CN105363823A - Method for rolling aluminum alloy sheet forge pieces - Google Patents
Method for rolling aluminum alloy sheet forge pieces Download PDFInfo
- Publication number
- CN105363823A CN105363823A CN201510867027.5A CN201510867027A CN105363823A CN 105363823 A CN105363823 A CN 105363823A CN 201510867027 A CN201510867027 A CN 201510867027A CN 105363823 A CN105363823 A CN 105363823A
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- China
- Prior art keywords
- forging
- aluminium alloy
- plate shape
- aluminum alloy
- carry out
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a method for rolling an aluminum alloy sheet forge pieces. The method comprises the following steps: carrying out substituting forging to an aluminum alloy blank through three times of upsetting and three times of drawing; then carrying out upsetting, punching, trestle chambering and rolling on the aluminum alloy blank treated after substituting forging, so as to make a high-tube thin-wall ring part, wherein the inner diameter of the ring part is 85 percent to 90 percent of the outer diameter of the ring part in size; then using liner cutting to cut the high-tube thin-wall ring part into two half ring parts; and then straightening under a forging hammer, so as to obtain two sheet forge pieces. The method provided by the invention can effectively overcome defects of uneven thickness, poor structure uniformity, more forging times and the like on the forge pieces, the forge piece quality is improved, and the production efficiency is improved. The method provided by the invention is used for the production of the aluminum alloy sheet forge pieces.
Description
Technical field
The present invention relates to a kind of milling method of plate shape Forging, particularly relate to a kind of milling method of aluminium alloy plate shape Forging.
Background technology
Panel-like member is a kind of conventional structural member, at present for the shaping of this forging, is typically employed in open die forging mode, is namely forged by flat-die hammer, makes it become plate shape.The maximum shortcoming of this method is that this forging thickness is less, in the process forged, temperature declines too fast, resistance of deformation increases very fast, the thickness that every hammering is beaten is not identical, causes the in uneven thickness of most soleplate shape Forging, and due to each position distortions amount inconsistent, make the structural homogenity of forging poor, time forging of the many fire of usual needs, increases the consumption of the energy, also extends the production cycle.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of milling method of aluminium alloy plate shape Forging, produce sheet material forging, by adopting looping mill rolling mode, forging is made high cylinder circular thin-wall forging, shear stretching one-tenth plate shape Forging again, efficiently avoid in uneven thickness, the defect such as structural homogenity is poor, forging times is many of forging, improve the quality of forging, improve production efficiency.
For solving the problems of the technologies described above, the milling method of aluminium alloy plate shape Forging of the present invention, its technical scheme comprises the following steps:
Rods and bars of aluminium alloy by specification blanking is heated to 420 DEG C, is incubated by effective thickness × 4min/10mm; Three jumping-ups, pulling, round as a ball carrying out are adopted to change forging, air cooling after forging; Final forging temperature is more than or equal to 320 DEG C;
Reheating to 380 DEG C by changing the blank after forging, being incubated by effective thickness × 4min/10mm; Then carry out jumping-up, obtain solid cylinder; Carry out punching to solid cylinder again and obtain hollow cylinder, the internal diameter size of hollow cylinder is 30% ~ 40% of outside dimension;
Its internal diameter size is made to be 60% ~ 65% of outside dimension through saddle support reaming described hollow cylinder; And then upper looping mill, carry out finish to gauge and make its internal diameter size be 85% ~ 90% of outside dimension, make high cylinder thin-walled ring;
Adopt Linear cut to cut along the axis of high cylinder thin-walled ring, obtain two semicircle rings, then semicircle ring is heated to 100 DEG C ~ 120 DEG C, carries out stretching under forging hammer, obtain two plate shape Forgings.
The final forging temperature of described jumping-up, punching, saddle support reaming, looping mill rolling four steps all >=280 DEG C, as temperature < 280 DEG C, need to reheat to 380 DEG C, then carry out next step operation.
Described aluminium alloy is 2A70 alloy.
Compared with prior art, beneficial effect of the present invention is as follows:
The milling method of aluminium alloy plate shape Forging of the present invention, by adopting looping mill rolling mode, forging is made high cylinder circular thin-wall forging, shear stretching one-tenth plate shape Forging again, efficiently avoid in uneven thickness, the defect such as structural homogenity is poor, forging times is many of forging, improve the quality of forging, improve production efficiency.
This forging appearance and size is complete after testing.
This forging structural homogenity is better after testing.
The room temperature tensile properties of this forging after testing, its tensile strength is 420MPa ~ 435MPa (being greater than the 382MPa of design instructions for use), elongation after fracture was 13% ~ 17% (being greater than 5% of design instructions for use), and Brinell hardness is 125HB ~ 128HB (being greater than the 110HB of design instructions for use).
Above-mentioned testing result shows, adopts this forging property indices all to meet the requirements.
