Modeling of thermo-elastic workpiece deformation for compensation of dimensional errors in turning of hard metals

被引：0

作者：

Bähre, D ^{[1
]}

Dollmeier, R ^{[1
]}

Warnecke, G ^{[1
]}

机构：

[1] Univ Kaiserslautern, Inst Mfg Engn & Prod Management, Kaiserslautern, Germany

来源：

TRANSACTIONS OF THE NORTH AMERICAN MANUFACTURING RESEARCH INSTITUTION OF SME, VOL XXVI, 1998 | 1998年

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

During turning of hard metals, cutting heat causes thermo-elastic deformation of the workpiece which results in shape- and dimension deviations. In order to minimize these deviations, control of thermo-elastic deformation is required. The prerequisite for this is knowledge of the influence-cause-effect relationship and the ability to predict workpiece behaviour. For this reason, the workpiece is modeled by means of the finite element method (FEM) and temperature and deformation are simulated by parameter selection. Results of the finite element calculations are compared with results of experimental investigations. Experiments were conducted with hardened steel AISI 4140 and polycristalline cubic boron nitride (PCBN) as cutting material. By means of model-orientated process control, thermally related geometrical workpiece deviations can be reduced by process design and parameter selection, or by correcting the toot path during cutting.

引用

页码：123 / 128

页数：6

共 11 条

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