Friction stir and ultrasonic compound welding method of light alloy and resin-based composite

A light alloy, friction stir technology, applied in welding equipment, welding/welding/cutting items, non-electric welding equipment, etc., can solve the problems of changing the microstructure of the base metal, affecting the strength of the joint, reducing the mechanical interlocking ability of the joint, etc. Achieve the effect of increasing temperature and material flow, increasing mechanical interlocking ability, and eliminating the effect of mechanical stirring
CN110653479AActive Publication Date: 2020-01-07SHENYANG AEROSPACE UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENYANG AEROSPACE UNIVERSITY
Publication Date
2020-01-07

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Abstract

The invention relates to a friction stir and ultrasonic compound welding method of light alloy and a resin-based composite. The method comprises the steps that firstly, the surface, making contact with the resin-based composite, in the light alloy is subjected to mechanical processing or electrochemical processing; secondly the light alloy serves as an upper plate, the resin-based composite servesa lower plate, a carbon nano tube composite thin film serves as a middle layer, and the upper plate, the lower plate and the middle layer are placed on a worktable and fixed; thirdly, an ultrasonic system is connected; fourthly, a stirring head is rotated and carries out downward pricking; fifthly, the ultrasonic system is started; and sixthly, after the shaft shoulder of the stirring head and the upper plate are in contact, the stirring head stays for 3 to 120 s, and then, the stirring head moves in the welding seam direction at the speed of 5 to 1000 mm / min until welding is finished. The welding seam width can be increased, the microcosmic mechanical interlocking capacity in the joint is increased, and the joint anti-shearing and stretching property can be improved.
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Description

technical field

[0001] The invention belongs to the technical field of metal and composite material connection, and in particular relates to a friction stir and ultrasonic composite welding method of light alloy and resin-based composite material. Background technique

[0002] As a material with good fatigue resistance, good corrosion resistance and good designability, composite materials have been widely used in the manufacture of structural parts such as aircraft wings and front fuselages, large launch vehicle shells and engine shells. The field of lightweight manufacturing plays an important role and responds well to the global demands placed on environmental protection. Lightweight alloys are also widely used in manufacturing fields such as aerospace and ship transportation. Therefore, the connection of lightweight alloys with composite materials is inevitable. In the connection between light alloys and composite materials, the bonding method requires more complicated ...

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
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