Machining error analysis based on the stiffness of workpiece-fixture system

Fa Ping Zhang; Hou Fang Sun; Guang Ming Yuan; Guang Ming Chen

Machining error analysis based on the stiffness of workpiece-fixture system

Fa Ping Zhang^*, Hou Fang Sun, Guang Ming Yuan, Guang Ming Chen

^*Corresponding author for this work

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Workpiece-fixture stiffness and machining errors are studied. Based on the quasi static force analysis of workpiece, a new method to compute the stiffness of workpiece-fixture system is presented. The classic Hertz contact theory and finite element method (FEM) are made use of, yet the contact analysis in FEM and multi-nonlinear calculations are avoided. A model to predict workpiece machining errors based on the deformation of workpiece-fixture system is provided. In this way much of the time of calculation can be cut down.

Original language	English
Pages (from-to)	1041-1044+1057
Journal	Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume	24
Issue number	12
Publication status	Published - Dec 2004

Keywords

FEM method
Machining errors
Stiffness computation
Workpiece-fixture system

Cite this

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abstract = "Workpiece-fixture stiffness and machining errors are studied. Based on the quasi static force analysis of workpiece, a new method to compute the stiffness of workpiece-fixture system is presented. The classic Hertz contact theory and finite element method (FEM) are made use of, yet the contact analysis in FEM and multi-nonlinear calculations are avoided. A model to predict workpiece machining errors based on the deformation of workpiece-fixture system is provided. In this way much of the time of calculation can be cut down.",

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AU - Sun, Hou Fang

AU - Yuan, Guang Ming

AU - Chen, Guang Ming

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N2 - Workpiece-fixture stiffness and machining errors are studied. Based on the quasi static force analysis of workpiece, a new method to compute the stiffness of workpiece-fixture system is presented. The classic Hertz contact theory and finite element method (FEM) are made use of, yet the contact analysis in FEM and multi-nonlinear calculations are avoided. A model to predict workpiece machining errors based on the deformation of workpiece-fixture system is provided. In this way much of the time of calculation can be cut down.

AB - Workpiece-fixture stiffness and machining errors are studied. Based on the quasi static force analysis of workpiece, a new method to compute the stiffness of workpiece-fixture system is presented. The classic Hertz contact theory and finite element method (FEM) are made use of, yet the contact analysis in FEM and multi-nonlinear calculations are avoided. A model to predict workpiece machining errors based on the deformation of workpiece-fixture system is provided. In this way much of the time of calculation can be cut down.

KW - FEM method

KW - Machining errors

KW - Stiffness computation

KW - Workpiece-fixture system

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SN - 1001-0645

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JF - Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology

IS - 12

ER -

Machining error analysis based on the stiffness of workpiece-fixture system

Abstract

Keywords

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