107 工作機械の熱変形低減に関する研究 : 接触面の熱遮断効果に及ぼす断熱材の影響(OS3 最新工作機械)

概要

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Recent machine tools have been required both high-efficient and high-precision machining. The increase of a calorific amount due to the speed-ups of the rotational speed and the feed rate becomes one of the major cause of the machine tools' thermal deformation. The authors have proposed an efficient reduction method for the machine tools' thermal deformation. This method is aimed to collect and remove the heat, which have generated inside the machine tools, before it is spread over the adjacent components. For the basis of establishing the method to.reduce the thermal deformation, this report indicates the experimental results of the insulation effects of an insulator being sandwiched between the contact surfaces and clarifies the effects of both material and thickness of the insulator and the contact surface pressure on the thermal contact resistance. The experimental results show that the thermal contact resistance of CFRP with 1mm in the thickness was about 10 times as much as the resistance of the direct contact.
2004-11-19