Journal of the Japan Society of Precision Engineering
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Volume 26, Issue 311
Displaying 1-9 of 9 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1960 Volume 26 Issue 311 Pages 715-718
    Published: December 05, 1960
    Released on J-STAGE: February 16, 2010
    DOIhttps://doi.org/10.2493/jjspe1933.26.715
    JOURNAL FREE ACCESS
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  • Chemical Machining (2)
    Roughness of Machined Surface of Aluminum
    Toshikazu SATO
    1960 Volume 26 Issue 311 Pages 719-726
    Published: December 05, 1960
    Released on J-STAGE: June 30, 2009
    DOIhttps://doi.org/10.2493/jjspe1933.26.719
    JOURNAL FREE ACCESS
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    In general, the surface of an aluminum plate machined chemically by the use of caustic soda solution is very rough. The roughness is increased with the concentration and the temperature of working solution as well as with the working time. At lower solution temperature the roughness decreased, but the machining speed decreased too. Accordingly, from the practical point of view, some means must be found to decrease only the roughness without decreasing the machining speed.
    In a series of experiments, various factors affecting the roughness of the machined surface were examined. As a result, it was assumed that the most predominant factor of increasing roughness was the adhesion of dregs produced by impuritis in the material on the machined surface. therefore, the addition of chemicals which dissolve these impurities were found to promote the smoothness on the machined surface.
    Incidentally, it was shown that the addition of a wetting agent and a seqestering agent was also effective to smooth the machined surface.
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  • On the Characteristics of Sebacic Fosterite, a Recently Found Material for Photoelasticity
    Tei MORI
    1960 Volume 26 Issue 311 Pages 727-730
    Published: December 05, 1960
    Released on J-STAGE: February 15, 2010
    DOIhttps://doi.org/10.2493/jjspe1933.26.727
    JOURNAL FREE ACCESS
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    The writer investigated the process of production, machinability of a synthetic resin as well as its physical and optical properties at elevated temperature. Next, using test pieces of this material, he took photographs of stress patterns at critical temperature, and then those of stress frozen patterns of the test pieces subjected to torsion or centrifugal force. Finally he states the merits of this resin used as a photoelastic material after studying the data obtained in these experiments.
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  • Machining Standard of G18B High Class Heat-Resistant Steel
    Study on Establishment of Machining Standard (Part 5)
    Hidehiko TAKEYAMA, Umetaro KASUYA, Akihito YAMADA
    1960 Volume 26 Issue 311 Pages 731-738
    Published: December 05, 1960
    Released on J-STAGE: February 16, 2010
    DOIhttps://doi.org/10.2493/jjspe1933.26.731
    JOURNAL FREE ACCESS
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    This is the fifth report of the extensive project to establish the machining standards of the standardized materials, in which the process for obtaining the standard for turning the high class heat-resistant steel G18B (JESOP) is described, and the machinability characteristics of the material is thoroughly investigated based upon the tool life.
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  • Machining Standard of Alloy Steel SNCM 8
    Study on Establishment of Machining Standard (Part 6)
    Hidehiko TAKEYAMA, Umetaro KASUYA, Tsutomu YATO, Teiji YOSHIKAWA
    1960 Volume 26 Issue 311 Pages 739-746
    Published: December 05, 1960
    Released on J-STAGE: February 16, 2010
    DOIhttps://doi.org/10.2493/jjspe1933.26.739
    JOURNAL FREE ACCESS
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    This is the sixth report of the serial experiments to establish the machining standards, in which the process to find out the best machining conditions of the heat-treated alloy steel (SNCM 8) is described.
    The main items of the experiments are tests for selection of the best carbide grade and the best tool shape for the material, investigations of the effects of feed and depth of cut, and establishment of the machining standard by means of tabulation or nomograph.
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1960 Volume 26 Issue 311 Pages 747-750
    Published: December 05, 1960
    Released on J-STAGE: June 30, 2009
    DOIhttps://doi.org/10.2493/jjspe1933.26.747
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1960 Volume 26 Issue 311 Pages 751-752
    Published: December 05, 1960
    Released on J-STAGE: June 30, 2009
    DOIhttps://doi.org/10.2493/jjspe1933.26.751
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese]
    1960 Volume 26 Issue 311 Pages 753-765
    Published: December 05, 1960
    Released on J-STAGE: June 30, 2009
    DOIhttps://doi.org/10.2493/jjspe1933.26.753
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    1960 Volume 26 Issue 311 Pages 768-770
    Published: December 05, 1960
    Released on J-STAGE: June 30, 2009
    DOIhttps://doi.org/10.2493/jjspe1933.26.768
    JOURNAL FREE ACCESS
    Download PDF (594K)
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