OBJECTIVES This study sought to investigate the patterns of injury resulting from a punch mechanism and to investigate the associated psychopathology present in patients with these injuries. METHODS Retrospective analysis of patients with hand radiographs ordered from the emergency department allowed for identification of patients with a punch mechanism. We recorded injury patterns and querie...

The effect of punch tilting on the mechanism of punch penetration in the die of a rotary tablet machine during the compression cycle was evaluated by installing four displacement transducers on one station of a rotary machine. Two transducers were symmetrically positioned beside the upper punch in the upper turret, and the other two transducers were similarly placed beside the lower punch in th...

This article presents an experimental study of the effects of raised ambient temperature in dies and punches on the compaction of pharmaceutical powders. The experiments use an instrumented hydraulic press having a temperature-controlled enclosure allowing the ambient temperature of die and punch to be varied from 20 to 57 8C. A pharmaceutical powder was compacted at temperatures in this range ...