METHOD FOR MANUFACTURING FORGED CRANKSHAFT

• Main Authors: HORI, Masao, OKUBO, Junichi, TAMURA, Kenji, NAKANO, Ryusuke, YOSHIDA, Kunihiro, HWANG, Samsoo
• Format: Patent
• Language: English; French; Japanese
• Published: 22.09.2016
• Subjects: FORGE FURNACES; FORGING; HAMMERING; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PRESSING METAL; PUNCHING METAL; RIVETING; TRANSPORTING

A method for manufacturing a forged crankshaft includes a first preparatory forming step, a second preparatory forming step, and a final preparatory forming step. In the second preparatory forming step, an intermediate preform is obtained by reduction of an initial preform (23) in a pair of first di...