Research on Cutting Temperature of Workpiece in Milling Process Based on WPSO

Abstract

Abstract: The time distribution principle of workpiece cutting temperature in milling process is investigated. The mathematical model of heat conduction problem is obtained according to the basic characteristics of the milling process. A method of using WPSO to identify the time varying heat flow is established based on inverse heat conduction problem. Besides, the distribution of cutting temperature of AISI1045 in a certain operating condition is studied by combining with the experimental data. Analysis results indicate that the interface heat flow appears three nonlinear stages, and the beginning of cutting process has a slow temperature rising plateau. The temperature at the interface between tool and workpiece rises rapidly after this plateau, and the maximum temperature is about 860 ℃. The maximum deviation between calculated and measured value is 11.06%, which shows the good agreement. It shows that the established method can be used to investigate the temperature distribution accurately in milling process.

Key words: cutting temperature of workpiece;weighted particle swarm optimization;heat conduction;AISI1045 steel

CLC Number:

TG506

FENG Yong;WANG Mulan;WANG Baosheng;HOU Junming. Research on Cutting Temperature of Workpiece in Milling Process Based on WPSO[J]. , 2014, 50(19): 205-212.

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Research on Cutting Temperature of Workpiece in Milling Process Based on WPSO

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