A weld pool refers to the molten metal pool that forms during the welding process at the joint between two workpieces. When heat is applied (via welding techniques such as MIG, TIG, or arc welding), it melts the base materials and the filler metal (if used), creating a liquid pool. Key characteristics of the weld pool include: 1. **Temperature**: The weld pool reaches extremely high temperatures, allowing the materials to melt and fuse together.
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