CN1295039C - Magnesium alloy plate extruding formation process - Google Patents
Magnesium alloy plate extruding formation process Download PDFInfo
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- CN1295039C CN1295039C CNB2004100214859A CN200410021485A CN1295039C CN 1295039 C CN1295039 C CN 1295039C CN B2004100214859 A CNB2004100214859 A CN B2004100214859A CN 200410021485 A CN200410021485 A CN 200410021485A CN 1295039 C CN1295039 C CN 1295039C
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- Prior art keywords
- extruding
- magnesium alloy
- extrusion die
- alloy plate
- extrusion
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000015572 biosynthetic process Effects 0.000 title 1
- 238000001125 extrusion Methods 0.000 claims abstract description 58
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 238000009413 insulation Methods 0.000 claims description 4
- 235000008429 bread Nutrition 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims 1
- 238000005728 strengthening Methods 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052749 magnesium Inorganic materials 0.000 abstract description 2
- 239000011777 magnesium Substances 0.000 abstract description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 238000005242 forging Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010275 isothermal forging Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000010137 moulding (plastic) Methods 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
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- Extrusion Of Metal (AREA)
Abstract
The present invention provides a method for extruding and forming magnesium alloy boards, which belongs to the technical field of non-ferrous metal plastic forming and relates to a method for extruding and forming the magnesium alloy boards. The method for extruding and forming the magnesium alloy boards adopts an upper extruding mould and a lower extruding mould for the extrusion; before the extrusion is carried out, a layer of thin steel boards is coated on the outside of the magnesium alloy boards, and then is extruded and formed; the upper extruding mould and the lower extruding mould are manufactured according to a shape of a work piece, the quantity of a series of upper extruding modes is large, and products with difference shapes and dimensions are manufactured according to a situation that the forming strength is gradually enlarged. The method can give out a reasonable extruding temperature interval and an extruding method by using the characteristic that the plasticity of the magnesium alloy can be improved under a high temperature, the rupture of magnesium boards can be effectively avoided by the special treatment for extruding magnesium alloy boards and by the upper extruding mould in a special shape, and an extruding-forming work piece made of magnesium alloy boards with larger deformation and even wall thickness can be finally obtained.
Description
Technical field the invention belongs to technical field of nonferrous metal plastic molding, relates to the extrusion process of magnesium alloy plate.
Background technology is present, and the plastic forming process technology of magnesium alloy mainly concentrates on extrusion modling, forging molding, the roll forming etc., but uses also very not extensive.Conventional pressing method also is not applied in and utilizes magnesium alloy plate to prepare on the workpiece, and forging method only can produce little distortion, when material deformation is bigger, can rupture.Document " research of magnesium alloy upper casing isothermal forging ", Harbin Institute of Technology's journal 2000,32 (4) has been introduced magnesium alloy forged workpiece finish forging process, this method distortion is little, but big fillet is arranged, and wall unevenness is even, change, and be not suitable for the magnesium alloy plate extrusion modling.
Summary of the invention the purpose of this invention is to provide a kind of extrusion process of magnesium alloy plate, when utilizing this method extrusion modling, the magnesium alloy plate that is extruded is carried out specially treated, although make that magnesium alloy plate deflection in extrusion modling is very big, workpiece can not rupture yet, and the compressive surface quality is good, and wall thickness is even, attractive in appearance.
Technical scheme of the present invention is: a kind of magnesium alloy plate extrusion process, adopt upper and lower extrusion die extruding, and it is characterized in that: before extruding, with outer bread one deck sheet metal 3 of magnesium alloy plate 2, accompanying drawing 1 is seen in extrusion modling then earlier.The concrete steps of its method are as follows:
(1), upward extrusion die 1, following extrusion die 4 are made according to the workpiece shape, wherein going up extrusion die 1 is that a series has several, and make the different series shape and size according to the dynamics situation that strengthen to be shaped one by one, add aximal deformation value successively, last extrusion die is made into different size and difformity, oval a, circular b, rectangle c are arranged, see accompanying drawing 2;
(2), magnesium alloy plate 2 put into electric furnace be heated to 250～450 ℃, and be incubated 5～30 minutes; In insulation, will go up extrusion die 1, descend extrusion die 4 to be preheated to 150～300 ℃;
(3), will descend extrusion die 4 to place on the forcing press, take out magnesium alloy plate 2 and place down on the extrusion die;
(4), with extrusion die on the ellipse of small deformation, on forcing press, push, to prevent magnesium alloy plate 2 sub-cooled during extruding;
(5), after the extruding, adopt and to melt down method again magnesium alloy plate 2 is heated to and top identical extrusion temperature, when pushing once more, select the circular extrusion die extruding of going up;
(6), again turned back to for the 5th step, select extrusion die extruding on the rectangle,, see accompanying drawing 3 up to squeezing out qualified magnesium alloy blank.
Effect of the present invention and benefit have provided a kind of effective magnesium alloy plate extrusion process.This method is utilized the characteristic of money alloy plasticity raising at high temperature, has provided rational extrusion temperature interval and pressing method; The specially treated of extrusion magnesium alloy sheet material, and adopt the last extrusion die of special shape has effectively prevented the fracture of magnesium plate, has finally obtained to have the magnesium alloy plate extrusion modling workpiece of the moderate finite deformation of uniform wall thickness.
