Continuous cutting residual stress obtaining method and device and storage medium

A residual stress and acquisition method technology, applied in the field of metal cutting, can solve the problems of large residual stress analysis errors, etc., and achieve reliable results, convenient modeling, and high prediction accuracy

Pending Publication Date: 2021-08-24
WUHAN UNIV OF TECH
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned technical deficiencies, provide a continuous cutting residual st

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  • Continuous cutting residual stress obtaining method and device and storage medium
  • Continuous cutting residual stress obtaining method and device and storage medium
  • Continuous cutting residual stress obtaining method and device and storage medium

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[0029] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] see figure 1 , the continuous cutting residual stress obtaining method provided by the embodiment of the present invention comprises the following steps:

[0031] S100, establishing a Lagrangian model of the tool according to the tool parameters of the actual tool;

[0032] S200, establishing an Euler model of the workpiece according to the workpiece processing parameters of the actual workpiece;

[0033] S300. Perform grid division on the Lagrangian model and the Euler model;

[0034] S400. Assemble the Euler model and the Lagrange model according to the divided grid to obtain a coupled ...

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Abstract

The invention discloses a continuous cutting residual stress obtaining method and device and a storage medium. The method comprises the steps that a Lagrange model of a tool is established according to tool parameters of an actual tool; an Eulerian model of a workpiece is established according to workpiece processing parameters of an actual workpiece; grid division is performed on the Lagrange model and the Eulerian model; the Eulerian model and the Lagrange model are assembled according to the divided grids to obtain a coupled Eulerian-Lagrange model; and according to a preset machining condition, the coupled Eulerian-Lagrange model is utilized to simulate the process of cutting the workpiece by the tool so as to realize the extraction of the residual stress. The technical problem of large residual stress analysis errors in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of metal cutting, in particular to a continuous cutting residual stress acquisition method, equipment and storage medium. Background technique [0002] Metal cutting is essentially a complex extrusion process. During the cutting process, the chip layer is squeezed by the tool to produce chips, and flows out along the rake face of the tool. Most of the metal part under the sliding surface forms chips, and other small parts are squeezed by the flank face of the tool. Press to form a new machined surface. It is precisely because of this cutting process that factors such as high pressure, high strain, and high temperature are formed during processing, resulting in residual stress. The existence of unfavorable residual stress will greatly affect the fatigue life of the processed workpiece. Therefore, it is of great significance to study the generation of residual stress during metal cutting and its change duri...

Claims

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Application Information

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IPC IPC(8): G06F30/17G06F30/23G06F119/08G06F119/14
CPCG06F30/17G06F30/23G06F2119/08G06F2119/14
Inventor 庄可佳周胜强高金强翁剑张伟伟
Owner WUHAN UNIV OF TECH
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