Which finish symbol indicates machining the weld?

Which finish symbol indicates machining the weld?

• A. Cutting
• B. Grinding
• C. Machining
• D. Finishing

Answer: (C)

Post-weld finishing is about turning the weld into its final shape and size as called for on the drawing. When a finish symbol specifies machining, it means material must be removed with a machine tool to achieve the exact contour, thickness, or surface condition required. Machining is chosen because it provides controlled, precise removal of weld metal to meet tight tolerances and produce a true, flat or stepped surface as specified. Cutting would imply removing material to separate parts or create a feature, not specifically to finish a weld. Grinding is another common finish for smoothing, but it uses an abrasive process rather than a machine-tool removal that defines machining. Finishing is too general and doesn’t specify the method. Therefore, the finish symbol that indicates removing material with a machine tool to finish the weld is the correct one.

Post-weld finishing is about turning the weld into its final shape and size as called for on the drawing. When a finish symbol specifies machining, it means material must be removed with a machine tool to achieve the exact contour, thickness, or surface condition required. Machining is chosen because it provides controlled, precise removal of weld metal to meet tight tolerances and produce a true, flat or stepped surface as specified.

Cutting would imply removing material to separate parts or create a feature, not specifically to finish a weld. Grinding is another common finish for smoothing, but it uses an abrasive process rather than a machine-tool removal that defines machining. Finishing is too general and doesn’t specify the method. Therefore, the finish symbol that indicates removing material with a machine tool to finish the weld is the correct one.