Machining method of stainless steel part with aluminum honeycomb core

Abstract

The invention discloses a machining method of a stainless steel part an aluminum honeycomb core. The method comprises the following steps that 1) a part body is mounted on a machine tool workbench through a positioning clamp, the lower surface of the part body is fitted to the upper surface of the positioning clamp, and the fitted plane is taken as a clamping positioning surface; (2) in the process of numerical control machining of the part body, different milling cutters are used for milling different materials in the part body layer by layer, and the milling cutters all carry out cycloid milling; and 3) after milling is completed, burrs are removed, and machining is completed. According to the method, by means of layered machining, it can be guaranteed that the different cutters are usedfor the different materials in a sandwich structure during part machining, and the machining quality is guaranteed; under the condition that fluid cooling liquid cannot be used, cuttings can be automatically taken away in a cycloid milling mode, cooling is sufficient, heat dissipation is guaranteed, conditions are improved, deflection and flutter of the cutters can be reduced, the cutting force is stable, and the service life of the tools is prolonged; and due to effective diffusion of cutting heat, the machining quality and efficiency of parts are improved.

Description

technical field [0001] The invention relates to the technical field of machining and manufacturing of mechanical parts, in particular to a method for processing stainless steel aluminum honeycomb sandwich parts. Background technique [0002] With the development of aviation technology, the requirements of the new generation of aviation equipment are getting higher and higher. The stainless steel aluminum honeycomb sandwich structure has been widely used for its outstanding properties such as light weight, high specific stiffness, high specific strength, high surface finish, and corrosion resistance. As an integral part of the new generation of aviation equipment, stainless steel aluminum honeycomb sandwich parts play a vital role in the development of the entire aviation equipment. At present, stainless steel aluminum honeycomb sandwich parts are usually composed of stainless steel plate, aluminum honeycomb sandwich core and aluminum plate from top to bottom. Due to the diff...

AI Technical Summary

Problems solved by technology

At present, stainless steel aluminum honeycomb sandwich parts are usually composed of stainless steel plate, aluminum honeycomb sandwich core and aluminum plate from top to bottom. Due to the different cutting performance of different materials, the traditional milling method has been unable to complete the stainless steel aluminum honeycomb sandwich parts. CNC machining

The traditional method has the following disadvantages: First, the processing performance of different materials in the sandwich structure is not the same, and different tools need to be used for processing, and the honeycomb structure does not allow the use of liquid coolant, and a large amount of heat is generated during the cutting process, which will cause aluminum honeycomb Melting affects the bonding strength of the honeycomb sandwich structure at the same time; secondly, when processing different materials, the tool and cutting performance are inconsistent, and the parts are prone to deformation, which affects the quality of the parts. At the same time, the tool wears seriously during the processing, which increases the cost of parts processing

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