Processing method for annular type engine-case radial narrow groove

A processing method and narrow groove technology, applied in metal processing equipment, manufacturing tools, milling machine equipment details, etc., can solve the problems of low quality and low processing efficiency of radial narrow grooves in annular casings, so as to improve quality and speed up Development progress and the effect of improving processing efficiency

Active Publication Date: 2015-04-01
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings of the prior art, the present invention proposes a method for processing radially narrow grooves of annular casings, so as to solve the problem of low processing efficiency and low quality of radially narrow grooves of annular casings

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  • Processing method for annular type engine-case radial narrow groove
  • Processing method for annular type engine-case radial narrow groove
  • Processing method for annular type engine-case radial narrow groove

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Embodiment Construction

[0025] An embodiment of the present invention will be further described below in conjunction with the accompanying drawings.

[0026] The existing technology requires pre-drilling, rough grooving, fine milling and other processing processes. During this process, the strokes of the empty tool are more, and the processing efficiency is low; During the processing process, the high-efficiency processing state of small depth of cut and large feed is always maintained, thereby improving the processing efficiency of parts, reducing the time of human intervention, and ensuring the processing dimensional accuracy.

[0027] In the embodiment of the present invention, the processing method of the radial narrow groove of the annular casing, the method flow chart is as follows figure 1 shown, including the following steps:

[0028] Step 1. Select the tool according to the width of the narrow groove to be processed, and the diameter of the selected tool is larger than the width of the narr...

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Abstract

The invention discloses a processing method for annular type engine-case radial narrow groove, and belongs to the field of machinery manufacture. In consideration of the integral rigidity of a part, the method employs a layered progressive helix-track one-time milling mode for realizing small cutting depth and high feeding, fully gives play to the cutting performance of a cutter, improves the processing efficiency, guarantees the processing dimension, and successively solves the problems that numerical-control milling processing of the annular type engine-case radial narrow groove is low in efficiency and not high in quality. Also the method is applicable to processing of narrow grooves with any shapes. Along with application of the technology to annular type engine-case parts, the processing method determined by the technology possesses guidance meaning, and provides good establishment for accelerating research progress of novel aviation engines and reducing research cost. From another point of view, the method creates relatively large value for improving efficiency, reducing cost and improving quality of aviation engines in the future and being applied to large-batch production.

Description

technical field [0001] The invention belongs to the field of mechanical manufacturing, and in particular relates to a processing method for a radial narrow groove of an annular casing. Background technique [0002] The processing characteristics of radial narrow grooves account for a large proportion in the machining of aero-engine annular casing parts. The structure of this kind of parts is generally a conical rotary body, with thin wall thickness, small groove width, long actual groove depth, and the width-to-depth ratio of the groove is more than 3 times; the external space is narrow, the opening is not good, and the tool overhangs Longer; the number of slots is large, between 100-300. [0003] The traditional processing method first pre-drills the bottom hole, then rough grooves, and finally fine-mills the groove shape. It is not high, resulting in low processing efficiency, and the quality of the groove width is not easy to guarantee, and manual measurement is require...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C3/28B23C3/30
CPCB23C3/28B23C3/30B23C2220/36
Inventor 刘德生金耀兴赵明赵天杨
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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