CN104259743A - Forging method of alloy steel lock shell forge piece - Google Patents

Forging method of alloy steel lock shell forge piece Download PDF

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Publication number
CN104259743A
CN104259743A CN201410354865.8A CN201410354865A CN104259743A CN 104259743 A CN104259743 A CN 104259743A CN 201410354865 A CN201410354865 A CN 201410354865A CN 104259743 A CN104259743 A CN 104259743A
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CN
China
Prior art keywords
forging
impression
base
lock housing
lock shell
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
CN201410354865.8A
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Chinese (zh)
Inventor
蒋波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU LEAP MACHINERY Co Ltd
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JIANGSU LEAP MACHINERY Co Ltd
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 JIANGSU LEAP MACHINERY Co Ltd filed Critical JIANGSU LEAP MACHINERY Co Ltd
Priority to CN201410354865.8A priority Critical patent/CN104259743A/en
Publication of CN104259743A publication Critical patent/CN104259743A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass

Abstract

A forging method of an alloy steel lock shell forge piece comprises the following steps of (1) material preparation, (2) heating, (3) sheet stamping, (4) forming, (5) side cutting, (6) grinding and (7) shot blasting. In the forming process, the pattern draft of a forming die is smaller than 3 degrees. The forging method is adopted to produce an alloy steel lock shell, and therefore compared with a casting lock shell, the forged lock shell has the better mechanical performance and the better material organization structure, meanwhile, the unit part energy consumption is reduced, and the production efficiency is improved.

