On the Changes in Distribution of Hardness and Structure Caused by Cold Working of Metals and Some Phenomena Related to them (II)

On the Distribution of Hardness and Structure Caused by Cold Drawing and Some Considerations on the Phenomena. (II)

Abstract

The changes in distribution of structure caused by cold drawing were studied microscopically and the different structures appeared at three parts, i. e. the surface, the middle and the centre, respectively. The process of hardness distribution at three steps in the drawing die was clarified. Then the effect of cold drawing and subsequent annealing upon the mechanical properties was studied.