| 摘要 |
PROBLEM TO BE SOLVED: To provide an incremental forming method of a metal plate, which can reduce a dimensional variation amount after forming.SOLUTION: An incremental forming method includes depressing a rod-like tool 10 to a work W, and forming the work W by extending it little by little while moving it, wherein the decreasing rate of the plate thickness TO of the work W after forming is made to be within 35% to 40%. A radius R of the rod-like tool 10, a moving amount P of the rod-like tool 10, and a pressing amount X of one time of the rod-like tool 10 have a relational formula (1). |
