Answer :
Final answer:
The first weld in a joint, which establishes contour and penetration depth, is called the root weld. This weld is essential for joining two pieces securely. Other weld types, like filler and cap welds, serve different purposes in the welding process.
Explanation:
Understanding Welding Joints
In welding, the term used to describe the first weld in a joint that establishes the contour and depth of penetration is known as the root weld. This weld is crucial as it lays the foundation for the rest of the welding process. It typically involves a smaller depth of penetration and is designed to secure the two pieces being joined from the base, ensuring a solid initial connection.
Here are details about the welding terms mentioned:
- Root Weld: The primary weld in a joint, establishing depth and contour.
- Filler Weld: Added material that fills the gap between the pieces.
- Cap Weld: The final layer applied over the root and fill welds, creating a smooth finish.
- Cover Weld: Provides additional protection or support at the surface.
Understanding the role of the root weld is essential for achieving strong, reliable welded joints in engineering applications.
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