Spherical multi-way part multi-process combined integral forming method and spherical multi-way part

A technology of integral forming and multi-pass parts, which is applied in the direction of forming tools, manufacturing tools, metal processing equipment, etc., can solve the problems of not expressing processing methods, etc., and achieve the effect of improving product quality consistency, dimensional accuracy, and uniform wall thickness

Pending Publication Date: 2022-03-29
SHANGHAI SPACE PRECISION MACHINERY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the necking process described in this document, there is no description of the processing method for the ball forming process

Method used

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  • Spherical multi-way part multi-process combined integral forming method and spherical multi-way part
  • Spherical multi-way part multi-process combined integral forming method and spherical multi-way part
  • Spherical multi-way part multi-process combined integral forming method and spherical multi-way part

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Embodiment Construction

[0030] The present invention will be described in detail below in conjunction with specific embodiments. Other characteristics, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the accompanying drawings.

[0031] The following examples will help those skilled in the art to further understand the present invention, but do not limit the present invention in any form. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0032] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or po...

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PUM

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Abstract

The invention provides a multi-process combined integral forming method for a spherical multi-way part and the spherical multi-way part. The method comprises the following steps: S1, a spinning step: carrying out a spinning process on an original plate blank material to obtain a flat-bottom deep cylindrical part; s2, stress annealing: adopting a stress relief annealing process to eliminate the internal stress of the spun material; s3, hydraulic bulging is conducted, specifically, the annealed flat-bottom deep cylindrical part is subjected to hydraulic bulging treatment, and a spherical part with an opening is obtained; s4, a numerical control hole control step, wherein a plurality of prefabricated holes are machined in the spherical part with the opening at a time through the multi-degree-of-freedom numerical control hole control technology, and the spherical part with the opening and the prefabricated holes is formed; and S5, hole flanging and forming are conducted, specifically, the prefabricated hole obtained after numerical control machining serves as the positioning reference, and the spherical multi-way part is formed through hole flanging. By means of the multi-process combined forming technology, seamless integral forming of the spherical multi-way part is completed in a combined machining mode, the wall thickness is uniform, the product quality consistency and the size precision are improved, and integrated forming of multi-way parts with flanging holes of different specifications and different positions can be achieved.

Description

technical field [0001] The invention relates to an integrated forming process technology for multi-way parts of a launch vehicle power system, in particular to a multi-process combined integral forming method for a spherical multi-way part and a spherical multi-way part. Background technique [0002] With the advancement of the aerospace industry's processing and manufacturing level, aerospace products are gradually developing towards reducing the weight of parts and improving product reliability and quality consistency. Traditionally, piece-by-piece manufacturing or overall mechanical processing is used, and products are based on splicing and physical processing. Mainly, the power system parts processed by tailor welding process have weak weld areas, which affect their reliability, and have problems such as difficult control of welding accuracy. [0003] Substantial processing has problems such as low material utilization rate, long processing cycle, and difficulty in reali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21D26/14B21D22/14B21D22/20B21D26/02B21D37/10B23P15/00B23P23/04
CPCB21D26/02B21D26/14B21D37/10B21D22/14B21D22/20B23P23/04B23P15/008
Inventor 候正全冯苏乐杨学勤施军崔国平徐永超周改超
Owner SHANGHAI SPACE PRECISION MACHINERY RES INST
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