Butt welding method of small caliber metallic resistances

Abstract

The invention provides a welding method aiming at the butt welding of small caliber resistances. The method is applicable to the welding of small caliber steel pipes, wire rods and rings, and also applicable to the contact butt welding of small caliber nonferrous metals such as aluminium and magnesium wire rods and pipe products, belonging to the welding technical field. As stainless steel is slow in heat dissipation, the invention proposes a welding technique with intermittent heating and continuous and uneven heat dissipation. The high temperature plastic zone in the welding temperature field obtained by the process is narrow and can be less affected by the contact resistances; the welding shrinkage can be controlled accurately by the process; the welding line moulding has a beautiful appearance; the strength and the through-hole both meet the requirements, thus greatly improving the qualification rate of products.

Description

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AI Technical Summary

Benefits of technology

In summary, it explains how we can reduce the impact caused when an electric arc spot melts during joining materials together with other methods like laser beam welds without affecting their quality. By reducing these influences, technical effect are improved efficiency and accuracy in manufacturing processes involving metal parts joined through fusion techniques such as plasma spray weldings (PWS).

Problems solved by technology

The technical problem addressed in this patents relates to improving the quality and efficiency of weldings made up of fine diameter metallic wire or pipe due to poor electrical conductivity when compared to thick materials such as aluminum alloys. Current methods have limitations including slow response times and difficulty controllably adjustable cooling rates. Additionally, there are challenges associated with maintaining accurate dimensions of the resulting weld temperatures without causing excessive warping under heavy loads applied over long periods of use.

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