Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

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
View PDF3 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 welding of the mounting sides, and finally reflected on the entire welding box. The rear mounting edge is different from the axis), resulting in a decrease in the relative position accuracy of more than 40 mounting base holes on the thin-walled main body, which directly affects the relative accuracy of the mounting base after welding
Because the TC4 material is difficult to cold-correct the shape at room temperature, even if the casing is vacuum-heated and shaped after welding (and the welding stress is eliminated at the same time), it can only play a shape-correcting role within a limited range. Deformation is still not resolved

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • 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

Examples

Experimental program
Comparison scheme
Effect test

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...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
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
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com