CN105458145A - Centrosymmetric titanium alloy structural member mold compensation structure and method - Google Patents
Centrosymmetric titanium alloy structural member mold compensation structure and method Download PDFInfo
- Publication number
- CN105458145A CN105458145A CN201511020738.5A CN201511020738A CN105458145A CN 105458145 A CN105458145 A CN 105458145A CN 201511020738 A CN201511020738 A CN 201511020738A CN 105458145 A CN105458145 A CN 105458145A
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- Prior art keywords
- mold
- compensation
- titanium alloy
- central symmetry
- structure part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/20—Making tools by operations not covered by a single other subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a centrosymmetric titanium alloy structural member mold compensation structure and method. The mold compensation structure comprises an upper mold and a lower mold, and a machining face of the upper mold and a machining face of the lower mold are each provided with a gradually-lowered compensation inclined face towards two sides with the center as a symmetry point, and a compensation angle alpha is formed between the compensation inclined faces and a mold theoretic profile curve. The compensation angle alpha is equal to arctan (H/L), wherein H is the largest elastic deformation value of the upper mold or lower mold in the hitting direction, and L is the horizontal distance between the center point of the upper mold or lower mold and one side edge. According to the centrosymmetric titanium alloy structural member mold compensation structure and method, the gradually-lowered compensation inclined faces are arranged on the machining faces of mold bodies towards the two sides with the centers as the symmetry points, so that the situation that the thickness of a forged part is uneven due to the fact that uneven elastic deformation is generated by the mold is avoided. Therefore, the machining quality of the forged part is guaranteed.
Description
Technical field
The invention belongs to forging part Design of Dies technology, particularly relate to a kind of Central Symmetry titanium alloy structure part model compensatation structure and method.
Background technology
At present, with Central Symmetry titanium alloy structure part (especially to longer structural member) in die forging process, because the drag of forging centre to mould is large, the drag of edge to mould is little, mould produces uneven elastic deformation, as shown in Figure 1, Fig. 1 is the schematic diagram of existing mold uneven elastic deformation in die forging process; In figure, H is the maximum flexibility deformation values of mould at beating position, and this uneven elastic deformation directly causes forging in uneven thickness.There is following problem in process of production in such structural member:
1, forging thickness drop is large, causes forging ' s block dimension defective;
2, forging thickness drop causes distortion uneven, tissue abnormalities.
Summary of the invention
The object of the present invention is to provide a kind of Central Symmetry titanium alloy structure part model compensatation structure and method, to solve in prior art because mould structure reason causes the problem of forging uneven thickness.
For reaching this object, the present invention by the following technical solutions:
A kind of Central Symmetry titanium alloy structure part model compensatation structure, it comprises upper die and lower die, wherein, the machined surface Jun Yi center of described upper die and lower die is symmetric points are provided with compensation inclined-plane from progressively step-down to direction, both sides, has offset angle α between described compensation inclined-plane and mould theory shaped wire.
Especially, described offset angle α=arctan (H/L), wherein, H is patrix or the counterdie maximum flexibility deformation values at beating position, and L is the horizontal range of the central point distance one side of patrix or counterdie.
Especially, described offset angle α=0.34 °.
A kind of Central Symmetry titanium alloy structure part model compensatation method, it comprises the following steps:
1) the maximum flexibility deformation values H of mould beating position in DEFORM numerical Simulation Prediction die forging process is utilized;
2) calculation compensation angle [alpha]=arctan (H/L);
3) be that symmetric points carry out progressively step-down angle compensation design to direction, direction, both sides by the machined surface Jun Yi center of upper die and lower die, offset angle is α.
Beneficial effect of the present invention is, compared with prior art described Central Symmetry titanium alloy structure part model compensatation structure and method take center as symmetric points to be provided with compensation inclined-plane from progressively step-down to direction, both sides by the machined surface at upper die and lower die, have offset angle α between described compensation inclined-plane and mould theory shaped wire.Avoid because mould produces uneven elastic deformation and cause forging in uneven thickness; Thus ensure that the crudy of forging.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of existing mold uneven elastic deformation in die forging process;
Fig. 2 is the schematic diagram of the Central Symmetry titanium alloy structure part model compensatation structure that the specific embodiment of the invention 1 provides.
In figure:
1, patrix; 2, counterdie; 3, machined surface; 4, inclined-plane is compensated; 5, mould theory shaped wire.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.
Refer to shown in Fig. 2, Fig. 2 is the schematic diagram of the Central Symmetry titanium alloy structure part model compensatation structure that the specific embodiment of the invention 1 provides.
In the present embodiment, a kind of Central Symmetry titanium alloy structure part model compensatation structure comprises patrix 1 and counterdie 2, the machined surface 3 of described patrix 1 and counterdie 2 take center as symmetric points are provided with compensation inclined-plane 4 from progressively step-down to direction, both sides, between described compensation inclined-plane 4 and mould theory shaped wire 5, there is offset angle α, described offset angle α=arctan (H/L), wherein, H is patrix 1 or the counterdie 2 maximum flexibility deformation values at beating position, and L is the horizontal range of the central point distance one side of patrix 1 or counterdie 2.The titanium alloy structure part of 670 × 140 × 32mm (the wide x of long x is high) is of a size of for appearance profile, H=2.0 ㎜, H=670mm/2=335mm in the present embodiment.Then offset angle α=arctan (2/335)=0.34 °.
