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Learning metalworking, metalcraft. Metal trade education. Hobbysmith. WORK IN COPPER: How to Make a Copper Bowl. page 21, Smoothing surface of bowl with planishing hammer. Round ended stake, mushroom stake, hold the bowl over a gas range until it is red all over, then plunge it into cold water. This softening is called annealing. |
Working in Metals by Charles C. Sleffel