A method of manufacturing a crankshaft

• Main Authors: HAJIME GOTO, YOSHIMASA TANIGUCHI, MITSUO KOTSUKI, SHINJI UENO
• Format: Patent
• Language: Chinese; English
• Published: 12.10.2016
• Subjects: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMBINED OPERATIONS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; UNIVERSAL MACHINE TOOLS

A method of manufacturing a crankshaft according to the present invention is a method of manufacturing a crankshaft including a step of applying a predetermined roll to rounded corners (7, 9) of an axial end of a crank journal portion (3a to 3e) and an axial end of a crank pin portion (5a to 5d) (6) of the crank pin portions (5a to 5d), and a circle of the respective axial ends of the crankshaft journal portions (3a to 3e) after completion of the rolling process, And the corner portions (7, 9) are subjected to high-frequency quenching. 本发明的曲轴的制造方法具有如下工序：对曲轴轴颈部(3a～3e)的轴向端及曲轴销部(5a～5d)的轴向端的圆角部(7、9)施加规定的滚压加工的工序；在完成滚压加工后，对曲轴轴颈部(3a～3e)的滑动面(4)、曲轴销部(5a～5d)的滑动面(6)，以及各轴向端的圆角部(7、9)实施高频淬火的工序。