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Manufacturing process for high-curvature full-profile thin-wall part

A manufacturing process and large curvature technology, which is applied in the manufacturing process of large-curvature full-shaped thin-walled parts, can solve problems such as processing deformation and vibration of thin-walled curved surfaces in ultra-complex spaces, and achieve enhanced clamping stability and processing rigidity. Controlling the effect of NC program quality, verifying correctness and rationality

Active Publication Date: 2014-03-19
江西洪都航空工业股份有限公司
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a manufacturing process of large-curvature full-shaped thin-walled parts to solve the processing deformation and vibration problems of thin-walled curved surfaces in ultra-complex spaces

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  • Manufacturing process for high-curvature full-profile thin-wall part

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Embodiment Construction

[0029] Attached below figure 1 The present invention is described further, as attached figure 1 As shown, the large-curvature full-surface thin-walled structural member involved in the present invention is composed of an outer cavity profile 1, an inner cavity profile 2, and an inner cavity V-shaped groove 3. Rib support surface area up to 0.397m 2 , The effective depth of the profile is 196mm, the groove of the profile is deep and narrow, in a V-shaped layout, the opening angle of the groove is about 30°, and the depth is 100mm.

[0030] The invention discloses a manufacturing process of large-curvature full-surface thin-walled structural parts, which uses five-coordinate high-speed milling to perform rough machining of the outer cavity profile, rough machining of the inner cavity profile, semi-finishing and finishing of the inner cavity profile, and outer cavity profile machining. Surface semi-finishing and finishing machining, fitter polishing, clamping and positioning b...

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Abstract

The invention provides a manufacturing process for a high-curvature full-profile thin-wall part so as to solve the problem of processing deformation and vibration of an ultra-complex spatial thin-wall curved surface. By reasonable process layout, a segmented layer-by-layer processing mode is adopted, an appropriate cutter and a cutter handle are selected, working allowance of every process is set, natural aging time is set, cutting process parameters and feeding strategies are optimized, the uniform material removal amount of the part is guaranteed, an adding cushion block location and gypsum filling method is adopted simultaneously, the problem of clamping difficulty and vibration in part processing is solved, processing rigidity and clamping stability of the part are improved, deformation in the part processing process is controlled, and the part size and precision are guaranteed.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a manufacturing process of a large-curvature full-profile thin-walled part. Background technique [0002] The processed part is a serpentine air intake lip of an aircraft with a triangular overall structure, which is a large-curvature full-profile thin-walled structural part. The shape of the part is complex, and the curvature changes greatly. The inner cavity is connected with the skin of the cylinder, and the outer cavity is connected with multiple skins of the front fuselage. Structurally, the inner cavity and the outer cavity must be processed to connect with the skin. The connection surfaces between the inner cavity and the skin of the barrel body, and the outer cavity and the skin of the front fuselage are all spatial curved surfaces, which are difficult to process and locate, and the grooves on the profile are deep and narrow, in a V-shaped layout, and the op...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P15/00
CPCB23C3/00B23C2215/04B23P15/00B23P2700/01
Inventor 曹爱萍欧阳承黎明向兵飞徐明兰惠廖翔周造文
Owner 江西洪都航空工业股份有限公司
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