Description

A kind of forging method of steel alloy lock housing forging
Technical field
The present invention relates to a kind of shell forging for complex contour.Especially about a kind of steel alloy lock housing forging of complex contour of direct employing forging.
Background technology
According to statistics, China produces 3500 ten thousand tons, foundry goods per year, the application of foundry goods, in all trades and professions all widely.Casting is both economical manufacturing process, the superiority that the part casting complex contour more can embody, and some part is not cast and cannot be shaped.Casting dimension, weight and material are unrestricted.Foundry goods is while having common mechanical performance, also having the combination properties such as wear-resisting, corrosion-resistant, shock-absorbing, be that other metal forming methods are not accomplished, but foundry industry is present in some inevitable problems, such as pollute large, easily produce dust, toxic gas, noise etc.; Energy consumption is high, by huge for whole for metal melting power consumption.Along with the benign development of forging industry, forging expense continues to reduce, so there is the demand part of part casting being changed into Forging Technology production in lot of domestic and international enterprise.Compare casting, forging utilizes metal forming machinery to apply pressure to metal stock, makes it produce plastic deformation and has certain mechanical performance, definite shape and size forging to obtain.The as cast condition being eliminated metal by forging is loosened, and seam hole, the mechanical performance of forging is generally better than the foundry goods of same material.Strength member many employings forging that in machinery, load is high, condition of work is severe.But the part forged profile is more complicated is also difficult to process, be limited by profile restriction, transforming foundry goods is that forging has very large difficulty, even cannot forge.
Summary of the invention
For overcoming qualification rate when foundry goods is converted into the operational characteristic difficult point of forging production and improves complex appearance forging process for fuel, the object of the present invention is to provide a kind of steel alloy lock housing forging adopting forging to replace the complex contour of casting.
Technical scheme of the present invention is achieved in the following ways: a kind of forging method of steel alloy lock housing forging, comprises the following steps: 1) get the raw materials ready: 2) heat: 3) base: 4) shaping: 5) trimming: 6) polish: 7) ball blast; It is characterized in that:
1), get the raw materials ready: specification is by sawed-off for steel alloy round steel sawing machine one-tenth blank by drawing, weight of getting the raw materials ready is that the upper deviation of profiled member weight is+60 grams, lower deviation is-30 grams;
2), heat: with intermediate-frequency heating furnace by blank heating to 1200 DEG C ± 50 DEG C;
3), base: with forcing press, heating blank is molded base at base, ensures initial forging temperature 1150 DEG C ± 50 DEG C; Adopt three impression base moulds, first at drawing impression, one, round steel is pulled out 40mm, then at bat flat impression, the other end of round steel is clapped flat, thickness is about 20mm, form a table tennis bat shape, finally at ejection impression, the shape of table tennis bat is pressed into the shape of ladle, thickness is 15mm;
4), shaping: use friction press by forging stock by shaping mould, be forged into the lock housing forging meeting technical requirement, ensure final forging temperature >850 DEG C, with 1 ° of gradient withdrawing pattern, lower moulding/demoulding by knock-pin by forging ejection device;
5), trimming: with forcing press by shaving die by the cutting burrs on forging;
6), polishing: the burr remnants on forging, defect are polished suitable, local burr polishing, residual volume <0.7mm;
7), ball blast: do Shot Blasting with shot-blasting machine to forging, remove the oxide layer on forging surface, forging blemish <0.7mm, makes steel alloy lock housing forging.
The invention has the beneficial effects as follows, adopt forging method to produce steel alloy lock housing, forging lock housing is had than the better mechanical performance of foundry goods lock housing and materials microstructure.Reduce unit part energy consumption simultaneously, enhance productivity.
Accompanying drawing explanation
Fig. 1 is the elevation view of steel alloy lock housing forging of the present invention.
Fig. 2 is blanking mold figure of the present invention.
Fig. 3 is shaping upper figure.
Fig. 4 is shaping counterdie figure.
In figure: 1 be steel alloy lock housing forging, 2 being drawing impression, 3 being ejection impression for clapping flat impression, 4,5 be patrix, 6 for counterdie.
Detailed description of the invention
The forging method of steel alloy lock housing, comprises the following steps:
1, get the raw materials ready: by Fig. 1 requirement by sawed-off for steel alloy round steel sawing machine one-tenth blank, weight of the getting the raw materials ready upper deviation is+60 grams, and lower deviation is-30 grams;
2, heat: adopt intermediate-frequency heating furnace by blank heating to 1200 DEG C ± 50 DEG C;
3, base, adopts forcing press that heating blank is molded base at base, ensures initial forging temperature 1150 DEG C ± 50 DEG C.Because steel alloy lock housing 1 is complex-shaped, be limited by the impacts such as equipment hitting power, mould life-span, metal flow resistance, first blank must be made and be easy to shaping mould and once hit shaping shape, and it is minimum to waste material during the final forging molding of this shape.Base adopts three impression base moulds (as shown in Figure 2), first at drawing impression 2, one, round steel is pulled out about 40mm, then claps flat at the flat impression 3 of bat by the other end of round steel, and thickness is about about 20mm.So just, define the shape that is similar to table tennis bat.Finally at ejection impression 4, the shape of table tennis bat is pressed into the shape of ladle, thickness is about 15mm.
4, shaping: to use friction press that forging stock is passed through shaping mould (as Fig. 3), be forged into the forging 1 meeting technical requirement, ensure final forging temperature >850 DEG C.Consider and will make on the one hand forging profile to greatest extent close to foundry goods profile or be called target shape, pattern draft must be retained so that forging demoulding again on the other hand, therefore with 1 ° of withdrawing pattern, optimize and reduce patrix depth of die cavity, even if make patrix impression only have the pattern draft of 1 °, because the degree of depth is less, also can the easily demoulding.As shown in Figure 4, be the three-dimensional view obliquely of steel alloy lock housing forging piece molding die counterdie.Counterdie 6 correspondence adds the degree of depth, increase the face that the ejects area of knock-pin simultaneously, still be pressed in after making forging shaping in counterdie impression, lower moulding/demoulding by knock-pin by forging ejection device, and increase the knock-pin ejecting area, make to eject active force to distribute on forging and more disperse, when ejecting, forging is not yielding, not easily produces and ejects impression.Ensure forging demoulding.The fillet at turning reduces as far as possible, rational front road preforming, and when making shaping, metal flow momentum reduces, and ensures compact dimensions, reaches drawing requirement, increases die life;
5, trimming, adopts forcing press by shaving die by the cutting burrs on forging;
6, polish: adopt abrasive machine by suitable to the burr remnants on forging, defect polishing, local burr residual volume <0.7mm;
7, ball blast: adopt shot-blasting machine to do Shot Blasting to forging, remove the oxide layer on forging surface, forging blemish <0.7mm, and make forging alloy steel lock housing.

