Abstract
The effect of grain size upon work-hardening, workability and the earing in the commercially pure aluminium sheets were investigated. Results obtained are as follows:
(1) The sheets cold rolled from the fine grain stock poccesses have superior mechanical properties than those rolled from the coarse grain one, but the degree of hardening of the former is smaller than that of the latter.
(2) The grain size of aluminium sheets affects remarkably upon the workability, however, it has nothing to do with the earing.
