The Prediction Model of Cutting Forces Based on Johnson-Cook’s Flow Stress Model

Hai Tao Liu; Ya Zhou Sun; Ze Sheng Lu; Li Li Han

doi:10.4028/www.scientific.net/KEM.392-394.1

Paper Titles

Preface

The Prediction Model of Cutting Forces Based on Johnson-Cook’s Flow Stress Model
p.1

Adaptive Compensation of Spatial Contour Error Based on Neural Networks in Three-Axis Machining
p.7

Operation Model for Green Manufacturing in the Electronic Industry
p.13

Study on the Property and Driver Mode of High-Speed Dot-Matrix Pulse Jet Generator
p.18

Dynamic Numerical Computation and Optimum Analysis of Robot Chassis Using Finite Element Method
p.25

Application of Partial Least Squares Neural Network in Thermal Error Modeling for CNC Machine Tool
p.30

Design and Implement of Automatic Plastic Gasoline Tank Water-Cooling Equipment and its Control System
p.35

The Analysis and Research about Temperature and Thermal Error Measurement Technology of CNC Machine Tool
p.40

HomeKey Engineering MaterialsKey Engineering Materials Vols. 392-394The Prediction Model of Cutting Forces Based on...

The Prediction Model of Cutting Forces Based on Johnson-Cook’s Flow Stress Model

Abstract:

Thin-walled parts with complex configurations are extensively used in aerospace and precise instrument industry. However, because of low stiffness, cutting forces, clamping forces and residual stresses in cutting have been the main factors influenced on machining accuracy of thin-walled parts. Furthermore, biggish deviation exists between practical finished surface and theoretical value as a result of machining deformation caused by cutting force namely “cutter relieving” phenomenon; besides, direct relation exists between determination of clamping force and generation of machining residual stress and cutting force, so it is necessary to build up accurate cutting force prediction model to improve the machining accuracy of thin-walled parts. Therefore, cutting force prediction model based on Johnson-Cook’s flow stress model and Oxley’s shear angle model has been developed, which takes the property of high strain, high strain ratio in area of cut and high cutting temperature into account fully and determines shear angle more accurately on the basis of force balance principle; with different cutting and tool geometric parameters existing, perform simulation and experiment studies on cutting force prediction model, verify the validity of prediction model and obtain the response rules resulted from cutting force prediction model acting on cutting and tool geometric parameters.

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Key Engineering Materials (Volumes 392-394)

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1-6

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https://doi.org/10.4028/www.scientific.net/KEM.392-394.1

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Online since:

October 2008

Authors:

Hai Tao Liu, Ya Zhou Sun, Ze Sheng Lu, Li Li Han

Keywords:

Cutting Force, Johnson-Cook Stress Model, Orthogonal Cutting, Predicted Model

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