| 摘要 |
<P>PROBLEM TO BE SOLVED: To carry out press forming of press formed components including the formation elements of deep drawing forming and stretch forming at high forming rate of 10 mm/s or more, which can assure high productivity. <P>SOLUTION: By carrying out the deep drawing forming process at warm temperature of 100-250°C and carrying out the stretch forming process at cold temperature of 50°C or below, a stretched part A is stretch-formed in a cup-shaped bottom part which is subjected to deep drawing forming, and the press forming of the press-formed components including the formation elements of the deep drawing forming and the stretch forming can be carried out at high forming rate of 10 mm/s or more, which can assure the high productivity. <P>COPYRIGHT: (C)2012,JPO&INPIT |
