CRANK SHAFT MANUFACTURING METHOD

• Main Authors: TAMURA KENJI, YABUNO KUNIHIRO, OKUBO JUNICHI, NAKANO RYUSUKE, OTA YUKIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 19.04.2022
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; FORGE FURNACES; FORGING; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HAMMERING; HEATING; LIGHTING; MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES,RIVETS, BOLTS OR WHEELS; MECHANICAL ENGINEERING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; PERFORMING OPERATIONS; PRESSING METAL; PUNCHING METAL; RIVETING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS

To provide a crank shaft manufacturing method comprising preliminarily molding steps in which volume distribution of a material can be performed more precisely.SOLUTION: A crank shaft manufacturing method comprises first-third preliminarily molding steps. In the first preliminarily molding step, a p...