PRESS MOLDING METHOD FOR TUBULAR COMPONENT, AND PRESS MOLD FOR USE IN THE SAME

• Main Authors: TAKUMI YUKI, FUKUSHIMA MASAHIKO, FUJII TAKASHI
• Format: Patent
• Language: English; Japanese
• Published: 18.10.2018
• Subjects: MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PUNCHING METAL; TRANSPORTING; WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL

PROBLEM TO BE SOLVED: To provide a press molding method that enables molding of a modified cross-section tubular component.SOLUTION: A press molding method for a different-diameter cross-section tubular component 1 includes: a U-bending step of molding a bottom 11 and a pair of vertical wall parts 12 that are raised from both ends of the bottom 11; an intermediate bending step of molding a bent part 12a in each of the vertical wall parts 12 by making ends 12f of the pair of vertical wall parts 12 butt against a locking part 21b provided in an intermediate bending molding 20 and pressing them; and a final bending step of molding the tubular component 1 by making the ends 12f of the pair of vertical wall parts 12 butt against each other.SELECTED DRAWING: Figure 1 【課題】異形断面の管状部品を成形可能なプレス成形方法を提供する。【解決手段】異径断面の管状部品１のプレス成形方法は、底部１１及び底部１１の両端から立ち上がった一対の縦壁部１２を成形するＵ曲げ工程と、一対の縦壁部１２の端部１２ｆを中間曲げ金型２０に設けられた係止部２１ｂに突き当ててプレスすることにより、各縦壁部１２に曲げ部１２ａを成形する中間曲げ工程と、一対の縦壁部１２の端部１２ｆ同士を突き合わせて管状部品１を成形する最終曲げ工程とを有する。【選択図】図１