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ISSN Online: 2377-424X

International Heat Transfer Conference 12
August, 18-23, 2002, Grenoble, France

Cutting temperature estimation using inverse heat conduction techniques

Get access (open in a dialog) DOI: 10.1615/IHTC12.3480
6 pages

Resumo

During machining, high temperatures are developed in the region of the tool cutting edge, and these temperatures have a controlling influence on the rate of wear of the cutting tool and on the friction between the chip and the tool. However, direct measurement of temperature by using contact type sensors at the tool-workpiece interface is impossible in the region due to the cutting movement and the presence of the chip. The use of inverse heat conduction techniques can be a good alternative since this technique takes into account temperatures measured from accessible positions. The inverse technique is based on the conjugated gradient method, adjoint equation and finite volume method. For the heat flux estimation the technique uses temperature measurements in the bottom surface of the tool, opposite to its rake face.