CN102941301A - One-die-formed combined forming die and forming method thereof - Google Patents
One-die-formed combined forming die and forming method thereof Download PDFInfo
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- CN102941301A CN102941301A CN201210455445XA CN201210455445A CN102941301A CN 102941301 A CN102941301 A CN 102941301A CN 201210455445X A CN201210455445X A CN 201210455445XA CN 201210455445 A CN201210455445 A CN 201210455445A CN 102941301 A CN102941301 A CN 102941301A
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Abstract
The invention discloses a one-die-formed combined forming die and a forming method thereof, which belong to the technical field of free forging. The combined forming die disclosed by the invention comprises a jacket with an inner hole, an inner lower backing ring, an inner upper backing ring I and an inner upper backing ring II, wherein the jacket, the inner lower backing ring and the inner upper backing ring I construct a primarily formed forming die; the inner lower backing ring is arranged on the lower part of the inner hole of the jacket; the inner upper backing ring I is arranged on the upper part of the inner hole of the jacket; a die cavity constructed by the inner upper backing ring I and the inner lower backing ring corresponds to a primarily formed blank in shape; the jacket, the inner lower backing ring and the inner upper backing ring II construct a secondarily formed forming die; the inner lower backing ring is arranged on the lower part of the inner hole of the jacket; the inner upper backing ring II is arranged on the upper part of the inner hole of the jacket; and a die cavity constructed by the inner upper backing ring II and the inner lower backing ring corresponds to a pre-forged blank in shape. The forming method disclosed by the invention comprises the following steps of: lengthening; performing primary forming; melting down and heating; and performing secondary forming.
Description
Technical field
The invention belongs to the flat-die forging technical field, particularly relate to a kind of combination loose tool and manufacturing process thereof of a contour forming, be used for the making of the finish forge blocking base of the various nozzle body class of Aeroengine Products part.
Background technology
Modern Engine is the strength member of engine with nozzle body class part, and such part of designing requirement in early stage is cast form; But because the intensity of foundry goods can not satisfy the overall performance requirement of high thrust-weight ratio engine, so change in design is for adopting the precision plastic forming technology to produce such part, to reach the purpose that promotes its performance indications; The nozzle body class part of using the manufacturing of precision plastic forming technology instead has kept the requirement of former casting project organization basically.Because nozzle body class design of part is complicated, adopt conventional Forging Technology base forming process many, number of molds is many, and stock utilization is low.
Abroad, its manufacturing technology belongs to high sophisticated technology field, and the forming technique privacy degrees is high.At home, though the net-size forging of present structure of the same type is succeeded in developing, owing to its complex structure, dimensional accuracy height, manufacture difficulty is very large, causes the qualification rate of net-size forging very low, only has about 25%; Adopt common forging and molding mode base, because many key technical problems are not resolved, cause final qualification rate also only to have about 36%.Complicated design of part, accurate dimensional requirement, II level net-size forging standard has determined the difficulty of such machine parts'precise plastic forming technology.
Summary of the invention
For the problem that prior art exists, the invention provides a kind of combination loose tool and manufacturing process thereof of a contour forming; This manufacturing process can be implemented in finishes the simultaneously base shaping of three kinds of structures in the combination loose tool, improved operating efficiency and product percent of pass.
To achieve these goals, the present invention adopts following technical scheme, and a kind of combination loose tool of a contour forming comprises the overcoat with endoporus, interior lower gasket ring, interior upper pad one ring and interior upper pad two rings; Described overcoat, interior lower gasket ring and interior upper pad one ring form the loose tool that is shaped for the first time, lower gasket ring is arranged on the bottom of overcoat endoporus in described in the loose tool that is shaped for the first time, interior upper pad one ring is arranged on the top of overcoat endoporus, and described interior upper pad one ring is corresponding with the profile of the material base that is shaped for the first time with the die cavity that interior lower gasket ring forms jointly; Described overcoat, interior lower gasket ring and interior upper pad two rings form the loose tool that is shaped for the second time, lower gasket ring is arranged on the bottom of overcoat endoporus in described in the loose tool that is shaped for the second time, in upper pad two rings be arranged on the top of overcoat endoporus, the die cavity of described interior upper pad two rings and the common composition of interior lower gasket ring and the profile of blocking blank are corresponding.
