Anti-deformation device for Invar alloy material welding

An alloy material, anti-deformation technology, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve problems such as difficulty in orthopedics, deformation, and inability to adapt to needs, to overcome large deformation after welding, ensure high precision, and deformation. small effect

Inactive Publication Date: 2019-03-26
XIAN AIRCRAFT IND GROUP
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0003] The multi-layer and multi-pass welding used in the molding of Invar alloy thick plate molds, the deformation after welding is serious, and the correction is very difficult.
Common deformation control methods such as rigid fixation, cooling with welding, and post-weld correction cannot meet the needs

Method used

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  • Anti-deformation device for Invar alloy material welding
  • Anti-deformation device for Invar alloy material welding
  • Anti-deformation device for Invar alloy material welding

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Embodiment Construction

[0011] The present invention provides an anti-deformation method for welding Invar alloy materials. In order to make the purpose, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific implementations described here are only used to explain the present invention, not to limit the present invention.

[0012] The present invention will be described in further detail below through specific embodiments and in conjunction with the accompanying drawings.

[0013] The welding base material is Invar alloy plate 2 with a Ni content of 35.87%, with a size of 100mm×50mm×19.05mm, a 60°V-shaped groove, a blunt edge thickness of 1mm, and a spacing of 1mm; the welding wire is Invar M93, and the Ni content is 35.87%. 1.2mm in diameter. The flow rate of 99.9% Ar atmosphere is 15L / min; the welding equipment is KUKA robot...

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Abstract

The invention relates to an anti-deformation device for Invar alloy material welding. The anti-deformation device comprises the following steps: welding the base metal namely the Invar alloy plate andforming a 60-degree V-shaped groove, wherein the thickness is 19.05 mm, the thickness of a truncated edge is 1 mm and the gap is 1 mm; placing an Invar alloy die on a welding platform, enabling the other end of the die to be in contact with a thin steel sheet, and enabling the die and the welding platform to form an included angle phi of 4.6 degrees to eliminate deformation after welding; and after clamping, carrying out a 4-layer 9-pass welding test. According to the anti-deformation device, through aiming at the problem about serious deformation after welding caused by the multi-layer and multi-pass welding adopted for forming the Invar alloy thick plate die, a joint with excellent welding seam forming and without obvious welding deformation is obtained through prearranging an anti-deformation angle before welding is obtained, so that a solid foundation is laid for the following die production and application.

Description

technical field [0001] The invention relates to an anti-deformation method for Invar alloy materials before welding, and belongs to the technical field of nickel-based alloy welding deformation control. Background technique [0002] Due to a series of advantages such as small specific gravity, high strength, and good fatigue performance, composite materials can bring comprehensive benefits such as reducing the body structure, extending maintenance intervals, and reducing operating costs when applied to aerospace products, so they become one of the key materials for large aircraft manufacturing. one. Composite parts are compounded and finally formed in the mold, and the outer surface of the formed part does not need any processing, which puts forward certain requirements for the mold material: stability under changing temperatures, compatibility with composite materials Consistent thermal expansion coefficient, good stability in vacuum environment and low manufacturing cost,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K31/00B23K31/02B23K37/00B23K37/04
CPCB23K31/003B23K31/02B23K37/00B23K37/0443
Inventor 赵安安潘超郝巨占小红陈博杨超
Owner XIAN AIRCRAFT IND GROUP
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