A kind of Central Symmetry titanium alloy structure part model compensatation method, be of a size of the titanium alloy structure part of 670 × 140 × 32mm (the wide x of long x is high) in the present embodiment for appearance profile, it comprises the following steps:
1) the maximum flexibility deformation values H=2.0 ㎜ of mould beating position in DEFORM numerical Simulation Prediction die forging process is utilized;
2) calculation compensation angle [alpha]=arctan (H/L)=arctan (2/335)=0.34 °;
3) be that symmetric points carry out progressively step-down angle compensation design to direction, direction, both sides by the machined surface Jun Yi center of patrix 1 and counterdie 2, offset angle is 0.34 °.
4) carry out die forging production after model compensatation design, forging ' s block dimension all meets drawing requirement after testing, even tissue.
Above embodiment has just set forth general principle of the present invention and characteristic; the present invention does not limit by above-mentioned example; without departing from the spirit and scope of the present invention, the present invention also has various change and change, and these changes and change all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. a Central Symmetry titanium alloy structure part model compensatation structure, it comprises upper die and lower die, it is characterized in that, the machined surface Jun Yi center of described upper die and lower die is symmetric points are provided with compensation inclined-plane from progressively step-down to direction, both sides, has offset angle α between described compensation inclined-plane and mould theory shaped wire.
2. Central Symmetry titanium alloy structure part model compensatation structure according to claim 1; it is characterized in that; described offset angle α=arctan (H/L); wherein; H is patrix or the counterdie maximum flexibility deformation values at beating position, and L is the horizontal range of the central point distance one side of patrix or counterdie.
3. Central Symmetry titanium alloy structure part model compensatation structure according to claim 2, is characterized in that, described offset angle α=0.34 °.
4. a Central Symmetry titanium alloy structure part model compensatation method, it is characterized in that, it comprises the following steps:
1) the maximum flexibility deformation values H of mould beating position in DEFORM numerical Simulation Prediction die forging process is utilized;
2) calculation compensation angle [alpha]=arctan (H/L);
3) be that symmetric points carry out progressively step-down angle compensation design to direction, direction, both sides by the machined surface Jun Yi center of upper die and lower die, offset angle is α.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020738.5A CN105458145A (en) | 2015-12-30 | 2015-12-30 | Centrosymmetric titanium alloy structural member mold compensation structure and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511020738.5A CN105458145A (en) | 2015-12-30 | 2015-12-30 | Centrosymmetric titanium alloy structural member mold compensation structure and method |
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| CN105458145A true CN105458145A (en) | 2016-04-06 |
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| CN201511020738.5A Pending CN105458145A (en) | 2015-12-30 | 2015-12-30 | Centrosymmetric titanium alloy structural member mold compensation structure and method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6164114A (en) * | 1999-10-04 | 2000-12-26 | Pelech, Jr.; Bruno J. | Compensation device for a press brake |
| CN102024081A (en) * | 2010-12-13 | 2011-04-20 | 四川省宜宾普什模具有限公司 | Automobile panel die design method |
| CN102169521A (en) * | 2011-04-25 | 2011-08-31 | 天津职业技术师范大学 | Design method for molded surface of automobile cover part die based on molded surface deformation compensation |
| CN102601194A (en) * | 2012-03-16 | 2012-07-25 | 中国第一汽车股份有限公司 | Molded surface compensation method of large stamping die aiming at deflection deformation of press machine |
| CN203316613U (en) * | 2013-05-14 | 2013-12-04 | 瑞鹄汽车模具有限公司 | Stamping die capable of improving lapping-in rate of large covering part |
| CN205380242U (en) * | 2015-12-30 | 2016-07-13 | 无锡透平叶片有限公司 | Central symmetry titanium alloy structure mould compensation structure |
-
2015
- 2015-12-30 CN CN201511020738.5A patent/CN105458145A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6164114A (en) * | 1999-10-04 | 2000-12-26 | Pelech, Jr.; Bruno J. | Compensation device for a press brake |
| CN102024081A (en) * | 2010-12-13 | 2011-04-20 | 四川省宜宾普什模具有限公司 | Automobile panel die design method |
| CN102169521A (en) * | 2011-04-25 | 2011-08-31 | 天津职业技术师范大学 | Design method for molded surface of automobile cover part die based on molded surface deformation compensation |
| CN102601194A (en) * | 2012-03-16 | 2012-07-25 | 中国第一汽车股份有限公司 | Molded surface compensation method of large stamping die aiming at deflection deformation of press machine |
| CN203316613U (en) * | 2013-05-14 | 2013-12-04 | 瑞鹄汽车模具有限公司 | Stamping die capable of improving lapping-in rate of large covering part |
| CN205380242U (en) * | 2015-12-30 | 2016-07-13 | 无锡透平叶片有限公司 | Central symmetry titanium alloy structure mould compensation structure |
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Application publication date: 20160406 |