The outside dimension of described interior upper pad one ring, interior upper pad two rings is identical, and corresponding with the interior hole dimension of overcoat.
Take out for the ease of the blocking blank after will being shaped, described interior upper pad two rings are comprised of two semi-rings.
Adopt the manufacturing process of the combination loose tool of a described contour forming, comprise the steps:
Step 1: pulling
The two ends of raw material bar are pulled out to required size and structure;
Step 2: be shaped for the first time
Interior lower gasket ring is put into the bottom of overcoat endoporus, then the bar of two ends pulling is put into the die cavity of upper pad one ring, together put into again the top of overcoat endoporus together with interior upper pad one ring, carry out forging and molding first time, form the material base that is shaped the first time;
Step 3: melt down heating
The material base that will be shaped for the first time takes out from the loose tool that is shaped for the first time, then melts down heating;
Step 4: be shaped for the second time
The material base that is shaped the first time after the heating is put into the die cavity of the lower gasket ring of overcoat inside, and the upper rear that interior upper pad two ring sets are entered the material base that is shaped is for the first time put the top of overcoat endoporus into, carries out forging and molding second time, formation blocking blank.
Beneficial effect of the present invention:
The present invention has thoroughly changed a traditional fiery mold forming technique, has changed the shaping mode of multi-mould multiple working procedure; Realize in a mold, finishing simultaneously base forming technology of three kinds of structures, guaranteed easily structure and the dimensional requirement of the part of final precision forging.
Adopt the manufacturing process of combination loose tool of the present invention greatly to improve raw-material utilization rate, save the consumption of from one piece, improved the qualification rate of final fine forge piece product, reduced cost, increase income, greatly improved aero-engine structural member fine forging technology level; And saved a large amount of follow-up machining workloads, reached the final forming requirements of fine forge piece, the service life of having improved finish forge mould.
Description of drawings
Fig. 1 is the structural representation of the loose tool that is shaped for the first time of the present invention;
Fig. 2 is the structural representation of the loose tool that is shaped for the second time of the present invention;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is the structural representation of blocking blank;
Fig. 5 is the right view of Fig. 4;
Fig. 6 is the structural representation of the rear bar of pulling;
Among the figure, lower gasket ring in the 1--overcoat, 2--, upper pad one ring in the 3--, upper pad two rings in the 4--, the thin oval flange of 5--, 6--trunk structure, 7--band tapering cylinder thin rod part, the 8--material base that is shaped for the first time, 9--blocking blank, bar after 10-pulling, 11-overcoat endoporus, 12-interior upper pad one ring external diameter, 13-interior upper pad two ring external diameters, 14-interior lower gasket ring external diameter.
The specific embodiment
Now the blocking blank with the nozzle body part is configured as example, and the present invention is described in further detail:
The structure of the blocking blank of nozzle body part such as Fig. 4, shown in Figure 5, it comprises band tapering cylinder thin rod part 7 structures, and the middle part is thin oval flange 5 structures that tilt with 73 ° of inclination angles, and the upper end is trunk structure 6.
Such as Fig. 1～shown in Figure 3, a kind of combination loose tool of a contour forming comprises the overcoat 1 with endoporus, interior lower gasket ring 2, interior upper pad one ring 3 and interior upper pad two rings 4; Described overcoat 1, interior lower gasket ring 2 and interior upper pad one ring 3 form the loose tool that is shaped for the first time, lower gasket ring 2 is arranged on the bottom of overcoat 1 endoporus in described in the loose tool that is shaped for the first time, interior upper pad one ring 3 is arranged on the top of overcoat 1 endoporus, and described interior upper pad one ring 3 is corresponding with the profile of the material base 8 that is shaped for the first time with the die cavities that interior lower gasket ring 2 forms jointly; Described overcoat 1, interior lower gasket ring 2 and interior upper pad two rings 4 form the loose tool that is shaped for the second time, lower gasket ring 2 is arranged on the bottom of overcoat 1 endoporus in described in the loose tool that is shaped for the second time, in upper pad two rings 4 be arranged on the top of overcoat 1 endoporus, the die cavities of described interior upper pad two rings 4 and interior lower gasket ring 2 common compositions and the profile of blocking blank 9 are corresponding.
