Machining method of aircraft large arc-shaped structural part and T-shaped staggered tooth cutter for machining

Abstract

The invention discloses a machining method of an aircraft large arc-shaped structural part and a T-shaped staggered tooth cutter for machining. Firstly, the hard alloy T-shaped staggered tooth cutteris used to machine the part; and the hard alloy T-shaped staggered tooth cutter is designed personally and staggered teeth of a cutting edge of the hard alloy T-shaped staggered tooth cutter are correspondingly arranged on an upper plane and a lower plane of a cutter body. Through the machining method comprising the steps of forged piece preparation, inspection, part rough machining, heat treatment, part finish machining and inspection, the machined part is good in surface quality, the part yield is high, the working efficiency of part machining is high, a bench worker grinding process is reduced, the probability that the part is affected by human factors is reduced and the delivery cycle is shortened.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a processing method for a large arc-shaped structural part of an aircraft and a T-shaped knife with staggered teeth for processing. Background technique [0002] The T-shaped knife is a tool assembled on a milling machine for milling T-shaped grooves and side grooves of workpieces. T-shaped cutters are also called T-shaped milling cutters, semicircular milling cutters, and keyway milling cutters, which can perfectly process T-shaped grooves and side grooves. Normal maintenance of cutting performance at high temperatures. [0003] For example, the Chinese Utility Model Patent No. 200820054142.6 is a patent named T-shaped milling cutter. The disclosed T-shaped cutter includes a handle and a cutter body. 10~12°. After using this tool, the effect achieved is reduced vibration of the machine tool, light cutting, more uniform force on the part, higher efficiency, better...

AI Technical Summary

Problems solved by technology

[0005] 1) The quality of the parts is poor; in the process of processing, because the tool is full of the knife, the force of the tool is relatively large during the processing of the part, and the cutting vibration is obvious, resulting in a large number of spring knife patterns on the processing surface of the part, and the spring knife patterns are distributed in strips. On the surface of the part, it seriously affects the surface quality of the part, and when the knife pattern is serious, the part will be overcut, resulting in poor surface quality of the part processing surface, and it is easy to overcut the inner cavity wall

[0006] 2) There are many residues at the root of the inner cavity; during the machining process, the tool is full of cutting to make the tool vibrate, and residues will appear at the root of the inner cavity wall;

[0008] 4) The processing cycle of the parts becomes longer; the parts are added with a fitter grinding process, and the grinding time is longer, which prolongs the overall processing cycle of the parts

[0009] In addition, the existing processing technology of large arc-shaped structural parts of aircraft has problems such as low efficiency and long processing cycle.

Images