Machining method used for aviation composite parts

Abstract

The invention discloses a machining method used for aeronautical composite parts, and relates to the field of aeronautical part machining. The machining method comprises the following steps that S1, atool is clamped on a five-axis numerical control machine tool, and a machining coordinate system is established; S2, the five-axis numerical control machine tool is provided with a diamond coating cutter, and idle running is conducted to confirm whether machining interference exists or not; S3, a part is positioned and fixed; S4, part milling and lug scribing are conducted; S5, primary measurement is performed on the machined part, and a primary measurement report is issued; S6, the part is ground and cleaned; S7, secondary measurement is performed on the part and a finished product measurement report is output; and S8, the part is cleaned and packed with neutral kraft paper after rust prevention. Z-direction one-time cutting is adopted for part trimming, a cutter side blade is used for linkage machining, and the surface quality and the trimming contour precision of trimming are improved, five-axis fixed-angle machining is adopted for a hole in the part, the positioning precision andthe machining efficiency of hole machining are improved, one process from machining to measurement is completed, and the machining efficiency is improved, and the problem that aviation composite materials are difficult to machine is solved, and stable and reliable product quality is ensured.

Description

technical field [0001] The invention relates to the field of aviation parts processing, in particular to a processing method for aviation composite parts. Background technique [0002] High-speed processing of aerospace composite parts, the material is mainly composed of composite materials, with small specific gravity, good rigidity, strong heat resistance, strong thermal shock resistance, bottom thermal expansion coefficient, super corrosion resistance and radiation performance and strength High characteristics, it is an advanced aerospace material; it is mainly formed by laying up, the hardness (HRC53-65) and strength are relatively high, the curvature of the cutting edge changes relatively large, the structure is relatively complex, and it is difficult to process among high-value products. For the first type of parts, the problems of the parts processed by traditional processing methods are that the surface quality of the parts is poor, and the edge of the parts has bulg...

AI Technical Summary

Problems solved by technology

[0002] High-speed processing of aerospace composite parts, the material is mainly composed of composite materials, with small specific gravity, good rigidity, strong heat resistance, strong thermal shock resistance, bottom thermal expansion coefficient, super corrosion resistance and radiation performance and strength High characteristics, it is an advanced aerospace material; it is mainly formed by laying up, the hardness (HRC53-65) and strength are relatively high, the curvature of the cutting edge changes relatively large, the structure is relatively complex, and it is difficult to process among high-value products. For one type of parts, the problems of parts processed by traditional processing methods are that the surface quality of the parts is poor, and the edges of the parts have bulges, delamination, and wire stripping, etc.