The outside dimension of described interior upper pad one ring 3, interior upper pad two rings 4 is identical, and corresponding with the interior hole dimension of overcoat 1, and the outside dimension of interior lower gasket ring 2 is corresponding with overcoat 1 interior hole dimension.
Take out for the ease of the blocking blank 9 after will being shaped, described interior upper pad two rings 4 are comprised of two semi-rings.
Adopt the manufacturing process of the combination loose tool of a described contour forming, comprise the steps:
Step 1: pulling
Select the diameter of raw material bar, gathering stock and non-unstability in the middle of satisfying pull out the two ends of bar to required size and structure, as shown in Figure 6;
Step 2: be shaped for the first time
Interior lower gasket ring 2 is put into the bottom of overcoat 1 endoporus, then the bar of two ends pulling is put into the die cavity of upper pad one ring 3, together put into again the top of overcoat 1 endoporus together with interior upper pad one ring 3, carry out the forging and molding first time, formation of parts with tapering cylinder thin rod part 7 structures and thin oval flange 5 structures that tilt with 73 ° of inclination angles, form the material base 8 that is shaped for the first time;
Step 3: melt down heating
The material base 8 that will be shaped for the first time takes out from the loose tool that is shaped for the first time, then melts down heating, and heating-up temperature is 1160 ℃;
Step 4: be shaped for the second time
The material base 8 that is shaped the first time after the heating is put into the die cavity of the lower gasket ring 2 of overcoat 1 inside, interior upper pad two is encircled the top that 4 upper rear of being inserted in the material base 8 that is shaped are for the first time put overcoat 1 endoporus into, carry out the forging and molding second time, the trunk structure 6 of formation of parts forms blocking blank 9.
Claims (4)
1. the combination loose tool of a contour forming is characterized in that comprising the overcoat with endoporus, interior lower gasket ring, interior upper pad one ring and interior upper pad two rings; Described overcoat, interior lower gasket ring and interior upper pad one ring form the loose tool that is shaped for the first time, lower gasket ring is arranged on the bottom of overcoat endoporus in described in the loose tool that is shaped for the first time, interior upper pad one ring is arranged on the top of overcoat endoporus, and described interior upper pad one ring is corresponding with the profile of the material base that is shaped for the first time with the die cavity that interior lower gasket ring forms jointly; Described overcoat, interior lower gasket ring and interior upper pad two rings form the loose tool that is shaped for the second time, lower gasket ring is arranged on the bottom of overcoat endoporus in described in the loose tool that is shaped for the second time, in upper pad two rings be arranged on the top of overcoat endoporus, the die cavity of described interior upper pad two rings and the common composition of interior lower gasket ring and the profile of blocking blank are corresponding.
2. the combination loose tool of an a kind of contour forming according to claim 1 is characterized in that the outside dimension of described interior upper pad one ring, interior upper pad two rings is identical, and corresponding with the interior hole dimension of overcoat.
3. the combination loose tool of an a kind of contour forming according to claim 1 is characterized in that described interior upper pad two rings are comprised of two semi-rings.
