Machining method for thin-wall special-shaped pipe part

Abstract

The invention discloses a machining method of a thin-wall special-shaped pipe part, which comprises the following steps of: fully releasing cutting stress among procedures, supporting and filling the special-shaped pipe part to reduce deformation, optimizing a cutting tool, reasonably distributing a cutting tool path and the like, so that the cutting rigidity of the thin-wall special-shaped pipe part is improved, and the cutting stress is reduced; and the size requirements of shape precision and position precision of the series of thin-wall special-shaped pipe body parts are met.

Description

technical field [0001] The invention belongs to the field of aerospace mechanical processing, and in particular relates to a processing method for thin-walled and ultra-thin-walled special-shaped pipe parts that require high shape precision and are difficult to process. Background technique [0002] Such as Figure 1~3 The air distribution branch pipe parts shown are thin-walled special-shaped pipe parts made of aluminum alloy with a wall thickness of 1-1.5mm. They are air distribution branch pipe parts of the aviation environmental control system and require high shape accuracy and position accuracy. During the first and many years of product manufacturing, conventional processing methods cannot guarantee the design requirements, and the qualified rate is less than 40%. And the processing pass rate is not stable, that is: the parts structure are all special-shaped thin-walled easily deformable parts, the shape accuracy and position accuracy of this series of parts are high,...

AI Technical Summary

Problems solved by technology

During the first and many years of product manufacturing, the design requirements cannot be guaranteed by conventional processing methods, and the pass rate is less than 40%.

And the processing pass rate is not stable, that is: the parts structure are all special-shaped thin-walled easily deformable parts, the shape accuracy and position accuracy of this series of parts are high, and the wall thickness and dimension requirements are strict, which further increases the difficulty of guaranteeing the processing quality of this series of parts

For a long time, there have been technological bottlenecks in the realization of such parts, which seriously affected the progress of scientific research and production.

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