What is the purpose of a chill strip?

What is the purpose of a chill strip?

• A. To pull the heat away from a metal
• B. To add heat
• C. To strengthen the weld
• D. To insulate

Answer: (A)

Chill strips serve to manage heat during welding. They act as heat sinks, drawing heat away from the weld zone into a high-thermal-conductivity strip placed near the joint. By pulling heat out, the weld area cools more quickly, helping control penetration and bead shape, reducing the risk of overheating in thin materials, and limiting distortion in the surrounding metal. They do not add heat, do not inherently strengthen the weld, and are not insulating—their job is to conduct heat away from the weld.

Chill strips serve to manage heat during welding. They act as heat sinks, drawing heat away from the weld zone into a high-thermal-conductivity strip placed near the joint. By pulling heat out, the weld area cools more quickly, helping control penetration and bead shape, reducing the risk of overheating in thin materials, and limiting distortion in the surrounding metal. They do not add heat, do not inherently strengthen the weld, and are not insulating—their job is to conduct heat away from the weld.