Tool and method for restraining welding deformation of thin-wall curved surface aluminum alloy inverted-L-shaped part
A technology for welding parts and aluminum alloys, which is applied to the field of manual argon arc welding welding tooling for aluminum alloy parts with thin-walled curved surfaces and long welds, which can solve the problems of low production efficiency and inaccurate welding tooling positioning, and achieve control of welding stress and welding deformation. , good welding joints, the effect of ensuring the overall position accuracy and welding quality
Inactive Publication Date: 2020-11-17
SHENYANG AIRCRAFT CORP
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Problems solved by technology
[0003] According to the problems of inaccurate positioning and low production efficiency of the welding tooling for thin-walled aluminum alloy complex curved surface parts, the present invention takes the welding of tube-sheet structures with curved interfaces as the object, and proposes a welding tool suitable for thin-walled, curved surfaces, and long welds. The design scheme of the welding deformation control tooling of parts; through optimizing the structure of the tooling, a new type of welding tooling is designed; in addition, the method of using the tooling is introduced
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[0017] In order to further understand the invention content, characteristics and effects of the present invention, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:
[0018] The tooling for suppressing the welding deformation of thin-walled curved aluminum alloy Γ-shaped parts, the degree of freedom in the vertical direction of the skin during welding is determined by the conformal pressing parts on the upper surface and the conformal carcass and positioning blocks on the lower surface. The degree of freedom in the horizontal direction is determined by the pins set on both sides. This design meets the restriction requirements of the degree of freedom when the parts are pressed, and achieves the purpose of reducing welding deformation. The positioning and pressing mechanisms of the skin and cylindrical components meet the rigidity requirements, ensuring accurate positioning of the parts, ensuring the uniform...
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Abstract
The invention relates to a tool and method for restraining welding deformation of a thin-wall curved surface aluminum alloy inverted-L-shaped part, and belongs to the technical field of welding. During welding, the degree of freedom of a skin in the vertical direction is determined through a conformal pressing piece on the upper surface, a conformal matrix and a positioning block on the lower surface, the degree of freedom of the skin in the horizontal direction is determined through plug pins arranged on the two sides, the design meets the limiting requirement for the degree of freedom duringpart pressing, and the purpose of reducing welding deformation is achieved; and positioning and pressing mechanisms of the skin and a cylindrical assembly both meet the rigidity requirement, so thataccurate part positioning is guaranteed, the uniformity of products is guaranteed, the product quality is improved, and the tool is easy to disassemble and convenient to use.
Description
technical field [0001] The invention belongs to the field of welding technology, and in particular relates to a manual argon arc welding tool for aluminum alloy parts with a thin-walled curved surface and a long weld seam and a use method thereof. Background technique [0002] In the aviation industry, aluminum alloys are replacing steel materials as one of the main materials for large aircraft manufacturing due to their excellent specific strength. As the main method of material connection in the field of material processing, welding technology has been widely used in the manufacture of thin-walled aluminum alloy parts in the aerospace field. Due to the high thermal conductivity, poor heat resistance, and large expansion coefficient of aluminum alloys, the welding of thin-walled aluminum alloys is prone to welding deformation, which brings difficulties to the subsequent assembly of parts. At present, there are three main methods to solve the welding deformation of aluminum...
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IPC IPC(8): B23K37/04B23K31/00B23K103/10
CPCB23K31/003B23K37/0435B23K2103/10
Inventor 黄成杰刘艳梅关峰史吉鹏赵兴旺
Owner SHENYANG AIRCRAFT CORP