Benjamin, Charles Henry, 1856- [from old catalog], Hoffman, James David, 1868- [from old catalog] joint author · New York, H. Holt and company · leaf 303
ere treated, to a small compactand possibly solid section. The latter condition prevails in somemachines where the gap is long and the main section would benecessarily crowded into the smallest space. Steel cast frames are very common, especially on the largermachines. When made of steel the frame… … ^—D Fig. 137. 146. The Maximum Punching or Shearing Force is used incalculating the frame sections. The ultimate shearing stress ofthe metal multiplied by the area to be cut gives the maximumload on the punch or flat shear. If the maximum load on ahevel shear is desired, multiply the maximum load…
Machine design
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