Detailed description of the invention
Implement the milling method of aluminium alloy plate shape Forging of the present invention, need to provide the equipment such as forge furnace, forcing press, looping mill, manipulator.With material trademark be below the aluminium alloy of 2A70 to illustrate embodiments of the present invention:
The chemical composition (percentage by weight) of this 2A70 alloy is: containing Cu amount 1.9% ~ 2.5%, containing Mg amount 1.4% ~ 1.8%, containing Fe amount 0.9% ~ 1.5%, ni content 0.9% ~ 1.5%, containing Ti amount 0.02% ~ 0.10%, containing Mn amount 0.20%, containing Zn amount 0.30%, si content 0.35%, other elements single≤0.05% and summation≤0.10%, surplus are Al.
The step of this method is as follows:
Rods and bars of aluminium alloy by specification blanking is heated to 420 DEG C, is incubated by effective thickness × 4min/10mm; Three jumping-ups, pulling, round as a ball carrying out are adopted to change forging, air cooling after forging; Final forging temperature is more than or equal to 320 DEG C;
Reheating to 380 DEG C by changing the blank after forging, being incubated by effective thickness × 4min/10mm; Then carry out jumping-up, obtain solid cylinder; Carry out punching to solid cylinder again and obtain hollow cylinder, the internal diameter size of hollow cylinder is 30% ~ 40% of outside dimension;
Its internal diameter size is made to be 60% ~ 65% of outside dimension through saddle support reaming described hollow cylinder; And then upper looping mill, carry out finish to gauge and make its internal diameter size be 85% ~ 90% of outside dimension, make high cylinder thin-walled ring;
Adopt Linear cut to cut along the axis of high cylinder thin-walled ring, obtain two semicircle rings, then semicircle ring is heated to 100 DEG C ~ 120 DEG C, carries out stretching under forging hammer, obtain two plate shape Forgings.
The final forging temperature of described jumping-up, punching, saddle support reaming, looping mill rolling four steps all >=280 DEG C, as temperature < 280 DEG C, need to reheat to 380 DEG C, then carry out next step operation.
Claims (3)
1. a milling method for aluminium alloy plate shape Forging, is characterized in that, comprises the following steps:
Rods and bars of aluminium alloy by specification blanking is heated to 420 DEG C, is incubated by effective thickness × 4min/10mm; Three jumping-ups, pulling, round as a ball carrying out are adopted to change forging, air cooling after forging; Final forging temperature is more than or equal to 320 DEG C;
Reheating to 380 DEG C by changing the blank after forging, being incubated by effective thickness × 4min/10mm; Then carry out jumping-up, obtain solid cylinder; Carry out punching to solid cylinder again and obtain hollow cylinder, the internal diameter size of hollow cylinder is 30% ~ 40% of outside dimension;
Its internal diameter size is made to be 60% ~ 65% of outside dimension through saddle support reaming described hollow cylinder; And then upper looping mill, carry out finish to gauge and make its internal diameter size be 85% ~ 90% of outside dimension, make high cylinder thin-walled ring;
Adopt Linear cut to cut along the axis of high cylinder thin-walled ring, obtain two semicircle rings, then semicircle ring is heated to 100 DEG C ~ 120 DEG C, carries out stretching under forging hammer, obtain two plate shape Forgings.
2. the milling method of aluminium alloy plate shape Forging according to claim 1, is characterized in that, described aluminium alloy is 2A70 alloy.
3. the milling method of aluminium alloy plate shape Forging according to claim 1 and 2, it is characterized in that, the final forging temperature of described jumping-up, punching, saddle support reaming, looping mill rolling four steps all >=280 DEG C, as temperature < 280 DEG C, need to reheat to 380 DEG C, then carry out next step operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510867027.5A CN105363823A (en) | 2015-12-02 | 2015-12-02 | Method for rolling aluminum alloy sheet forge pieces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510867027.5A CN105363823A (en) | 2015-12-02 | 2015-12-02 | Method for rolling aluminum alloy sheet forge pieces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105363823A true CN105363823A (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510867027.5A Pending CN105363823A (en) | 2015-12-02 | 2015-12-02 | Method for rolling aluminum alloy sheet forge pieces |
Country Status (1)
