Crankshaft forging stock machining method

• Main Authors: SHEN XIANGYE, WANG ZHANFENG, LU JINZHONG, XIA CAITAO, LUO KAIYU
• Format: Patent
• Language: Chinese; English
• Published: 07.03.2023
• Subjects: COMBINED OPERATIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The crankshaft forging stock machining method comprises the following steps that S1, the end faces of the two ends are milled, and a center hole is drilled; s2, roughly turning the rod body and then finely turning the rod body; s3, turning a groove, an intermediate shaft rod body and an end face; s4, milling a connecting rod neck and an inner sector; S5, milling a plane, drilling a deep hole, an inclined oil hole, a guide hole and a threaded bottom hole, and tapping threads; s6, an oil hole is drilled, and a hole opening is chamfered; s7, heat treatment; s8, the rod body of the intermediate shaft is finely ground, and burrs are removed; s9, nitriding treatment, dynamic balance de-weighting and laser shock peening treatment; and S10, polishing, carrying out magnetic powder inspection, carrying out repeated laser shock peening treatment on the defect part, cleaning and smearing anti-rust oil. According to the method, the steps of semi-finish machining, introduction of a new technology and re-planning of machini