A kind of processing method of stainless steel aluminum honeycomb sandwich parts

Abstract

The invention discloses a processing method for a stainless steel aluminum honeycomb sandwich part, comprising the following steps: 1) installing the part body on a machine tool workbench through a positioning fixture, making the lower surface of the part body fit the upper surface of the positioning fixture, The plane is used as the clamping positioning surface; 2) In the process of machining the part body with CNC, different milling cutters are used to mill different materials in the part body in layers, and the milling cutters are all trochoidal milling; 3) After the milling is completed , remove the burrs and complete the processing. The present invention can ensure that when parts are processed, different materials in the sandwich structure use different cutting tools to ensure the processing quality through layered processing; in the case where liquid coolant cannot be used, the trochoidal milling method can automatically take away the chips, and the cooling is sufficient. Ensure heat dissipation, improve conditions, reduce tool deflection and chatter, stabilize cutting force, and improve tool life; effective diffusion of cutting heat improves the processing quality and efficiency of parts.

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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