JOURNAL OF THE JAPAN SOCIETY FOR TECHNOLOGY OF PLASTICITY vol.48 no.560 September 2007 ---CONTENTS--- Essay Trend and Prospect of Forgemasters in Japan Shin-ichi ONO 1(785) Explanations Role of Superplastic Deformation in Industry Masafumi NODA and Hisashi MORI 3(787) Recent Trend and Problems of Friction Stir Welding Masatoshi ENOMOTO 9(793) Optimum Design Technology f or Polymer Processing Atsushi YOKOYAMA 13(797) Thought on Plastic Forming of Gears Ichiro MORIWAKI 19(803) Lectures Semisolid Casting of Some Aluminum Alloys Using Inclined Cooling Plate and Their Thixoforming Tetsuichi MOTEGI 23(807) Visit to Institutions Trying for Low Pressure Precision Cold Die Forging on Gear Toothed Products -Numazu National College of Technology, Mechanical Training Shop and Laboratory for Technology of Plasticity- Kyoichi OHGA 28(812) Research Group of Production System Engineering, Kagoshima University Kenji NAKANISHI and Shunpei KAMITANI 30(814) Report Joint International Conference on Tube Hydroforming -TUBEHYDRO 2007-organized by CSTP, KSTP and Tube Forming Committee (JSTP) Tube Forming Committee, Takashi KUBOKI and Yoshinori YOSHIDA 32(816) Paper Effect of Forming Conditions on Thickness Distribution in Local Heating Pipe-Bending Katsutoshi MIYASAKA and Tohru SATOH 35(819) Compressive Bonding of High-Carbon Cast Iron Powder Fabricated by Mechanical Alloying to Cast Iron -Surface Improvement of Cast Iron Die Material for Glass Forming (2) - Masahiko SAEGUSA, Keishi SUGIURA and Eiji YUASA 40(824) Effect of Cutting Line End of Paperboard on Pushing-Load Characteristic of Center Bevel Blade Shigeru NAGASAWA, Tomoharu TAGA, Yasushi FUKUZAWA, Mitsuhiro MURAYAMA and Isamu KATAYAMA 49(635) Copyright (C)1997-2007 JSTP. All Rights Reserved.