Method for processing part with thin wall and changed-angle curved surface appearance

Abstract

The invention relates to a method for processing a part with a thin wall and a changed-angle curved surface appearance, which comprises the basic step of conducting front face and reverse face alternate equal thickness feeding milling. The method is characterized by a firstly determining first axial cutting depth A and a milling bearing width B on the front face; secondly enabling an front face axial cutting depth to be A and enabling a reverse face axial cutting depth to be A+B after being turned over; thirdly enabling an axial cutting depth to be 2B after being repeatedly turned over until a surplus width of the front face and the reverse face to be less than 2B, and then directly conducting balance finish-milling and putting in place. The method adopts an axial unequal height circumferential cutting method, enables the part to be evenly stressed in a cutting process and enables stress release of a material to be even, thereby effectively controlling the deformation problem of the part with the thin wall and the changed-angle curved surface appearance.

Description

technical field [0001] The invention relates to a processing method of a thin-wall variable-angle curved surface shape part, which belongs to the field of mechanical processing. Background technique [0002] Due to the requirements of strength and assembly, there are many thin-walled and variable-angle curved surface parts in the current aviation machining field. In the development and production, technicians usually process the inner shape first and then the outer shape according to the traditional machining method. This processing method makes the parts stress uneven and the stress release of the material is uneven, which leads to the deformation of the parts, thus affecting The size of the machined parts has a relatively low pass rate. Or use tooling to support the inner shape of the part in an attempt to control the deformation of the part. However, in the development and production, the designed parts often need one or two design changes. In this case, the tooling will...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a processing method for thin-walled variable-angle curved surface shape parts. The method adopts the circular cutting method with unequal axial height, so that the parts are evenly stressed during the cutting process, and the stress release of the material is also easy. Relatively uniform, thus effectively controlling the deformation of thin-walled variable-angle curved surface parts

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