What does the term "interpass temperature" refer to?

What does the term "interpass temperature" refer to?

• A. The temperature of the weld area between passes during multipass welding
• B. The average temperature of the weld after cooling
• C. The temperature of the base metal before welding
• D. The desired temperature of the filler metal

Answer: (A)

The term "interpass temperature" refers specifically to the temperature of the weld area between passes during multipass welding. In multipass welding, multiple layers of weld metal are deposited to build up the weld joint. Maintaining an appropriate interpass temperature is crucial because it helps ensure proper fusion between the layers and affects the mechanical properties and integrity of the weld. If the temperature is too low, it can lead to issues such as incomplete fusion or the formation of defects like cracking. If too high, it may compromise the microstructure of the weld metal or heat-affected zone. Monitoring interpass temperature is essential for achieving optimal weld quality and preventing defects.

The term "interpass temperature" refers specifically to the temperature of the weld area between passes during multipass welding. In multipass welding, multiple layers of weld metal are deposited to build up the weld joint. Maintaining an appropriate interpass temperature is crucial because it helps ensure proper fusion between the layers and affects the mechanical properties and integrity of the weld. If the temperature is too low, it can lead to issues such as incomplete fusion or the formation of defects like cracking. If too high, it may compromise the microstructure of the weld metal or heat-affected zone. Monitoring interpass temperature is essential for achieving optimal weld quality and preventing defects.