Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 659
vertically. The holes in the dies for use in these machines are made larger than the punches by thefollowing formula, expressing the diameter and thickness in sixteenths of an inch : The diameter of PUNCHING AND SHEARING MACHINERY. 629 3567. the die-hole = diameter of punch, plus -fc the thickness…
Mechanical engineering -- Dictionaries
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