrying out cold-extrusion shaping in the mould on forcing press that metal stock is positioned over, have production efficiency and stock utilization height, the measured advantage of converted products matter, in metal processing, obtained using widely, both be used for the processing of non-ferrous metal part, also be used for the processing of ferrous metal part.But, cold extrusion processing to the spline axial workpiece, be confined to adopt the motorcycle splined shaft of mild steel and low-carbon alloy steel cold extrusion processing minor diameter, its technological process is cutting blank, softening processing, finish turning blank, alramenting, saponification processing, extrusion molding, carburizing and quenching, machining.Adopt medium carbon steel to carry out the splined shaft of engineering machinery such as cold extrusion processing automobile, tractor, lathe,, all fail to explore scientific process method and produce satisfied product though have many scientific research institutions and manufacturing enterprise to carry out a lot of research and development.Its reason is, all is that annealing softening is handled to blank, after handling through surface lubrication, carries out cold-extrusion shaping again, and then part is carried out Quenching Treatment.And the elongated splined shaft part of medium carbon steel integral quenching distortion is big, and alignment recovers the precision difficulty, and take a lot of work, time-consuming.Handle if carry out surface hardening merely, the intensity of part heart portion does not reach the requirement of high strength operations such as automobile, tractor far away.So shaping of spline axial workpiece particularly adopts medium carbon steel to be processed with the splined shaft of certain-length, all is to adopt the Milling Process forming technology.The splined shaft Milling Process is shaped, and labour intensity is big, and production efficiency is low, and surface roughness requires to be difficult to guarantee that the utilization rate of material only is 60%-70% that the waste raw material increase product cost.
Summary of the invention
The objective of the invention is by existing cold-extrusion technology is improved, a kind of process that adopts medium carbon steel cold-extrusion shaping processing splined shaft is provided.
The object of the present invention is achieved like this:
One, the splined shaft workpiece of specification requirement HRC≤34, comprise that cutting blank, finish turning blank, alramenting, saponification are handled, employing mould extrusion molding, it is characterized in that the blank that cuts carries out modifier treatment before finish turning, after smart blank surface behind the finish turning is carried out phosphatization, saponification processing, adopt the center cone angle to be provided with a special-purpose die that has the water conservancy diversion diffluence pass of certain angle less than the die cavity porch of 40 degree, once-combined extrusion molding is again through the machining finished product.Described once-combined extrusion molding, be the size of the external diameter of finish turning blank less than the splined shaft external diameter, the employing forward extrusion is leading, and the part material that produces the jumping-up distortion flows into matrix cavity through the water conservancy diversion diffluence pass, and the Compound Extrusion of carrying out forward extrusion and radial compression is shaped.
Two, substitute the splined shaft workpiece of carburizing steel with medium carbon steel, comprise that cutting blank, finish turning blank, alramenting, saponification are handled, employing mould extrusion molding, it is characterized in that the blank that cuts carries out modifier treatment before finish turning, after smart blank surface behind the finish turning is carried out phosphatization, saponification processing, adopt the center cone angle to be provided with a special-purpose die that has the water conservancy diversion diffluence pass of certain angle less than the die cavity porch of 40 degree, once-combined extrusion molding, after carrying out surface hardening again, the machining finished product.Described once-combined extrusion molding, refer to the size of the external diameter of finish turning blank less than the splined shaft external diameter, the employing forward extrusion is leading, and the part material that produces the jumping-up distortion flows into matrix cavity through the water conservancy diversion diffluence pass, and the Compound Extrusion of carrying out forward extrusion and radial compression is shaped.
Technological process of the present invention is to use the physical property of material and mechanical performance and part specification requirement to develop according to splined shaft, employing is placed on the modifier treatment operation before the cold-extrusion shaping, both reached needed mechanical performance, solved the distortion of the workpiece that quenches again behind the cold-extrusion shaping again, guarantee the required precision of workpiece geometries, guaranteed effective removing of blank decarburized layer simultaneously.After the blank of modifier treatment required through finish turning to process, no longer there was the problem of decarburized layer in surface of the work, and effectively raises labor productivity.
Splined shaft is the workpiece that two end supports is rotated on rolling bearing, the external diameter of splined shaft and the pillow block of running in bearings all have certain diameter poor, and cold-extrusion shaping begins that from the end crush cones is all arranged.The present invention utilizes these characteristics just, and die center cone angle design is become less than 40 degree.The size of die center cone angle has a direct impact the length of Forming Workpiece crush cones, and the size of die center cone angle, and the size of the frictional force that crimp is produced has great influence again.The change of center cone angle, directly adjusted the extruding force of unit, extruding force is dropped to make blank go into the die orifice jumping-up, can satisfy the requirement that sub-material radially realizes radial compression and don't interference, and initial crush cones part just in time can turning goes out the pillow block of running in bearings.The concave die cavity of optimal design guarantees that deformation process is reasonable in the cold extrusion process, and excessive pressure is steady, and extrusion pressure is little, avoids damaging mould.
Craft science advanced person of the present invention is applicable to the splined shaft processing, and particularly the production and processing of minor diameter high strength splined shaft is enhanced productivity, and reduces material consumption, improves the quality of products, and reduces product cost.For the enterprise of existing certain cold extrusion processing scale, only need technology and mould are improved, just can fully use the present invention, produce good economic benefits.
Accompanying drawing 1 is the process chart of the splined shaft workpiece of specification requirement HRC≤34 of cold-extrusion shaping processing of the present invention;
Accompanying drawing 2 substitutes the process chart of the splined shaft workpiece of carburizing steel for cold-extrusion shaping of the present invention processing with medium carbon steel;
The specific embodiment
One, to the splined shaft workpiece of specification requirement HRC≤34, first cutting blank, the blank after the cutting carried out modifier treatment after, finish turning blank, the external diameter of the smart blank behind the finish turning be less than the size of splined shaft external diameter, carries out alramenting, saponification is handled.The smart blank that phosphatization, saponification are handled well adopts the center cone angle to be provided with a special-purpose die that has the water conservancy diversion diffluence pass of certain angle less than the die cavity porch of 40 degree, by the once-combined extrusion molding splined shaft of forcing press, again through the machining finished product.
Two, substitute the splined shaft workpiece of carburizing steel with medium carbon steel, first cutting blank, the blank after the cutting carried out modifier treatment after, finish turning blank, the external diameter of the smart blank behind the finish turning be less than the size of splined shaft external diameter, carries out alramenting, saponification is handled.The smart blank that phosphatization, saponification are handled well adopts the center cone angle to be provided with a special-purpose die that has the water conservancy diversion diffluence pass of certain angle less than the die cavity porch of 40 degree, by the once-combined extrusion molding splined shaft of forcing press.After the splined shaft of cold-extrusion shaping carried out surface hardening again, the machining finished product.

