Machining method for deformation control of high-precision thin-wall cylinder shaft

A processing method and technology of thin-walled tubes, applied in the direction of manufacturing tools, metal processing equipment, metal processing machinery parts, etc., can solve the problems of no processing technology, etc., achieve the effect of poor machinability, optimized cutting parameters, and strict technical requirements

Inactive Publication Date: 2017-02-22
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This kind of workpiece has never been processed before, and it is the...

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  • Machining method for deformation control of high-precision thin-wall cylinder shaft
  • Machining method for deformation control of high-precision thin-wall cylinder shaft
  • Machining method for deformation control of high-precision thin-wall cylinder shaft

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Embodiment 1

[0025] This embodiment provides a processing method for controlling deformation of a high-precision thin-walled cylindrical shaft, which is characterized in that: the processing method for controlling deformation of a high-precision thin-walled cylindrical shaft is:

[0026] 1) Determine the process plan: because the workpiece is a thin-walled part, it is necessary to consider controlling deformation when starting to formulate the process route;

[0027] The material of the workpiece is a high-temperature alloy. The cutting force is large during processing, and it is easy to accumulate a large amount of machined stress. In order to minimize the influence of machined stress on the deformation of the workpiece, the process route arranges two stress-relieving heat treatments: after the ultrasonic surface of the car, After rough turning, there is a margin of 2 to 3 mm left on each side of the workpiece, the workpiece has a lot of material removed, and the accumulated mechanical str...

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Abstract

The invention discloses a machining method for deformation control of a high-precision thin-wall cylinder shaft. A process scheme is determined: because a workpiece belongs to a thin-wall piece, the deformation control needs to be considered at the beginning of formulating a process route, the influence on deformation of the workpiece by machining stress in finish turning is controlled; an anti-deformation fixture structure is determined: a workpiece clamping mode is researched; a fixture clamping scheme is improved; a special anti-deformation fixture is used for finely turning inner and outer molded surfaces and machining a large end surface hole groove and a small end surface hole groove to solve the deformation problem caused in workpiece machining; the large end surface is axial reference of the whole workpiece to reach high precision requirement; and the small end surface is higher in technical condition requirement on the large end surface. The machining method has the following advantages: the technical difficulty of deformation of a high-temperature alloy thin-wall cylinder shaft is solved, a qualified workpiece is finally machined, the technical bottleneck of deformation of the high-temperature alloy thin-wall cylinder shaft is broken through, the workpiece design requirements are guaranteed, and the machining method can be popularized and applied in the same kind of workpieces to provide precious experiences for similar workpiece machining.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a processing method for controlling deformation of a high-precision thin-walled cylindrical shaft. Background technique [0002] In mechanical processing technology, especially in the processing and manufacturing of high-precision superalloy thin-walled cylindrical shaft workpieces, deformation has always been a major technical difficulty, which seriously affects the pass rate of workpieces. This kind of workpiece has never been processed before, and it is the first contact, and there is no similar processing technology for reference. The high temperature alloy cylinder shaft workpiece is an important part, with high dimensional accuracy, many and extremely strict technical requirements, and the wall thickness of the entire profile is only 1.8-2mm. The workpiece material is a high temperature alloy, which is a difficult-to-machine material. There is always a large ...

Claims

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Application Information

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IPC IPC(8): B23P15/00B23Q3/00B23Q3/06
CPCB23P15/00B23Q3/00B23Q3/062B23Q2703/10
Inventor 郑琪然姜雪梅文国军邓昶
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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