3次元温度数値解析による研削エネルギー分配率の検討(第2報) : 研削温度分布に及ぼす測定法の影響とエネルギー分配率

概要

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An estimation method of energy flowing rate into a workpiece in surface grinding was discussed. The temperature and its change in a workpiece were measured by a thermocouple insertion method. On the other hand, 3D temperature distribution and its change with grinding wheel travel were numerically analyzed by considering the thermocouple and hole for temperature measurement. Through the analysis the effects of hole diameter / depth on the temperature distribution and its change were precisely discussed. The larger hole diameter causes the higher temperature at the measuring point on the hole bottom. The deeper hole, in which a measuring position is near the ground surface, also causes the higher temperature. Thus the careless measurement and analysis of temperature cause the wide scatter of temperature. The energy flowing rates which were estimated based on the analyzed temperature without considering a measuring hole were widely scattered and increased with hole diameter. The rates exceeded 100% for the large diameter hole. The estimated rate using the precise temperature analysis considering the effect of hole size / depth on temperature was little affected by the hole size, and the rate was estimated about fifiy percent irrespective of hole size.
公益社団法人精密工学会の論文
1998-04-05