Study on mirror surface grinding of die steels by using ultrasonically assisted diamond tool(Grinding technology)

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  • HARA Keisuke
    Department of Mechanical Engineering, Graduate School of Engineering, Nagaoka University of Technology
  • KYUSOJIN Akira
    Department of Mechanical Engineering, Faculty of Engineering, Nagaoka University of Technology
  • ISOBE Hiromi
    Department of Mechanical Engineering, Faculty of Engineering, Nagaoka University of Technology
  • YANAGI Kazuhisa
    Department of Mechanical Engineering, Faculty of Engineering, Nagaoka University of Technology
  • YOSHIHARA Hideo
    Niigata Industrial Creation Organization

Description

This paper describes ultrasonically assisted grinding for injection die steel using diamond abrasive tools. In this study, a 3D positioning machine equipped with an ultrasonic spindle carried out grinding experiments. Generally, diamond tools cannot grind steel because of the terrible wear due to chemical reaction between diamond and steel. However, ultrasonically assisted grinding can make fine surface (roughness Rz is 0.4〜0.84μm) of die steel, without severe tool wear. Effects of tool feed rate, radial depth of cut and axial depth of cut were investigated.

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