Turbine disc tenon tooth composite machining process

• Main Authors: TANG CHANGHUI, GUO CHUANGLI
• Format: Patent
• Language: Chinese; English
• Published: 18.12.2020
• Subjects: COMBINED OPERATIONS; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention discloses a turbine disc tenon tooth composite machining process. The process comprises the following machining steps that a linear cutting procedure is performed, specifically, a turbine disc blank is cut along a tooth crest reference line of a tenon tooth to form a tenon tooth groove with a reserved fine trimming size; broaching is performed, specifically, broaching is performed onthe tenon tooth groove with the reserved fine trimming size until the tenon tooth groove with a preset size is obtained; and after finish broaching is performed, an outer contour of the turbine disctenon tooth is chamfered. The turbine disc tenon tooth composite machining process is high in machining precision, the number of adopted broaching tools is greatly reduced, the machining cost is reduced, the machining efficiency is improved, and the turbine disc tenon tooth surface machining quality and efficiency are guaranteed. 本发明公开了一种涡轮盘榫齿复合加工工艺，其加工步骤为：线切割工序：在涡轮盘坯件上沿榫齿的齿顶基准线进行切割，形成预留有精修尺寸的榫齿槽；拉削工序：在预留有精修尺寸的所述榫槽进行拉削，直到得