Machining method for aero-engine high-temperature alloy counterweight blade

• Main Authors: YAN LONGZHI, TANG XIANGWU, YUE JING, CUI GUANGYU, DING HAN, LI BIN, YAN SIJIE, DAI XING
• Format: Patent
• Language: English
• Published: 20.01.2016
• 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 machining method for an aero-engine high-temperature alloy counterweight blade. The machining method includes the following steps that (1) a blade root mortise is cut in a wire cutting mode, specifically, most of the margin of a mortise part of a counterweight blade blank is removed through a wire cutting method; (2) the blade root and the blade form are milled, specifically, the blade root of the blank with the mortise margin removed in a wire cutting mode is upwards vertically clamped on a two-rotary-table five-shaft linkage machining center, then the end surface, the inner arc radial surface, the back arc radial surface, the steam inlet lateral surface and the steam outlet lateral surface of the blade root are machined through a face mill cutter in a rough and fine mode, a profile modeling milling cutter is used for machining a mortise in the steam inlet side and a mortise in the steam outlet side, and finally the adaptation surface of the blade root and the blade form and a blade form surface are machined in a rough, semi-fine and fine mode; and (3) the blade crown is cut in a wire cutting mode. According to the machining method for the aero-engine high-temperature alloy counterweight blade, the clamping frequency, the tool number and the varieties of tools are reduced. Meanwhile, the machining procedure is reasonably planned, reliability of machining is guaranteed, the machining accuracy is guaranteed, the machining efficiency is improved, and the production cost is reduced.