Machines And Tools Employed in the Working of Sheet Metals
Machines And Tools Employed in the Working of Sheet Metals
Richard Broom Hodgson
The book Machines And Tools Employed in the Working of Sheet Metals was written by author Richard Broom Hodgson Here you can read free online of Machines And Tools Employed in the Working of Sheet Metals book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Machines And Tools Employed in the Working of Sheet Metals a good or bad book?
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Thick at part T, and hollowed out the same as B to fit half section of the steel rod R. These tools may be fitted to either a hand or power press, and the face of P would slide up and down against face of B, in the position as shown in fig. 134, thereby forming an efficient form of chopping or shearing set of tools. Both punch and die may be made perfectly square, no bevel being required upon either. DRAWING AND RE-DRAWING. 127 CHAPTER XI. DRAWING AND RE-DRAWIXG. DRAWING proper refers to the cu...pping of a blank, as in cutting and cupping processes, or in taking any piece of sheet metal in the form of a blank, and producing therefrom any cup-like shape during which process a flowing of the metal takes place. The term re-drawing applies to any subsequent drawing processes that follow the first drawing or cupping process as would occur in the manufacture of a cartridge shell or similar work. For instance, if any blank be cupped it may FIG. 135. be said to have been drawn or had its first drawing.
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