Abstract
The main reasons for dimensional and geometric errors in workpieces produced on machine tools include low static stiffness of the machine structure, low dynamic performance of feed drives, tool wear and thermal deformations of the tool, machine and workpiece. This paper describes the latest research in analysing and reduction of thermally induced deformations in machine tools which lead to thermal drift displacements between tool and workpiece. A brief introduction to the problem is followed by an analysis of different heat sources and how they deformations. Attention is drawn to measures for reducing thermal drift as a mayor cause of errors in machine tools.
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