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Volume 24, Issue 285
Displaying 1-6 of 6 articles from this issue
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Teizo MAEDA1958 Volume 24 Issue 285 Pages 575-585
Published: November 05, 1958
Released on J-STAGE: February 16, 2010
JOURNAL FREE ACCESS -
Operation Standard for Turning 18-8 Stainless SteelHidehiko TAKEYAMA1958 Volume 24 Issue 285 Pages 586-595
Published: November 05, 1958
Released on J-STAGE: June 30, 2009
JOURNAL FREE ACCESSIn the laboratory to which the author is belonging, the experiments to establish the machining standards for a number of important materials standardized by the Government (JIS) has been just started as the big project. This report is for establishing the machining standard of 18-8 stainless steel. Here, the most suitable carbide grade and the best rake angle for turning the stainless steel have been selected from the viewpoint of two aspects of the tool life, flank wear and crater, and under the best combination of the above two, the feed effect has been studied. As a result, the machining standard of speeds, feeds and tool life equations for various combinations of tool-life criterions have been summarized in a table.View full abstractDownload PDF (1575K) -
Yasuo MORI, Yasuhiko NIIMI1958 Volume 24 Issue 285 Pages 596-601
Published: November 05, 1958
Released on J-STAGE: June 30, 2009
JOURNAL FREE ACCESSIn the 1st report, hydrodynamic analysis on the flow around a float and an inner wall of tapered tube was developed by assuming that the taper was small, and relations which can be applied to gas and liquid, were introduced. In the 2nd report, the relations obtained theoretically in the 1st report, were verified through experiments.
The purpose of the 3rd report is to introduce general relations about performance of floatarea-type flow meters which are applied when the taper of a tube is not small. The method to calculate the relation between a position of float and a flow rate for a given tapered tube and a float, is suggested and the effect of viscosity of a working fluid on the performance of this flow meter is investigated.View full abstractDownload PDF (889K) -
Yasuo MORI, Yasuhiko NIIMI1958 Volume 24 Issue 285 Pages 602-606
Published: November 05, 1958
Released on J-STAGE: June 30, 2009
JOURNAL FREE ACCESSThe purpose of this report is to verify experimentally the relations introduced by the analysis in the 3rd report. In the experiments, various kinds and forms of floats and tubes of large or small taper, were tested by water and air. Those experiments prove the results obtained in the 3rd report, and the relation between a position of float and a flow rate is shown to agree with that reduced by the analysis. The effect of the inclination of the tapered tube from the vertical line on the performance was tested, and for an accurate measurement the inclination is explained to have to be kept within 1 degree. The precision of this flow meter was investigated and shown about 0.7%.
From the analysis in the 3rd report and experiments in this report, we get a conclusion that the performance of float-area-type flow meter and the effect of viscosity and density of working fluid can be calculated, and data for designing them can be obtained from the relations introduced in the 3rd report.View full abstractDownload PDF (984K) -
[in Japanese]1958 Volume 24 Issue 285 Pages 607-656
Published: November 05, 1958
Released on J-STAGE: June 30, 2009
JOURNAL FREE ACCESS -
1958 Volume 24 Issue 285 Pages 657-659
Published: November 05, 1958
Released on J-STAGE: June 30, 2009
JOURNAL FREE ACCESSDownload PDF (724K)
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