Friction lap welding method for aluminum alloy and ABS material

Abstract

The invention provides a friction lap welding method for an aluminum alloy and an ABS material. The friction lap welding method comprises an earlier stage treatment procedure, a friction lap welding clamping procedure and a friction lap welding procedure. The friction lap welding clamping procedure comprises the step of clamping an aluminum alloy plate and an ABS resin plate on a welding tool workbench clamp in a lap joint manner. A welding tool is friction stir welding equipment with a needle-free welding stirring head. The friction lap welding procedure comprises the steps of starting the welding tool, adjusting a main shaft of the welding tool to enable the needle-free welding stirring head to be perpendicular to the aluminum alloy plate, and rotationally pressing the needle-free welding stirring head into the aluminum alloy plate till the set pressing depth is reached; and then keeping the needle-free welding stirring head at the set pressing depth and enabling the needle-free welding stirring head to move in a surface welding area of the aluminum alloy plate at a constant feeding speed in a rotating state. By means of the method, welding between the aluminum alloy and the ABSmaterial can be achieved, parameter setting is simple, the method is convenient and fast to operate, and the quality of a welding joint is good.

Description

technical field [0001] The invention relates to the field of welding technology, in particular to a method for friction lap welding of aluminum alloy and ABS material. Background technique [0002] Butadiene-acrylonitrile-styrene ((C8H8·C4H6·C3H3N)x) referred to as ABS is an amorphous resin material with a melting point of 170°C and a thermal decomposition temperature of 260°C. It has high mechanical strength and good comprehensive properties. Performance, belongs to "general-purpose plastics". ABS is easy to absorb moisture, has low shrinkage, stable size, easy processing and molding, good processing performance, high smoothness, low cost, and the balance between performance determines the broad application prospects of ABS. As an alloy, aluminum alloy has the characteristics of light weight, high strength, corrosion resistance, non-oxidation and easy forming, and has important applications in the fields of automobiles, aerospace and other fields. [0003] Thermoplastic r...

AI Technical Summary

Problems solved by technology

The solder for brazing needs to be specially developed, the strength of the joint is affected by the solder, the strength is low, and it cannot be used in high temperature environments

Solid phase diffusion welding has a long welding time, low production efficiency, and the formation of brittle phase is greatly affected by welding temperature and time

Friction spot welding for thermoplastic resins and metals has also been researched in recent years, but setting parameters during the implementation process is relatively complicated, and the welded joints of friction spot welding are also limited by size and shape.

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