This SAE Recommended Practice provides a minimum standard for evaluating squeeze-type resistance spot welding (STRSW) equipment and minimum weld performance criteria for two-sided automotive collision repair welding. This document contains several standardized test methods that are designed for evaluating equipment performance in a laboratory environment.

Purpose

This SAE Recommended Practice provides manufacturers of STRSW equipment with minimum performance criteria for collision damage repairs. Collision repair centers and related businesses will also benefit by having a guideline for selecting STRSW equipment that meets this minimum performance criteria.

Background

The use of STRSW in the automotive collision repair market has continued to grow. STRSW is being used in the collision repair process to help closely duplicate the appearance and function of the original production welds. The proper performance of STRSW is especially critical during a collision, as the welds play an important role in the structural integrity and energy management of the vehicle.