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 280
FORMING TOOLS 251 FORMING TOOLS The two types of forming cutters commonly used in the screwmachine are shown in Figs. 5 and 6. The circular forming cutter inFig. 5 is usually cut away from J to -^^ inch below center to givesuitable cutting clearance and the center of the tool post on whichit is… … Fig. 5. — Circular Forming Tool the center line of the work. The relative clearance ordinarilyobtained by circular cutters and dovetail tools of the type shown inFig. 6, is indicated in Fig. 7. It is obvious that with a given materialthe larger the diameter of the work the greater the angle of…
Machine-shop practice
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