JOURNAL OF THE JAPAN SOCIETY FOR TECHNOLOGY OF PLASTICITY vol.45 no.522 July 2004 ---CONTENTS--- Essay Research and Development in the Smoll and Medium Industries and the Roll of Academic Societies Yasuomi WATANABE 1(501) Explanations Optical Switches for Telecommunication Systems Masaya HORINO 2(502) Microstructural Control of Metallic Sheet by Means of Continuous Cyclic Bending and its Properties Yoshimasa TAKAYAMA 7(507) Lectures Rotary Forming Technology for Weight Saving of Automobile Parts Masaki SAITO 13(513) Basic Theory of Tube Hydroforming Ken-ichi MANABE 19(519) Papers Alumina Dispersion Strengthening of Magnesium by Mechanical Alloying Method Shigehiro KAWAMORI and Terufumi MACHIDA 25(525) Development of New Rotary Forming Method and RollingExperiments -Spline Rolling of Clutch Hubs Using Screw-Shaped Tool 1- Ryoichi MATSUNAGA,Teruie TAKEMASU and Tatsuo OZAKI 30(530) Application of Resistance Heating Technique to Mushy State Forging of Aluminum Alloy Seijisro MAKI,Takeshi SHIBATA,Yasunori HARADA,Ken-ichiro MORI and Hiroyasu MAKINO 35(535) Edge Damage Measurement of Hair Cutting Scissor Blades Kenji INOUE,Mitsugu MOTOMURA and Takashi IMURA 40(540) Fabrication of Cemented Carbide Molds with Internal Cooling Channels for Forming of Precision Products Using Powder Layer Compaction Yoshiaki MIZUKAMI and Kozo OSAKADA 45(545) Copyright (C)1997- 2004 JSTP. All Rights Reserved.