 | Fred Herbert Colvin, Frank Arthur Stanley - Machine-shop practice - 1910 - 166 pages
...required shape by being pressed directly down into the die by the punch. Blanking Dies — (Fig. 141). Blanking dies are about the most commonly used of...simultaneously, they are known as multiple blanking tools. Drawing Dies, Plain — (Fig. 142). Dies of the type shown can be used for shallow drawing only, as... | |
 | Fred Herbert Colvin, Frank Arthur Stanley - Machine-shop practice - 1910 - 168 pages
...required shape by being pressed directly down into the die by the punch. Blanking Dies — (Fig. 141). Blanking dies are about the most commonly used of...simultaneously, they are known as multiple blanking tools. Drawing Dies, Plain — (Fig. 142). Dies of the type shown can be used for shallow drawing only, as... | |
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The strip of sheet metal is fed under the stripper and is prevented by that member from lifting with the punch upon the up-stroke, following the punching out of the blank. Where several punches are combined in one hole for blanking as many pieces simultaneously,... 