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1993 Fiscal Year Final Research Report Summary

PVD Film Method for Measuring Grinding Temperature

Research Project

Project/Area Number 04650108
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 機械工作
Research InstitutionGifu University

Principal Investigator

KATO Takao  Gifu University, Faculty of Engineering Asistant Professor, 工学部, 助教授 (20023319)

Project Period (FY) 1992 – 1993
KeywordsGrinding temperature / PVD / Thin film / Melting point / Vapor deposition
Research Abstract

The near-surface temperature distribution in the workpiece in surface grinding was measured by applying the PVD film method developed recently. In this technique, the workpiece is parted into the two parts same in size in the direction parallel to the grinding direction. Then the inner surfaces of the both parts are ground and lapped to mirror surface. The two parts are fastened together and ground after the material with a definite melting point is vapor-deposited on the inner surfaces. When the interface is observed by a microscope after the grinding test, the boundary between the melted film zone caused by grinding heat and the unmelted film zone on the interface is positively identified. The temperature of the workpiece on the boundary can be expected to agree with the melting point of the deposited film material. If the same experiment is repeated by using various PVD films of different melting points, the temperature distribution of the near-surface of the workpiece in the depthwise direction can be estimated accurately.
The influence of the grinding condition, the work material and the grinding wheel material on the temperature distribution was investigated under a conventional surface grinding. The conclusions obtained are as follows.
(1)It was shown experimentally that the temperature gradient at the near-surface is in good agreement with Takazawa's approximation based on Jaeger's moving heat source theory. It depends on only the thermal diffusivity of the work' the wotk speed and the wheel-work contact length.
(2)Energy partition coefficient, calculated with the extrapolated maximum temperature rise at the surface, changed from 0.5 to 0.9, depending on the grinding conditions, the work material and the wheel material.
(3)The temperature measuring technique outlined in this paper seems to be a promising method in the field of grinding research.

  • Research Products

    (4 results)

All Other

All Publications (4 results)

  • [Publications] T.Kato,H.Fujii: "Temperature Distribution of Workpiece in Surface Grinding Measured by PVD Film Method" Trans.ASME,Journal of Engineering for Industry. 投稿中.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 加藤隆雄,鵜飼直行: "内部温度測定用部材およびそれを用いた内部温度測定法" 特許 No.平5-168644.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] T.Kato, H.Fujii: "Temperature Distribution of Workpiece in Surface Grinding Measured by PVD Film Method" Trans.ASME, Journal of Engineering for Industry. submitted.

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] N.Ukai, T.Kato: "A Method for Measuring the Temperature Distribution in Solid Body" J.PAT.(5-168644).

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1995-03-27  

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