What is the primary function of a chill plate in welding?

The primary function of a chill plate in welding is to absorb excessive heat from the welding process. Chill plates are utilized primarily to control the heat affected zone of the base material, minimizing distortion and helping prevent issues such as warping or cracking due to rapid temperature changes. By drawing heat away from the weld area, the chill plate ensures a more uniform cooling rate, which can contribute to the overall quality and integrity of the weld.

While increasing heat distribution, enhancing weld strength, and protecting against oxidation are all important factors in the welding process, they do not specifically pertain to the unique role of a chill plate. Instead, the chill plate directly addresses the concern of managing heat, making it essential for achieving optimal welding results.