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Vibrational finishing machining method for high-temperature alloy disc parts

A technology for disc parts and superalloys, applied in the field of vibrating finishing of superalloy disc parts, can solve the problems of poor surface integrity, large polishing workload, long cycle, etc., achieve low surface roughness value, solve surface quality problems Poor, uniform surface texture

Active Publication Date: 2020-03-06
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

The traditional processing method uses a turntable to manually polish the open web area
Turntables cannot be used in areas prone to interference, and manual polishing is required. This method has a large polishing workload, long cycle, unstable polishing quality, poor surface integrity, and chaotic surface morphology. At the same time, the personal safety risk of operators is relatively high.

Method used

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  • Vibrational finishing machining method for high-temperature alloy disc parts
  • Vibrational finishing machining method for high-temperature alloy disc parts
  • Vibrational finishing machining method for high-temperature alloy disc parts

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Embodiment Construction

[0034] The present invention will be described in detail below with reference to the drawings and embodiments, but the protection scope of the present invention is not limited by the drawings and embodiments.

[0035] (1) Select the appropriate vibration finishing machine tool. Aeroengine superalloy disc parts, usually with a diameter of 400mm-700mm. figure 1 It is a schematic diagram of a high-temperature alloy compressor disk. As shown in the figure, the diameter of the compressor disk is 580mm, its volume is relatively large, and its overall quality is high. Therefore, a vibration finishing machine tool with parts fixed and clamped in the machine tool should be selected to only realize the contact between the abrasive and the parts, so as to avoid the tumbling and collision caused by the free movement of the parts, resulting in bump damage.

[0036] The vibration finishing machine is a rotary vibration finishing machine with no island in the center, and its unbalanced moto...

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Abstract

The invention relates to the technical field of aero-engine manufacture, in particular to a vibrational finishing machining method for high-temperature alloy disc parts. Vibrational finishing is a free abrasive tumbling and finishing machining technology, and a shock excitation source produced by an imbalance motor drives an abrasive material to perform micro-impact, scratching and grinding on thepart surfaces, so that purposes of improving surface stress states of workpieces, reducing surface roughness values of the parts and improving surface quality of the parts are achieved.

Description

technical field [0001] The invention relates to the technical field of aero-engine manufacturing, in particular to a method for vibrating and finishing high-temperature alloy disk parts. Background technique [0002] Aeroengine disc parts are used as rotor parts, such as compressor discs, grate discs, and turbine discs, which are usually key components. High-pressure compressors and turbine units are used, and the number of them in a single engine can be as many as 8 or more. Its fatigue strength requirements are high, and the surface roughness requirements of the disc body are low. Due to the difficult-to-machine characteristics of high-temperature alloy disc parts, they cannot be directly cut or economically cut to meet the surface quality requirements. The traditional processing method uses a turntable to manually polish the open web area. In areas prone to interference, turntables cannot be used, and manual polishing is required. This method has a large polishing workl...

Claims

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Application Information

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IPC IPC(8): B24B1/04B24B31/06B24B31/12B24B41/06
CPCB24B1/04B24B31/003B24B31/064B24B31/12B24B41/06
Inventor 佟春雷杨楠杨金发周雨辰赵天杨
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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