Theoretical Analysis of the Tup-Motion of a Forging Air Hammer

Abstract

In this paper, as a whole the following five items with respect to air hammer could be discussed and their necessity is proclaimed. i. Theory and numerical calculations about characteristics of the tup-motion. ii. Adequate selection of the principal speed of a crank shaft. iii. Measurement for the forging effect of an air hammer by Heim method using a test piece of lead cylinder, or by the final velocity of a single blow of tup. iv. Comparative discussion about the experimental data described in reference (2) and the theoretical analysis of the tup-motion by our study. v. Computation of the efficiency of an air hammer and the motor horse power required to drive it.