Method and apparatus for deformation of metallic materials as well as deformed metallic materials

摘要

PROBLEM TO BE SOLVED: To obtain a material expressing superplastic characteristics which maintains the initial shape by continuously applying intensive working. ;SOLUTION: This device is composed of a die A, a supporting mechanism B supporting the die A and a rotational mechanism rotating the die A. The die A is provided with a main body 1, four holes which pass through the main body 1 and cross each other in its internal part and a locking means 3a which locks with the four holes and the rotational mechanism. Punches 5 which slide or are freely slidable relatively to the holes and have the length ranging from the end surface of the main body 1 to the crossing part of the holes are arranged in respective holes. The supporting mechanism B is provided with restricting plates 6a, 6b, 6c which restrict the outer end surface having the holes of the main body 1 and holding plates 7a, 7b which hold the main body 1. The rotational mechanism is provided with a locking means which locks the locking means 3a, a rotating means, a connecting means which connects the locking means with the rotating means, a locking means and a means for rotation. Thus, a metallic material is subjected to intensive work.;COPYRIGHT: (C)2000,JPO