Interpass temperature is defined as what?

Interpass temperature is defined as what?

• A. The maximum permitted temperature between passes to avoid defects and ensure metallurgical stability
• B. The ambient temperature
• C. The temperature of shielding gas
• D. The welding current

Answer: (A)

Interpass temperature is the temperature of the weld area between successive passes in a multi-pass weld. This value is kept within a maximum limit specified in the welding procedure or code to avoid defects and ensure metallurgical stability. Controlling it is important because if the area between passes stays too hot, it can cause grain growth, changes in the heat-affected zone, and increased risk of cracking, which can compromise the next pass’s fusion and the overall weld quality. By maintaining the interpass temperature within the allowable range, you help preserve the intended microstructure, strength, and toughness. The other options describe unrelated temperatures or parameters that do not define the temperature between weld passes.

Interpass temperature is the temperature of the weld area between successive passes in a multi-pass weld. This value is kept within a maximum limit specified in the welding procedure or code to avoid defects and ensure metallurgical stability. Controlling it is important because if the area between passes stays too hot, it can cause grain growth, changes in the heat-affected zone, and increased risk of cracking, which can compromise the next pass’s fusion and the overall weld quality. By maintaining the interpass temperature within the allowable range, you help preserve the intended microstructure, strength, and toughness. The other options describe unrelated temperatures or parameters that do not define the temperature between weld passes.