Claims (1)

1. a forging method for steel alloy lock housing forging, comprises the following steps: 1) get the raw materials ready: 2) heat: 3) base: 4) shaping: 5) trimming: 6) polish: 7) ball blast; It is characterized in that:
1), get the raw materials ready: specification is by sawed-off for steel alloy round steel sawing machine one-tenth blank by drawing, weight of getting the raw materials ready is that the upper deviation of profiled member weight is+60 grams, lower deviation is-30 grams;
2), heat: with intermediate-frequency heating furnace by blank heating to 1200 DEG C ± 50 DEG C;
3), base: with forcing press, heating blank is molded base at base, ensures initial forging temperature 1150 DEG C ± 50 DEG C; Adopt three impression base moulds, first at drawing impression, one, round steel is pulled out 40mm, then at bat flat impression, the other end of round steel is clapped flat, thickness is about 20mm, form a table tennis bat shape, finally at ejection impression, the shape of table tennis bat is pressed into the shape of ladle, thickness is 15mm;
4), shaping: use friction press by forging stock by shaping mould, be forged into the lock housing forging meeting technical requirement, ensure final forging temperature >850 DEG C, with 1 ° of gradient withdrawing pattern, lower moulding/demoulding by knock-pin by forging ejection device;
5), trimming: with forcing press by shaving die by the cutting burrs on forging;
6), polishing: the burr remnants on forging, defect are polished suitable, local burr polishing, residual volume <0.7mm;
7), ball blast: do Shot Blasting with shot-blasting machine to forging, remove the oxide layer on forging surface, forging blemish <0.7mm, makes steel alloy lock housing forging.
CN201410354865.8A 2014-07-24 2014-07-24 Forging method of alloy steel lock shell forge piece Pending CN104259743A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410354865.8A CN104259743A (en) 2014-07-24 2014-07-24 Forging method of alloy steel lock shell forge piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410354865.8A CN104259743A (en) 2014-07-24 2014-07-24 Forging method of alloy steel lock shell forge piece

Publications (1)

Publication Number Publication Date
CN104259743A true CN104259743A (en) 2015-01-07

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105177407A (en) * 2015-09-17 2015-12-23 温州三联锻造有限公司 High-precision automobile gear shifting clutch friction plate forge piece and forging method thereof
CN105220064A (en) * 2015-09-17 2016-01-06 温州三联锻造有限公司 A kind of automobile eight-speed transmissions case gear forgings and forging method thereof
CN105344900A (en) * 2015-11-19 2016-02-24 江苏利普机械有限公司 Forging process for lock case

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101417312A (en) * 2007-10-26 2009-04-29 鞍山太阳锻造实业有限公司 The technology of single-anvil zero-blanking once-forming coal-machine scraper forging
CN101844199A (en) * 2010-04-21 2010-09-29 李大军 Production method of aluminium alloy lock panel connecting column
CN102974741A (en) * 2012-08-17 2013-03-20 大连大高阀门股份有限公司 Forging method of valve cover part of valve
CN102989949A (en) * 2011-09-16 2013-03-27 昱宇光电(东莞)有限公司 Magnesium alloy hydraulic seal forging and forming process
CN103357805A (en) * 2013-06-30 2013-10-23 贵州安大航空锻造有限责任公司 Method for forging formation of pin track
CN103481029A (en) * 2013-09-16 2014-01-01 浙江巨科铝业有限公司 Manufacturing method of rotationally-forged aluminum alloy hub
CN103615151A (en) * 2013-11-15 2014-03-05 王震 Hollow lock panel and method for manufacturing same

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101417312A (en) * 2007-10-26 2009-04-29 鞍山太阳锻造实业有限公司 The technology of single-anvil zero-blanking once-forming coal-machine scraper forging
CN101844199A (en) * 2010-04-21 2010-09-29 李大军 Production method of aluminium alloy lock panel connecting column
CN102989949A (en) * 2011-09-16 2013-03-27 昱宇光电(东莞)有限公司 Magnesium alloy hydraulic seal forging and forming process
CN102974741A (en) * 2012-08-17 2013-03-20 大连大高阀门股份有限公司 Forging method of valve cover part of valve
CN103357805A (en) * 2013-06-30 2013-10-23 贵州安大航空锻造有限责任公司 Method for forging formation of pin track
CN103481029A (en) * 2013-09-16 2014-01-01 浙江巨科铝业有限公司 Manufacturing method of rotationally-forged aluminum alloy hub
CN103615151A (en) * 2013-11-15 2014-03-05 王震 Hollow lock panel and method for manufacturing same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105177407A (en) * 2015-09-17 2015-12-23 温州三联锻造有限公司 High-precision automobile gear shifting clutch friction plate forge piece and forging method thereof
CN105220064A (en) * 2015-09-17 2016-01-06 温州三联锻造有限公司 A kind of automobile eight-speed transmissions case gear forgings and forging method thereof
CN105344900A (en) * 2015-11-19 2016-02-24 江苏利普机械有限公司 Forging process for lock case

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Application publication date: 20150107

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