Claims (3)

1, a kind of process that adopts medium carbon steel cold-extrusion shaping processing splined shaft, comprise that cutting blank, finish turning blank, alramenting, saponification are handled, employing mould extrusion molding, it is characterized in that the blank that cuts carries out modifier treatment before finish turning, after smart blank surface behind the finish turning is carried out phosphatization, saponification processing, adopt the center cone angle to be provided with a special-purpose die that has the water conservancy diversion diffluence pass of certain angle less than the die cavity porch of 40 degree, once-combined extrusion molding is again through the machining finished product.
2, a kind of process that adopts medium carbon steel cold-extrusion shaping processing splined shaft according to claim 1, it is characterized in that said once-combined extrusion molding, refer to the size of the external diameter of smart blank less than the splined shaft external diameter, the employing forward extrusion is leading, the part material that produces the jumping-up distortion flows into matrix cavity through the water conservancy diversion diffluence pass, and the Compound Extrusion of carrying out forward extrusion and radial compression is shaped.
3, a kind of process that adopts medium carbon steel cold-extrusion shaping processing splined shaft, comprise that cutting blank, finish turning blank, alramenting, saponification are handled, employing mould extrusion molding, it is characterized in that the blank that cuts carries out modifier treatment before finish turning, after smart blank surface behind the finish turning is carried out phosphatization, saponification processing, adopt the center cone angle to be provided with a special-purpose die that has the water conservancy diversion diffluence pass of certain angle less than the die cavity porch of 40 degree, once-combined extrusion molding, after carrying out surface hardening again, the machining finished product.
CNA021485879A 2002-12-17 2002-12-17 Spline shaft processing method using cold extrusion of meidium carbon steel Pending CN1507963A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA021485879A CN1507963A (en) 2002-12-17 2002-12-17 Spline shaft processing method using cold extrusion of meidium carbon steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA021485879A CN1507963A (en) 2002-12-17 2002-12-17 Spline shaft processing method using cold extrusion of meidium carbon steel

Publications (1)

Publication Number Publication Date
CN1507963A true CN1507963A (en) 2004-06-30

Family

ID=34233216

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA021485879A Pending CN1507963A (en) 2002-12-17 2002-12-17 Spline shaft processing method using cold extrusion of meidium carbon steel

Country Status (1)

