Journal of the Japan Society of Precision Engineering
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Volume 25, Issue 289
Displaying 1-7 of 7 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1959 Volume 25 Issue 289 Pages 45-49
    Published: February 05, 1959
    Released on J-STAGE: June 30, 2009
    DOIhttps://doi.org/10.2493/jjspe1933.25.45
    JOURNAL FREE ACCESS
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  • Study on the Mechanisms of Metal Cutting (Part 1)
    On the Tool-Chip Contact Length
    Kenji SATO, Syotaro OZAKI
    1959 Volume 25 Issue 289 Pages 50-56
    Published: February 05, 1959
    Released on J-STAGE: February 16, 2010
    DOIhttps://doi.org/10.2493/jjspe1933.25.50
    JOURNAL FREE ACCESS
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    In this paper we clarified the mechanism of metal cutting based on the tool-chip contact length.
    On the assumption that the work in a chip is in the range of plastic deformation, we introduced the "Limiting Angle θf", thinking of a slip line in the chip built up by the frictional stress along the tool-chip interface, cos 2θf=sf/ss
    where sf is shear stress on the tool-chip interface, and ss is shear stress on the shear plane.
    From experimental data on metal cutting, this angle was found to be equal to the angle determined geometrically from feed, rake angle, shear angle and tool-chip contact length.
    This limiting angle, was found to be approximately a constant with a given material, independent of the cutting conditions. And a new cutting equation was obtained from the limiting angle.
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  • The Analysis of Surface Roughness Curves (1st Report)
    Introduction
    Tsuneo Nakamura
    1959 Volume 25 Issue 289 Pages 56-62
    Published: February 05, 1959
    Released on J-STAGE: June 30, 2009
    DOIhttps://doi.org/10.2493/jjspe1933.25.56
    JOURNAL FREE ACCESS
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    The object of a series of the reports under this title is to draw attentions to the periodicity of surface roughness curves, and this first report gives an outline of the foundation.
    In the begining of this paper the analysis of surface roughness curves and its applications, that is, the properties of worked surfaces and the abilities of surface roughness meters and those of reflected surfaces are described. Then the correlation functions needed for the analysis of surface roughness curves are explained.
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  • [title in Japanese]
    Wear of Carbide Tools in Machining 18-8 Stainless Steel
    Hidehiko TAKEYAMA
    1959 Volume 25 Issue 289 Pages 62-69
    Published: February 05, 1959
    Released on J-STAGE: June 30, 2009
    DOIhttps://doi.org/10.2493/jjspe1933.25.62
    JOURNAL FREE ACCESS
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    For the right selection of machining conditions and carbide grades, close investigations of the tool wear and the wear process are essential. The object of this paper is to offer some informations about the tool wear in machining 18-8 stainless steel. Various types of tool wear are presented anddiscussed on the basis of wear process. Particularly, the rate of cratering is studied experimentally, introducing the coefficient of the rate of cratering so that reliable evaluations of carbide tools can be achieved as far as cratering is concerned.
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  • [title in Japanese]
    [in Japanese]
    1959 Volume 25 Issue 289 Pages 69-78
    Published: February 05, 1959
    Released on J-STAGE: June 30, 2009
    DOIhttps://doi.org/10.2493/jjspe1933.25.69
    JOURNAL FREE ACCESS
    Download PDF (2139K)
  • [title in Japanese]
    [in Japanese]
    1959 Volume 25 Issue 289 Pages 79-83
    Published: February 05, 1959
    Released on J-STAGE: June 30, 2009
    DOIhttps://doi.org/10.2493/jjspe1933.25.79
    JOURNAL FREE ACCESS
    Download PDF (783K)
  • [title in Japanese]
    1959 Volume 25 Issue 289 Pages 85-87
    Published: February 05, 1959
    Released on J-STAGE: June 30, 2009
    DOIhttps://doi.org/10.2493/jjspe1933.25.85
    JOURNAL FREE ACCESS
    Download PDF (639K)
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