NON-FLAT BOTTOM FORMING DIE OF HORIZONTAL SPLIT TYPE

摘要

PROBLEM TO BE SOLVED: To provide a non-flat bottom forming die which is difficult to generate the tension in a bent part even when a large pressure is applied to a non-flat bottom surface, free from any metallic fatigue, capable of increasing the service life of the die, and capable of expanding the service range of a stock such as ceramic. ;SOLUTION: Relating to a non-flat bottom forming die having a non-flat bottom forming part through horizontal splitting, and formed of a non-right angles bent part forming a non-flat bottom on a split-piece junction part, joining surfaces of a lower side of an upper split piece 1 with an upper side of a lower split piece 2 are inclined surfaces corresponding to each other, a lower end of an inner wall of the upper split piece 1 is located on a starting part of the non-flat bottom forming part on the inclined surface of an upper surface of the lower split piece 2, and a bent part (a) can be formed by an inner wall surface of the upper split piece 1 and the inclined upper surface of the lower split piece 2.;COPYRIGHT: (C)1999,JPO