Country Link
CN (1) CN1507963A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101791757A (en) * 2009-12-30 2010-08-04 上海市机械制造工艺研究所有限公司 Process for manufacturing sedan suspension turning drive ball head long draw bars
CN102049569A (en) * 2010-11-24 2011-05-11 沙市久隆汽车动力转向器有限公司 Steering arm splined shaft toothing processing technology
CN102744342A (en) * 2012-06-11 2012-10-24 盐城理研精密锻造有限公司 Method for forging cutting-tooth forge piece
CN103447772A (en) * 2013-09-11 2013-12-18 宁波市奇精机械有限公司 Spline machining technology
CN104002105A (en) * 2014-06-06 2014-08-27 无锡市神力齿轮冷挤有限公司 Non-magnetic planet shaft and machining process thereof
CN105013848A (en) * 2015-08-04 2015-11-04 常熟市金华机械股份有限公司 Continuous cold extruding device for asymmetric splines
CN105057995A (en) * 2015-07-28 2015-11-18 宁波捷成轴业有限公司 Spline extrusion forming technological method
CN105666047A (en) * 2015-09-09 2016-06-15 重庆文理学院 Hollow shaft with rectangular external spline and manufacturing method thereof
CN106544475A (en) * 2016-11-04 2017-03-29 西安航空动力控制科技有限公司 A kind of thinning method of metal material surface crystal grain
CN108188313A (en) * 2017-11-29 2018-06-22 江阴市永兴机械制造有限公司 A kind of secondary cold extrusion technology of large-diameter outer spline
CN110561058A (en) * 2019-08-13 2019-12-13 金伟锋 Production process of washing machine impeller shaft

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101791757A (en) * 2009-12-30 2010-08-04 上海市机械制造工艺研究所有限公司 Process for manufacturing sedan suspension turning drive ball head long draw bars
CN102049569A (en) * 2010-11-24 2011-05-11 沙市久隆汽车动力转向器有限公司 Steering arm splined shaft toothing processing technology
CN102049569B (en) * 2010-11-24 2013-09-25 沙市久隆汽车动力转向器有限公司 Steering arm splined shaft toothing processing technology
CN102744342A (en) * 2012-06-11 2012-10-24 盐城理研精密锻造有限公司 Method for forging cutting-tooth forge piece
CN103447772A (en) * 2013-09-11 2013-12-18 宁波市奇精机械有限公司 Spline machining technology
CN104002105B (en) * 2014-06-06 2016-05-04 无锡市神力齿轮冷挤有限公司 Without magnetic planet axis processing technology
CN104002105A (en) * 2014-06-06 2014-08-27 无锡市神力齿轮冷挤有限公司 Non-magnetic planet shaft and machining process thereof
CN105057995A (en) * 2015-07-28 2015-11-18 宁波捷成轴业有限公司 Spline extrusion forming technological method
CN105013848A (en) * 2015-08-04 2015-11-04 常熟市金华机械股份有限公司 Continuous cold extruding device for asymmetric splines
CN105666047A (en) * 2015-09-09 2016-06-15 重庆文理学院 Hollow shaft with rectangular external spline and manufacturing method thereof
CN106544475A (en) * 2016-11-04 2017-03-29 西安航空动力控制科技有限公司 A kind of thinning method of metal material surface crystal grain
CN108188313A (en) * 2017-11-29 2018-06-22 江阴市永兴机械制造有限公司 A kind of secondary cold extrusion technology of large-diameter outer spline
CN110561058A (en) * 2019-08-13 2019-12-13 金伟锋 Production process of washing machine impeller shaft

Similar Documents

Publication Publication Date Title
CN102019335B (en) Cold forging processing method of hardened and tempered structural steel
KR100572346B1 (en) Method for producing steel rolling bearing rings
CN105269270B (en) Production process for disc cutter ring of tunnel boring machine (TBM)
CN107138926A (en) Automobile CVT automatic transmission guide wheel shaft manufacturing process
CN102000825A (en) Method for manufacturing driving gear of motorcycle clutch
CN102350622B (en) Production process of straight tooth gear of oil pump
CN102430692A (en) Cold precision forging process for bevel gear and mould thereof
CN104139280B (en) The manufacturing process of hub for vehicle wheel
CN103157759A (en) Cylindrical gear warm-cold combined precision forging plastic molding process
CN104646956A (en) Process for machining ball cage bell-like shell
CN1507963A (en) Spline shaft processing method using cold extrusion of meidium carbon steel
CN103157758A (en) Precision forging plastic forming process for inner gear ring in planetary reducer
CN102632175A (en) Radial forging process of cast-state magnesium alloy tube
CN1337284A (en) Manufacture of combining tooth blank for automobile gear box
CN1438081A (en) Technology for processing spindle nose forged piece of heavy automobile
CN202291189U (en) Bevel gear cold precision forging mould
CN104759849A (en) Manufacturing method for flange component for controlling automobile exhaust
CN104723037A (en) Automotive transmission input shaft composite forming process and forging mold
CN202655371U (en) Cold extruding mould of gear shaft
CN1026868C (en) A method of precisely forming thin-wall tube-shaped element
CN104191181A (en) Magnesium alloy wheel forging-spinning composite forming method
CN106216965A (en) A kind of casting and rolling composite forming method of corronium retainer
CN109648255A (en) A kind of plate forging rolloff composite molding technique of large-sized flange
CN108817870A (en) A kind of speed reducer minute gear cold extrusion technology
CN1095970A (en) Process for cold-drawing spline shaft

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication