CN105945189A - Loose tooling forging technology of I-shaped forge piece with holes - Google Patents

Loose tooling forging technology of I-shaped forge piece with holes Download PDF

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Publication number
CN105945189A
CN105945189A CN201610454925.2A CN201610454925A CN105945189A CN 105945189 A CN105945189 A CN 105945189A CN 201610454925 A CN201610454925 A CN 201610454925A CN 105945189 A CN105945189 A CN 105945189A
Authority
CN
China
Prior art keywords
forging
mold
blank
mould
flange
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
CN201610454925.2A
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Chinese (zh)
Inventor
吕美莲
刘春超
冯宝倪
吕俊
吕诚
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.)
Auspicious Outstanding Co Ltd Of Forging Of Anhui Province
Original Assignee
Auspicious Outstanding Co Ltd Of Forging Of Anhui Province
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 Auspicious Outstanding Co Ltd Of Forging Of Anhui Province filed Critical Auspicious Outstanding Co Ltd Of Forging Of Anhui Province
Priority to CN201610454925.2A priority Critical patent/CN105945189A/en
Publication of CN105945189A publication Critical patent/CN105945189A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00Details of machines for forging, pressing, or hammering
    • B21J13/02Dies or mountings therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/022Open die forging

Abstract

The invention discloses a loose tooling forging technology of an I-shaped forge piece with holes. The loose tooling forging technology comprises the following steps of: (1) manufacturing a blank with the first fire, to be specific, drawing out the blank through great pressure, forging the blank with a loose tooling, firstly upsetting a large flange at one end of the blank in a preforging mold and upsetting a large flange at the other end of the flange in a forming mold, removing an external mold sleeve, opening two inner inserts, taking out a forging blank, punching and chambering outside the mold, and leaving 0.5 degree-1 degree inclination on the preforging mold and circular beads on steps; and (2) forming with the second fire, to be specific, putting the forging blank on upper and lower flat anvils, forming in the forming mold, and punching and chambering the loose tooling outside the mold after filling a supporting mold. The loose tooling forging technology has the beneficial effects that loose tooling forging technology has no strict requirements on the technique of workers, is simple and convenient to operate and is high in production efficiency; the design of the loose tooling is simple; the production efficiency is improved; the labor intensity is reduced; the size of forge pieces is controlled by using the mold; the percent of pass is greatly increased; and the loose tooling forging technology is suitable for producing the forge pieces with certain blanks.

Description

The fetal membrane Forging Technology of work shape forging with holes
Technical field
The present invention relates to Forging Technology, be specifically related to the fetal membrane Forging Technology of work shape forging with holes.
Background technology
Traditional large-sized flange forging generally utilizes monoblock type loose tool to carry out forging, for oil, chemical industry Industry needs the big specification flange forge piece used, in order to meet flange forge piece dimensional requirement and ensure The intensity of loose tool, the loose tool wall thickness of large-sized flange forging is very big, quality is big, makes the manufacturing cost of flange forge piece High;The quantity how reducing large-scale loose tool in the design and production of loose tool, the flange making full use of in stock Loose tool, the cost of reduction flange forge piece are the difficult problems faced in modern forging enterprise, rely on artificial mode, Use conventional methods and carry out the loose tool manufacture of large-sized flange forging and cannot solve an above-mentioned difficult problem.
Summary of the invention
For solving technical problem described in background technology, the present invention by the following technical solutions: the forging with holes of work shape The fetal membrane Forging Technology of part, it comprises the following steps:
1) the first fire preparing base: weight pulling blank, available fetal membrane forges, first by blank jumping-up in blocker One end large flange, and jumping-up other end large flange in mould, remove outer die casing, insert in opening two, Take out forging stock, the outer punching reaming of mould, blocker to leave the gradient of 0.5 °-1 °, leaves fillet at step, Convenient torr mould initial forging temperature controls at 1000-1300 DEG C;Final forging temperature controls at 700-900 DEG C;
2) the second pyrogene type: be placed on upper and lower flat anvil, in-molded in molding, completely rush outside mould after torr mould Hole, reaming fetal membrane size, initial forging temperature controls at 1000-1200 DEG C, and final forging temperature controls at 700-900 DEG C;
3) put in storage through the conformance with standard regulation that examines the forged pieces.
In step 1) in shaping mould include outer die casing and interior insert two parts and constitute, outer die casing inwall leaves The gradient of 3 °, interior insert divides equally two parts in axial location, and for being open, inwall need not stay gradient, Outer wall coincide with outer die casing, stays the gradient of about 3 °.
The invention has the beneficial effects as follows: this technique is less demanding to workman's technology, easy and simple to handle, production efficiency High;Fetal membrane design is simple, raising production efficiency, reduction labor intensity, forging's block dimension mould control, greatly Improve greatly qualification rate, the forging being suitable for certain blank produces.
Accompanying drawing explanation
Fig. 1 is forging deformation schematic diagram in the present invention;
Fig. 2 is Preform Die structural representation in the present invention;
Fig. 3 is forming die structure schematic diagram in the present invention.
Detailed description of the invention
The fetal membrane Forging Technology of work shape forging with holes, it comprises the following steps:
1) the first fire preparing base: weight pulling blank, available fetal membrane forges, first by blank jumping-up in blocker One end large flange, and jumping-up other end large flange in mould, remove outer die casing, insert in opening two, Taking out forging stock, the outer punching reaming of mould, blocker to leave the gradient of 0.5 °, leaves fillet at step, convenient Torr mould initial forging temperature controls at 1220 DEG C;Final forging temperature controls at 800 DEG C;
2) the second pyrogene type: be placed on upper and lower flat anvil, in-molded in molding, completely rush outside mould after torr mould Hole, reaming fetal membrane size, initial forging temperature controls at 1100 DEG C, and final forging temperature controls at 800 DEG C;
3) put in storage through the conformance with standard regulation that examines the forged pieces.
In step 1) in shaping mould include outer die casing and interior insert two parts and constitute, outer die casing inwall leaves The gradient of 3 °, interior insert divides equally two parts in axial location, and for being open, inwall need not stay gradient, Outer wall coincide with outer die casing, stays the gradient of 3 °.
Embodiment two
The fetal membrane Forging Technology of work shape forging with holes, it comprises the following steps:
1) the first fire preparing base: weight pulling blank, available fetal membrane forges, first by blank jumping-up in blocker One end large flange, and jumping-up other end large flange in mould, remove outer die casing, insert in opening two, Taking out forging stock, the outer punching reaming of mould, blocker to leave the gradient of 1 °, leaves fillet, convenient torr at step Mould initial forging temperature controls at 1000 DEG C;Final forging temperature controls at 700 DEG C;
2) the second pyrogene type: be placed on upper and lower flat anvil, in-molded in molding, completely rush outside mould after torr mould Hole, reaming fetal membrane size, initial forging temperature controls at 1000 DEG C, and final forging temperature controls at 700 DEG C;
3) put in storage through the conformance with standard regulation that examines the forged pieces.
In step 1) in shaping mould include outer die casing and interior insert two parts and constitute, outer die casing inwall leaves The gradient of 3 °, interior insert divides equally two parts in axial location, and for being open, inwall need not stay gradient, Outer wall coincide with outer die casing, stays the gradient of about 3 °.
Embodiment three
The fetal membrane Forging Technology of work shape forging with holes, it comprises the following steps:
1) the first fire preparing base: weight pulling blank, available fetal membrane forges, first by blank jumping-up in blocker One end large flange, and jumping-up other end large flange in mould, remove outer die casing, insert in opening two, Taking out forging stock, the outer punching reaming of mould, blocker to leave the gradient of 1 °, leaves fillet, convenient torr at step Mould initial forging temperature controls at 1300 DEG C;Final forging temperature controls at 900 DEG C;
2) the second pyrogene type: be placed on upper and lower flat anvil, in-molded in molding, completely rush outside mould after torr mould Hole, reaming fetal membrane size, initial forging temperature controls at 1200 DEG C, and final forging temperature controls at 900 DEG C;
3) put in storage through the conformance with standard regulation that examines the forged pieces.
In step 1) in shaping mould include outer die casing and interior insert two parts and constitute, outer die casing inwall leaves The gradient of 3 °, interior insert divides equally two parts in axial location, and for being open, inwall need not stay gradient, Outer wall coincide with outer die casing, stays the gradient of about 3 °.

Claims (2)

1. the fetal membrane Forging Technology of work shape forging with holes, it is characterised in that it comprises the following steps:
1) the first fire preparing base: weight pulling blank, available fetal membrane forges, first by blank jumping-up in blocker One end large flange, and jumping-up other end large flange in mould, remove outer die casing, insert in opening two, Take out forging stock, the outer punching reaming of mould, blocker to leave the gradient of 0.5 °-1 °, leaves fillet at step, Convenient torr mould initial forging temperature controls at 1000-1300 DEG C;Final forging temperature controls at 700-900 DEG C;
2) the second pyrogene type: be placed on upper and lower flat anvil, in-molded in molding, completely rush outside mould after torr mould Hole, reaming fetal membrane size, initial forging temperature controls at 1000-1200 DEG C, and final forging temperature controls at 700-900 DEG C;
3) put in storage through the conformance with standard regulation that examines the forged pieces.
The fetal membrane Forging Technology of work shape forging with holes the most according to claim 1, it is characterised in that In step 1) in shaping mould include outer die casing and interior insert two parts and constitute, outer die casing inwall leaves The gradient of 3 °, interior insert divides equally two parts in axial location, and for being open, inwall need not stay gradient, Outer wall coincide with outer die casing, stays the gradient of 3 °.
CN201610454925.2A 2016-06-20 2016-06-20 Loose tooling forging technology of I-shaped forge piece with holes Pending CN105945189A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610454925.2A CN105945189A (en) 2016-06-20 2016-06-20 Loose tooling forging technology of I-shaped forge piece with holes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610454925.2A CN105945189A (en) 2016-06-20 2016-06-20 Loose tooling forging technology of I-shaped forge piece with holes

Publications (1)

Publication Number Publication Date
CN105945189A true CN105945189A (en) 2016-09-21

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CN (1) CN105945189A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109590418A (en) * 2018-11-20 2019-04-09 韶关市中机重工股份有限公司 The manufacturing method of lower box on maritime platform lifting device
CN109926541A (en) * 2019-04-24 2019-06-25 四川弘信能源装备制造有限公司 The forging forming method of two-piece type flanged joint ball valve valve deck blank
CN110614340A (en) * 2019-04-29 2019-12-27 金雷科技股份公司 Double-flange die forging method

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61103638A (en) * 1984-10-26 1986-05-22 Takaoka Ind Ltd Die forging device
CN101670417A (en) * 2009-09-29 2010-03-17 重庆凯恩机械制造有限公司 Steering knuckle forging molding process of heavy truck
CN202824490U (en) * 2012-08-17 2013-03-27 苏州宝业锻造有限公司 Composite mold with large aperture casing head and tubing head
CN102989950A (en) * 2011-09-19 2013-03-27 上海交大中京锻压有限公司 Forging process of automotive besides-star wheel
CN103469092A (en) * 2013-07-26 2013-12-25 中原特钢股份有限公司 Production method for main shaft of fan by using 34CrNiMo6 steel as raw material
CN105215240A (en) * 2015-10-16 2016-01-06 西安三角航空科技有限责任公司 A kind of blank-making method of ultra-large type whole titanium alloy frame forging

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61103638A (en) * 1984-10-26 1986-05-22 Takaoka Ind Ltd Die forging device
CN101670417A (en) * 2009-09-29 2010-03-17 重庆凯恩机械制造有限公司 Steering knuckle forging molding process of heavy truck
CN102989950A (en) * 2011-09-19 2013-03-27 上海交大中京锻压有限公司 Forging process of automotive besides-star wheel
CN202824490U (en) * 2012-08-17 2013-03-27 苏州宝业锻造有限公司 Composite mold with large aperture casing head and tubing head
CN103469092A (en) * 2013-07-26 2013-12-25 中原特钢股份有限公司 Production method for main shaft of fan by using 34CrNiMo6 steel as raw material
CN105215240A (en) * 2015-10-16 2016-01-06 西安三角航空科技有限责任公司 A kind of blank-making method of ultra-large type whole titanium alloy frame forging

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109590418A (en) * 2018-11-20 2019-04-09 韶关市中机重工股份有限公司 The manufacturing method of lower box on maritime platform lifting device
CN109926541A (en) * 2019-04-24 2019-06-25 四川弘信能源装备制造有限公司 The forging forming method of two-piece type flanged joint ball valve valve deck blank
CN109926541B (en) * 2019-04-24 2020-04-03 四川弘信能源装备制造有限公司 Forging forming method of two-piece flange connection ball valve cover blank
CN110614340A (en) * 2019-04-29 2019-12-27 金雷科技股份公司 Double-flange die forging method

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Application publication date: 20160921

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