A workpiece cutting method for obtaining high-integrity surface

A cutting and integrity technology, applied in the direction of metal processing equipment, metal processing machinery parts, manufacturing tools, etc., can solve the problems of low processing accuracy, fatigue spalling, and reduce the surface toughness of parts, so as to improve the processing quality and stabilize the hardening degree , Improve fatigue life and wear resistance

Active Publication Date: 2020-06-30
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Excessive work hardening will reduce the surface toughness of the part and be accompanied by fatigue spalling
[0003] The inventor has also found that the machining accuracy is low by adopting the existing fine cutting method

Method used

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  • A workpiece cutting method for obtaining high-integrity surface
  • A workpiece cutting method for obtaining high-integrity surface
  • A workpiece cutting method for obtaining high-integrity surface

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[0031] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0032] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0033] For the convenience of description, if the words "up", "down", "left" and "right" appear in the present i...

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Abstract

The invention relates to a workpiece cutting method for obtaining a high-integrity surface. The workpiece is subjected to at least one forward finish cutting and at least one reverse finish cut after rough cutting, and each forward finish cut and reverse finish cut uses It is carried out in multiple steps. In two adjacent steps, the cutting of the latter step passes through the machined surface of the cutting step of the previous step. The cutting method of the present invention reduces the residual tensile stress on the surface of the workpiece, reduces the surface roughness, and stabilizes the hardness at a reasonable level. within range.

Description

technical field [0001] The invention relates to the technical field of cutting processing, in particular to a workpiece cutting processing method for obtaining a high-integrity surface. Background technique [0002] Turning is the most common processing method in the field of existing mechanical processing. In the traditional turning process, the feed direction of rough and fine cutting is the same. And finishing cutting is completed in one pass (forward cutting). The inventors found that in traditional turning, the surface of machined parts is mostly residual tensile stress. Studies have shown that surface residual stress significantly affects the fatigue resistance and wear resistance of parts. When the surface residual compressive stress is generated by cutting, the fatigue life of the part is higher; while the surface residual tensile stress is generated, the fatigue strength and wear resistance of the part will be reduced. Chemical and stress corrosion properties. In...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B1/00
CPCB23B1/00B23Q15/013B23Q15/14B23Q16/003
Inventor 李安海孙虎周咏辉
Owner SHANDONG UNIV
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