Description of drawings Fig. 1 is a schematic diagram of device of the present invention, wherein: the last extrusion die of 1-, 2-magnesium alloy plate, 3-sheet metal, extrusion die under the 4-.Fig. 2 goes up extrusion die series of shapes figure, wherein: a-ellipse, b-circle, c-rectangle.Fig. 3 is a magnesium alloy plate extrusion modling workpiece profile.
The present invention is further described below in conjunction with drawings and Examples for the specific embodiment.Adopt hot die steel to make, make as shown in Figure 2: a-ellipse, b-circle, extrusion die on the series of shapes such as c-rectangle as going up extrusion die 1 among Fig. 1.Carry out down extrusion die 4; Prepare the thick magnesium alloy plate 2 of 5m, and outsourcing 2mm steel plate 3.Magnesium alloy plate 2 is put into homemade electric furnace be heated to 400 ℃ and be incubated 10 minutes; In insulation, extrusion die, following extrusion die 4 on the ellipse are preheated to 200 ℃; As Fig. 1, will descend extrusion die 4 to place on the forcing press, it is placed on it to take out magnesium alloy plate from electric furnace, with the oval extrusion die of going up, pushes on forcing press earlier.After the extruding magnesium alloy plate melted down again and be heated to and top uniform temp, extrusion die on the preheating circle, extrusion die 4 pushes to same temperature down.Repeating step 4 is selected extrusion die on the rectangle for use, finishes last extruding.Failed part after the extruding promptly can be made into workpiece through machined, as shown in Figure 3.
Claims (1)
1, a kind of magnesium alloy plate extrusion process adopts upper and lower extrusion die extruding, it is characterized in that:
Before extruding, first outer bread one deck sheet metal (3) with magnesium alloy plate (2), extrusion modling then, the concrete steps of its method are as follows:
(1), upward extrusion die (1), following extrusion die (4) are made according to the workpiece shape, wherein going up extrusion die (1) is that a series has several, according to strengthening shaping dynamics situation one by one, add aximal deformation value successively, last extrusion die is made into different size and difformity, and ellipse (a), circular (b), rectangle (c) are arranged;
(2), magnesium alloy plate (2) is put into electric furnace be heated to 250～450 ℃, and insulation 5-30 minute;
In insulation, will go up extrusion die (1), descend extrusion die (4) to be preheated to 150～300 ℃;
(3), will descend extrusion die (4) to place on the forcing press, take out magnesium alloy plate (2) and place down on the extrusion die;
(4), on forcing press, push, to prevent magnesium alloy plate (2) sub-cooled during extruding with extrusion die on the ellipse of small deformation;
(5), after the extruding, adopt and to melt down method again, magnesium alloy plate (2) is heated to the extrusion temperature extruding identical with second step; When pushing once more, select the circular extrusion die extruding of going up;
(6), again turned back to for the 5th step, select extrusion die on the rectangle, up to squeezing out qualified magnesium alloy blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100214859A CN1295039C (en) | 2004-03-24 | 2004-03-24 | Magnesium alloy plate extruding formation process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100214859A CN1295039C (en) | 2004-03-24 | 2004-03-24 | Magnesium alloy plate extruding formation process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1672829A CN1672829A (en) | 2005-09-28 |
| CN1295039C true CN1295039C (en) | 2007-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2004100214859A Expired - Fee Related CN1295039C (en) | 2004-03-24 | 2004-03-24 | Magnesium alloy plate extruding formation process |
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| CN (1) | CN1295039C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103447770B (en) * | 2013-09-06 | 2016-03-09 | 中联重科股份有限公司 | Manufacture the method for pipe clamp, pipe clamp and pipeline |
| CN103878195B (en) * | 2014-03-31 | 2016-02-10 | 重庆市科学技术研究院 | Magnesium alloy plate extruding formation process |
| CN111515562B (en) * | 2020-04-28 | 2022-05-06 | 中国船舶重工集团公司第七二五研究所 | Method for manufacturing titanium or titanium alloy thin-wall spherical shell |
| CN112518240B (en) * | 2020-11-19 | 2022-04-15 | 湖南三泰新材料股份有限公司 | Production method of stainless steel composite billet |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06328270A (en) * | 1993-05-19 | 1994-11-29 | Nippon Steel Corp | Magnesium-aluminum clad material and manufacture thereof |
| CN1401446A (en) * | 2002-05-20 | 2003-03-12 | 沈阳工业大学 | Magnesium alloy radiator and mfg. method thereof |
| CN1443609A (en) * | 2003-04-12 | 2003-09-24 | 大连理工大学 | Magnesium alloy wire continuous extruding method |
-
2004
- 2004-03-24 CN CNB2004100214859A patent/CN1295039C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06328270A (en) * | 1993-05-19 | 1994-11-29 | Nippon Steel Corp | Magnesium-aluminum clad material and manufacture thereof |
| CN1401446A (en) * | 2002-05-20 | 2003-03-12 | 沈阳工业大学 | Magnesium alloy radiator and mfg. method thereof |
| CN1443609A (en) * | 2003-04-12 | 2003-09-24 | 大连理工大学 | Magnesium alloy wire continuous extruding method |
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| Publication number | Publication date |
|---|---|
| CN1672829A (en) | 2005-09-28 |
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Granted publication date: 20070117 Termination date: 20110324 |