4. adopt the manufacturing process of the combination loose tool of a contour forming claimed in claim 1, it is characterized in that, comprise the steps:
Step 1: pulling
The two ends of raw material bar are pulled out to required size and structure;
Step 2: be shaped for the first time
Interior lower gasket ring is put into the bottom of overcoat endoporus, then the bar of two ends pulling is put into the die cavity of upper pad one ring, together put into again the top of overcoat endoporus together with interior upper pad one ring, carry out forging and molding first time, form the material base that is shaped the first time;
Step 3: melt down heating
The material base that will be shaped for the first time takes out from the loose tool that is shaped for the first time, then melts down heating;
Step 4: be shaped for the second time
The material base that is shaped the first time after the heating is put into the die cavity of the lower gasket ring of overcoat inside, and the upper rear that interior upper pad two ring sets are entered the material base that is shaped is for the first time put the top of overcoat endoporus into, carries out forging and molding second time, formation blocking blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210455445.XA CN102941301B (en) | 2012-11-13 | 2012-11-13 | A kind of combination loose tool of a contour forming and manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210455445.XA CN102941301B (en) | 2012-11-13 | 2012-11-13 | A kind of combination loose tool of a contour forming and manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102941301A true CN102941301A (en) | 2013-02-27 |
| CN102941301B CN102941301B (en) | 2015-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210455445.XA Expired - Fee Related CN102941301B (en) | 2012-11-13 | 2012-11-13 | A kind of combination loose tool of a contour forming and manufacturing process thereof |
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| CN (1) | CN102941301B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192021A (en) * | 2013-04-12 | 2013-07-10 | 吴桥县华锋五金工具有限责任公司 | Flange shaft forging method |
| CN109590429A (en) * | 2018-11-27 | 2019-04-09 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of manufacturing process and mold of bias adjustable vane |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6245443A (en) * | 1985-08-23 | 1987-02-27 | Rizumu Jidosha Buhin Seizo Kk | Cold forging method for winding shaft of seat belt |
| JP2001025844A (en) * | 1999-07-12 | 2001-01-30 | Kobe Steel Ltd | Die forging method of shaft-like forged product having plural flanges |
| CN101116891A (en) * | 2007-09-12 | 2008-02-06 | 天津市天重江天重工有限公司 | Fabrication technology of big flange stub axle type components |
| CN201644691U (en) * | 2009-12-31 | 2010-11-24 | 江苏金源锻造股份有限公司 | Composite forming die mold of complicated axial forging with shaft shoulder and flange plate |
| CN101985152A (en) * | 2010-08-02 | 2011-03-16 | 天津市天锻压力机有限公司 | Large screw forging mold |
| CN201799555U (en) * | 2010-08-02 | 2011-04-20 | 天津市天锻压力机有限公司 | Large screw forging die |
| CN202316884U (en) * | 2011-11-16 | 2012-07-11 | 天津重型装备工程研究有限公司 | Forging mould for manufacturing flange shaft forge piece of semi built-up crank shaft |
-
2012
- 2012-11-13 CN CN201210455445.XA patent/CN102941301B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6245443A (en) * | 1985-08-23 | 1987-02-27 | Rizumu Jidosha Buhin Seizo Kk | Cold forging method for winding shaft of seat belt |
| JP2001025844A (en) * | 1999-07-12 | 2001-01-30 | Kobe Steel Ltd | Die forging method of shaft-like forged product having plural flanges |
| CN101116891A (en) * | 2007-09-12 | 2008-02-06 | 天津市天重江天重工有限公司 | Fabrication technology of big flange stub axle type components |
| CN201644691U (en) * | 2009-12-31 | 2010-11-24 | 江苏金源锻造股份有限公司 | Composite forming die mold of complicated axial forging with shaft shoulder and flange plate |
| CN101985152A (en) * | 2010-08-02 | 2011-03-16 | 天津市天锻压力机有限公司 | Large screw forging mold |
| CN201799555U (en) * | 2010-08-02 | 2011-04-20 | 天津市天锻压力机有限公司 | Large screw forging die |
| CN202316884U (en) * | 2011-11-16 | 2012-07-11 | 天津重型装备工程研究有限公司 | Forging mould for manufacturing flange shaft forge piece of semi built-up crank shaft |
Non-Patent Citations (1)
| Title |
|---|
| 张建中: "镶块结构在胎模锻工艺中的应用", 《锻压机械》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192021A (en) * | 2013-04-12 | 2013-07-10 | 吴桥县华锋五金工具有限责任公司 | Flange shaft forging method |
| CN109590429A (en) * | 2018-11-27 | 2019-04-09 | 中国航发沈阳黎明航空发动机有限责任公司 | A kind of manufacturing process and mold of bias adjustable vane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102941301B (en) | 2015-09-16 |
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Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: Chinese Hangfa Shenyang Liming Aero engine limited liability company Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Liming Aeroplane Engine (Group) Co., Ltd., Shenyang City |
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| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20201113 |
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| CF01 | Termination of patent right due to non-payment of annual fee |