Civil Engineering Association

This is the second edition of CSA W55.3, Certification of companies for resistance welding of steel and aluminum. It supersedes the first edition, published in 1965 under the title Resistance Welding Qualification Code for Fabricators of Structural Members Used in Buildings.

This edition includes the following changes:

(a) broadening of the scope to include both steel and aluminum, as well as non-structural applications;

(b) alignment with CSA W47.1, including introduction of three divisions of certification; and

© editing of the terminology to bring this Standard in line with other CSA Standards and with the terms and definitions of the American Welding Society.

This Standard stipulates the minimum requirements that a company must meet and adhere to in order to obtain and maintain certification in the area of resistance welding. Certification is granted by the Canadian Welding Bureau, the administrative body of this Standard. Certification indicates that, consistent with the requirements of the division in which the company is certified, the company has the organization, personnel, welding procedures, equipment, and process control system required to produce satisfactory welds and welded assemblies using resistance welding processes.

This Standard was prepared by the Technical Committee on Certification of Companies for the Welding of Steel and Aluminum, under the jurisdiction of the Strategic Steering Committee on Welding and Structural Metals, and has been formally approved by the Technical Committee.