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Shapes naming how the joint edges are prepared.
Also known as: Butt weld symbols, Edge preparation symbols
Groove weld symbols describe the preparation cut into the joint edges before welding — square, V, bevel, U or J. The shape drawn is a cross-section of the gap, so the symbol is a small picture of the joint rather than an arbitrary code.
Specify the preparation of the joint edges: square, single or double V, bevel, U or J.
Contexts: Technical drawing
Draw a cross-section of the prepared gap, which is why each symbol looks like the letter its preparation is named after.
Contexts: Technical drawing
A pair of straight or curved lines forming a V, a U or a stepped shape, sitting on a horizontal reference line.