Titanium alloy welded case installation edge pre-deformation welding and micro forming method

A welding casing and welding deformation technology, which is applied to welding equipment, welding accessories, arc welding equipment, etc., can solve the problems of poor coaxiality, difficulty in cold correction, and affecting the relative accuracy of the mounting seat, etc., to meet the technical requirements, Solve the effect of self-deformation

Inactive Publication Date: 2012-01-18
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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Problems solved by technology

[0003] In actual production, the welding shrinkage of the combined welding mounting edge will cause the deformation of the mounting edge, which will cause the size and structure of the mounting edge to fail to meet the design requirements during subsequent machining; in addition, the welding deformation of the front and rear mounting edges will also cause welding machine The coaxiality of the front and rear mounting sides of the box is out of tolerance (because the welding deformation position and deformation amount of the front and rear mounting sides are not fixed and irregular, sometimes there is an ellipse problem after the

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  • Titanium alloy welded case installation edge pre-deformation welding and micro forming method
  • Titanium alloy welded case installation edge pre-deformation welding and micro forming method
  • Titanium alloy welded case installation edge pre-deformation welding and micro forming method

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Embodiment Construction

[0017] Such as figure 1 and figure 2 As shown, the titanium alloy welding receiver of the present invention is composed of a thin-walled main body 2, a front mounting edge 1 and a rear mounting edge 4, wherein the thin-walled main body 2 is 1.5mm thick and 484.2mm high, divided into a straight section and a 7.5° cone section, straight The inner diameter of the section (the inner diameter of the front mounting side) is Φ1000mm, the outer diameter is 1003mm, and the maximum diameter of the cone section is 1060mm. There are more than 10 types and 40 mounting seats3 distributed on the thin-walled main body. The two ends of the thin-walled main body are respectively welded together with the front mounting edge and the rear mounting edge.

[0018] Take the previous installation edge as an example. When traditional welding (that is, no pre-deformation welding) is used, the deformation of the installation edge is as follows: Figure 4 As shown by the dotted line 1′ in the middle, t...

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Abstract

The invention discloses a titanium alloy welded case installation edge pre-deformation welding and micro forming method. The method comprises the following steps of: designing and making an installation edge with process allowance according to the welding deformation tendency and the deformation; making a thin-wall main body matched with the installation edge with process allowance; combining and welding the installation edge and the thin-wall main body together by using a combining and welding clamp; and performing micro formation and eliminating welding stress by using a heat setting tool and vacuum heating equipment, and thus obtaining a welded case shell blank. According to the method, the technical problems of welding deformation of the installation edge and poor coaxiality after the front and rear installation edges are welded are effectively solved by using the deformation compensation principle and adopting the pre-deformation welding and micro forming process, and the technical requirement for the blank before welded case machining is met.

Description

technical field [0001] The invention relates to the field of welding of metal components, in particular to a welding (argon arc welding, the same below) and micro-forming method for the mounting edge of a titanium alloy welding casing by pre-deformation. Background technique [0002] A welded casing of a titanium alloy thin-walled diffuser made of TC4 material (refer to figure 1 ), which is composed of thin-walled main body, front mounting edge and rear mounting edge through welding, and more than 10 kinds of more than 40 mounting seats with high relative position accuracy requirements are distributed on the thin-walled main body. [0003] In actual production, the welding shrinkage of the combined welding mounting edge will cause the deformation of the mounting edge, which will cause the size and structure of the mounting edge to fail to meet the design requirements during subsequent machining; in addition, the welding deformation of the front and rear mounting edges will a...

Claims

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Application Information

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IPC IPC(8): B23K9/16B23K9/235B23K9/32
Inventor 黄青松高献娟石竖鲲齐晓丽周勇
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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