Effect of expansion coefficient difference between machine tool and workpiece to the thermal deformation induced by room temperature change

9th CIRP Conference on High Performance Cutting (HPC 2020)In the precision machining process, ambient temperature is maintained to 20 °C to minimize the thermal deformations. Much energy is consumed to maintain ambient temperature. The use of thermal compensation systems can minimize the energy consumption of room cooling systems. However, the influence of thermal deformation induced by room temperature upon workpieces is not clear. This paper investigates the effect of the linear expansion coefficient difference between a machine tool and workpieces to the thermal deformation induced by room temperature change. Machining experiments are conducted for steel and aluminum workpieces. The results agree with the calculation

カバリング工程におけるカバード糸の被覆状態と糸張力に関する研究

取得学位：博士(工学)，学位授与番号：博甲第645号，学位授与年月日：平成16年3月25日,学位授与年：200

Th2およびTh17型免疫応答による消化管運動機能異常に関する研究

学位の種別:課程博士University of Tokyo(東京大学