1987 Fiscal Year Final Research Report Summary
An Analysis of Thermal Deformation of Machine Tools by Varyin The Inner Heat Sources Periodically, and Its Control Using Thermoerectric Elements
| Project/Area Number |
61460091
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| Research Category |
Grant-in-Aid for General Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
機械工作
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| Research Institution | Tokyo University of Agriculture and Technology |
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Principal Investigator |
NISIWAKI Nobuhiko Tokyo University of Agriculture and Technology, Professor, 工学部, 教授 (90016626)
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| Co-Investigator(Kenkyū-buntansha) |
MOCHIZUKI Sadanari Tokyo University of Agriculture and Technology, Professor, 工学部, 教授 (10013715)
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| Project Period (FY) |
1986 – 1987
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| Keywords | Machine Tool / Thermal Deformation / Thermoelectric Element / Heat Transfer / Heat Source / 熱源探査 |
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| Research Abstract |
The thermal deformation and distortion of a machine tool is caused not only by inner heat sources such as bearings, motors and so on but also by outer heat sources, that is the temperature variation in a machine shop and thermal radiation from the walls of the shop and the other machine.
In this study, the behabiours of the thermal deformation of a machining center columun are experimentaly and numerically investigated by using simple column structure models of machining centers. The methods of preventing the thermal deformation by using thermoerectric elements are studied.
From the results the following conclusions are obtained: (1) The influence of thermal radiation on the thermal deformation can not be ignored. (2) The position and the heating varue of the inner heat sources can be approximately obtained by varying the heating value of them periodically. (3) The temperature control of machining center columns by using thermoerectric elements is very effective for decreasing thermal deformation.
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