Large cast stainless steel wing cabin fusion cabin section machining method

A processing method, stainless steel technology, applied in the field of aerospace manufacturing, can solve problems such as difficult to guarantee the consistency of processing accuracy, low processing efficiency, difficulty in clamping and alignment, etc., to improve processing efficiency, low cost, improve processing efficiency and The effect of processing stability

Active Publication Date: 2021-01-29
航天科工哈尔滨风华有限公司
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AI Technical Summary

Problems solved by technology

[0005] The present invention solves the problems of difficult clamping and alignment, low efficiency during processing, easy deformation during processing, low production efficiency and difficulty in ensuring the consist

Method used

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  • Large cast stainless steel wing cabin fusion cabin section machining method
  • Large cast stainless steel wing cabin fusion cabin section machining method
  • Large cast stainless steel wing cabin fusion cabin section machining method

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Experimental program
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specific Embodiment approach 1

[0036] Specific implementation mode one: combine Figure 1-Figure 3 To illustrate this embodiment, a method for processing a large-scale cast stainless steel wing tank fusion cabin in this embodiment includes the following steps:

[0037] Step 1: Preliminary determination of rough machining benchmarks;

[0038] Step 2: According to the rough machining datum and the distribution of cabin margins, level the front and rear end face datums A, B and both side airfoil 1 datums C, D, determine the center datum, and draw the machining cut-off line, quadrant line, and inner cavity of both ends The feature processing cut-off line of each part is aligned according to the dashed line and the rough machining benchmark is processed;

[0039] Step 3: Rough machining the inner cavity of the shape;

[0040] Step 4: Use a vibration aging machine to perform vibration aging treatment once;

[0041] Step 5: Three-dimensional scanning and detection of the changes in shape and position tolerances...

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Abstract

The invention discloses a large cast stainless steel wing cabin fusion cabin section machining method, and belongs to the field of aerospace manufacturing. The machining method solves the problems that according to an existing wing cabin fusion cabin section machining method, clamping and alignment are difficult, the efficiency during machining is low, machining is prone to deformation, the production efficiency is low, and the machining precision consistency is difficult to guarantee. According to the process scheme of the machining method, the method comprises the steps of material preparation, three-dimensional scanning, scribing, benchmark rough machining, shape inner cavity rough machining, inspection, aging treatment, three-dimensional scanning, shape inner cavity semi-finish machining, inspection, aging treatment, inspection, shape finish machining, inner cavity finish machining, high-precision boring, fluorescence detection, finished product inspection and warehousing. According to the machining method, machining is carried out on a wing cabin fusion cabin section, the shape machining efficiency and machining stability of the wing cabin fusion cabin section are effectivelyimproved, and meanwhile the product quality is guaranteed.

Description

technical field [0001] The invention relates to a processing method for a fusion cabin section of a large-scale cast stainless steel wing cabin, belonging to the field of aerospace manufacturing. Background technique [0002] With the rapid development of the aerospace industry, higher requirements are put forward for the performance and reliability of aircraft, which deeply affects the design concept of aerospace products. Large-scale cabin parts of aviation missiles are gradually changing from circular and special-shaped structures to wing cabin fusion structures. The cabin body and wing surface of the wing cabin fusion structure cabin are cast as a whole. Small aerodynamic resistance, large internal volume, light structure, higher strength and high reliability; [0003] The fusion cabin section of the large stainless steel wing cabin is a complex mechanically processed part, which has the characteristics of complex shape structure, large size, narrow inner cavity space, ...

Claims

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Application Information

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IPC IPC(8): B23P15/00
CPCB23P15/00
Inventor 陈鹏强姜帆朱赤坤刘明翟学智张晶徐春东戴占洋
Owner 航天科工哈尔滨风华有限公司
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