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106363115A (en) * | 2016-08-31 | 2017-02-01 | 无锡派克新材料科技股份有限公司 | Novel ultrahigh taper ring rolling method |
| CN107443023A (en) * | 2017-08-31 | 2017-12-08 | 武汉理工大学 | A kind of flexible processing method with muscle thin-walled large aluminum alloy cylinder |
| CN108237197A (en) * | 2017-12-07 | 2018-07-03 | 陕西宏远航空锻造有限责任公司 | A kind of forging method for improving the flaw detection of structural steel large-sized ring part |
| CN108435821A (en) * | 2018-02-02 | 2018-08-24 | 国机金属江苏有限公司 | A kind of thin square plate forging method |
| CN109175891A (en) * | 2018-08-22 | 2019-01-11 | 昆山吉昌橡塑有限公司 | The anti-corrugation production technology of large-scale hoistway featheredge flanged joint ring |
| CN111644548A (en) * | 2020-06-12 | 2020-09-11 | 无锡派克新材料科技股份有限公司 | Forging-modifying technology for high-strength homogeneous aluminum alloy forging for spaceflight |
| CN114309388A (en) * | 2021-12-31 | 2022-04-12 | 无锡派克新材料科技股份有限公司 | Forging process of steel ring forging with ultrahigh-strength structure |
| CN114505429A (en) * | 2021-12-15 | 2022-05-17 | 陕西宏远航空锻造有限责任公司 | Forging method of 7050 aluminum alloy forging |
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| JPH02127918A (en) * | 1988-11-04 | 1990-05-16 | Yasuyoshi Fukui | Manufacture of plate-like inclining function material applying centrifugal casting method and unbending working method |
| JP2000190020A (en) * | 1998-12-22 | 2000-07-11 | Kobe Steel Ltd | Manufacture of plate and bar and manufacture of welded groove tube |
| CN101823112A (en) * | 2010-05-20 | 2010-09-08 | 二重集团（德阳）重型装备股份有限公司 | Forging process of plate element |
| CN104191166A (en) * | 2014-08-04 | 2014-12-10 | 贵州航宇科技发展股份有限公司 | Rolling forming method of aluminum alloy high-tube thin-wall rings |
| CN104368621A (en) * | 2014-10-30 | 2015-02-25 | 西安航天动力机械厂 | Manufacturing method of metal plate |
| CN104438419A (en) * | 2014-10-24 | 2015-03-25 | 无锡市派克重型铸锻有限公司 | Forging forming process of high barrel-shaped aluminum alloy forged piece |
-
2015
- 2015-12-02 CN CN201510867027.5A patent/CN105363823A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02127918A (en) * | 1988-11-04 | 1990-05-16 | Yasuyoshi Fukui | Manufacture of plate-like inclining function material applying centrifugal casting method and unbending working method |
| JP2000190020A (en) * | 1998-12-22 | 2000-07-11 | Kobe Steel Ltd | Manufacture of plate and bar and manufacture of welded groove tube |
| CN101823112A (en) * | 2010-05-20 | 2010-09-08 | 二重集团（德阳）重型装备股份有限公司 | Forging process of plate element |
| CN104191166A (en) * | 2014-08-04 | 2014-12-10 | 贵州航宇科技发展股份有限公司 | Rolling forming method of aluminum alloy high-tube thin-wall rings |
| CN104438419A (en) * | 2014-10-24 | 2015-03-25 | 无锡市派克重型铸锻有限公司 | Forging forming process of high barrel-shaped aluminum alloy forged piece |
| CN104368621A (en) * | 2014-10-30 | 2015-02-25 | 西安航天动力机械厂 | Manufacturing method of metal plate |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106363115A (en) * | 2016-08-31 | 2017-02-01 | 无锡派克新材料科技股份有限公司 | Novel ultrahigh taper ring rolling method |
| CN107443023A (en) * | 2017-08-31 | 2017-12-08 | 武汉理工大学 | A kind of flexible processing method with muscle thin-walled large aluminum alloy cylinder |
| CN108237197A (en) * | 2017-12-07 | 2018-07-03 | 陕西宏远航空锻造有限责任公司 | A kind of forging method for improving the flaw detection of structural steel large-sized ring part |
| CN108435821A (en) * | 2018-02-02 | 2018-08-24 | 国机金属江苏有限公司 | A kind of thin square plate forging method |
| CN108435821B (en) * | 2018-02-02 | 2020-04-03 | 国机金属江苏有限公司 | Thin square plate forging method |
| CN109175891A (en) * | 2018-08-22 | 2019-01-11 | 昆山吉昌橡塑有限公司 | The anti-corrugation production technology of large-scale hoistway featheredge flanged joint ring |
| CN111644548A (en) * | 2020-06-12 | 2020-09-11 | 无锡派克新材料科技股份有限公司 | Forging-modifying technology for high-strength homogeneous aluminum alloy forging for spaceflight |
| CN111644548B (en) * | 2020-06-12 | 2022-04-01 | 无锡派克新材料科技股份有限公司 | Forging-modifying technology for high-strength homogeneous aluminum alloy forging for spaceflight |
| CN114505429A (en) * | 2021-12-15 | 2022-05-17 | 陕西宏远航空锻造有限责任公司 | Forging method of 7050 aluminum alloy forging |
| CN114309388A (en) * | 2021-12-31 | 2022-04-12 | 无锡派克新材料科技股份有限公司 | Forging process of steel ring forging with ultrahigh-strength structure |
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Application publication date: 20160302 |
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