American machinists' handbook and dictionary of shop terms : a reference book of machine shop and drawing room data, methods and definitions (1914)
Colvin, Fred H. (Fred Herbert), 1867-1965, Stanley, Frank A. (Frank Arthur), b. 1874 · New York : McGraw-Hill book company ; London : Hill · leaf 622
located within the locatingportion of piercing die E. At thenext stroke the hole in the center is pierced with punch F, anda second shell drawn in the stock by punch and die C and D,The stock is then fed forward another space and the blankingpunch G cuts out the piece from the metal. At the same… … I a2^^ holder for making as many openingsin a blank at one stroke of the press.Sometimes dies which perform a num-ber of operations on a piece which isfed along successively under one punchafter another are called gang dies;strictly speaking, however, such toolsare follow dies. Where a large…
Machine-shop practice
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