Machining method of high-accuracy thin-wall titanium alloy part with open-type structure

• Main Authors: SHANG JIE, FENG TIANYI, HE XIUMEI, CHEN YIFU, JIA ZHENKAI
• Format: Patent
• Language: Chinese; English
• Published: 12.04.2019
• Subjects: COMBINED OPERATIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention relates to a machining method of a high-accuracy thin-wall titanium alloy part with an open-type structure. By the reasonable technology route of casting molding, shape rough machining,cryogenic treatment, shape semifinishing, hole through and threaded hole machining, the cryogenic treatment and finish machining, the machining of the high-accuracy thin-wall titanium alloy part withthe open-type structure is achieved. According to the machining method of the high-accuracy thin-wall titanium alloy part with the open-type structure, the cryogenic treatment is taken as a heat treatment way of the part, parameters are determined through technological tests, the part is put into cryogenic treatment equipment, the cryogenic treatment equipment is filled with liquid nitrogen, -80 DEG C and -180 DEG C are reached by stages, the part is correspondingly soaked at -80 DEG C and -180 DEG C for two hours, and then the temperature is raised slowly, and the processes are carried out two times; and the toughness