Journal of The Japan Society of Electrical Machining Engineers
Online ISSN : 1881-0888
Print ISSN : 0387-754X
ISSN-L : 0387-754X
Volume 33, Issue 74
Displaying 1-5 of 5 articles from this issue
  • [in Japanese]
    1999 Volume 33 Issue 74 Pages 1-8
    Published: November 30, 1999
    Released on J-STAGE: March 12, 2010
    JOURNAL FREE ACCESS
    Download PDF (10951K)
  • Hidekazu TSUKAHARA, Hisashi MINAMI, Kiyonori MASUI, Kei DEMIZU, Takumi ...
    1999 Volume 33 Issue 74 Pages 9-15
    Published: November 30, 1999
    Released on J-STAGE: March 12, 2010
    JOURNAL FREE ACCESS
    Surface modification of titanium using EDM process was studied. To form a new titanium carbide (TiC) layer on the machined surface, finishing EDM process was examined. TiC layer with crack less surface was obtained in the relatively short discharge duration with low discharge current range under the electrode negative polarity.
    And the various effective improvements in machined surface such as hardness, tribological properties and corrosion resistance were obtained respectively.
    Download PDF (6950K)
  • Improvement of Accuracy of Rough Cut Concave Small Corner R by Over cut-Dwell Method
    Haruki OBARA, Tamotsu KAWAI, Tsuyoshi OHSUMI
    1999 Volume 33 Issue 74 Pages 16-23
    Published: November 30, 1999
    Released on J-STAGE: March 12, 2010
    JOURNAL FREE ACCESS
    The previous 2nd and 3rd reports described methods by which to improve the accuracy of the convex corner, corner R and large concave corner R on the rough cut of a workpiece, where the wire discharges symmetrically on front surface of the wire. The present paper describes methods by which to improve the accuracy of the concave corner having small radius corner R on the rough cut, where the wire discharges asymmetrically on the wire surface. A new method that combines the dwell operation method with the over cut method is proposed. The procedure and expressions used to calculate these control values based on a wire deflection model are described. In addition, the advantage of high wire tension is discussed. The proposed method was found to be useful for improving the concave corner accuracy and saving machining time.
    Download PDF (863K)
  • M. Nagata, K. Wakabayashi, M. Yamada, T. Masuzawa
    1999 Volume 33 Issue 74 Pages 24-31
    Published: November 30, 1999
    Released on J-STAGE: March 12, 2010
    JOURNAL FREE ACCESS
    In this paper, we propose a microcutting method with a reduced machining force by applying an electrolytic passive film formation on the workpiece surface. This process realizes the machining of microstructure such as 10μm wide micro grooves which has been difficult to be machined by conventional cutting. A mirror surface which has the roughness 30nm Ry is also obtained by this method.
    Download PDF (10910K)
  • Yuji KANEKO, Hisanori YAMADA, Tatsuo TOYONAGA, Kazuo SHODA
    1999 Volume 33 Issue 74 Pages 32-41
    Published: November 30, 1999
    Released on J-STAGE: March 12, 2010
    JOURNAL FREE ACCESS
    Download PDF (11277K)
feedback
Top