超音波振動援用切削における被削材内部の応力分布変動の可視化

• 磯部 浩已

  長岡技術科学大学

• 山口 千尋

  長岡技術科学大学大学院

書誌事項

タイトル別名

• High-speed Capturing of Stress Distribution of Workpiece Under Ultrasonically Assisted Cutting Condition

抄録

The aim of this study is to investigate the cutting phenomenon under Ultrasonically Assisted Cutting (UAC) condition. The vibrating cutting edge is considered to be cause of dynamic change of cutting force at ultrasonic frequency. However many researchers have explained the effect of UAC by evaluating the time-averaged cutting force, because it is difficult to measure the dynamic cutting force by using dynamometers. In this study, the instantaneous stress distribution on workpiece was visualized by photoelastic method in combination of pulse light emission synchronized with vibration of cutting edge. Applying a uniaxial compression test, the fringe map relative to phase-difference defined by Brewster's law was calibrated with stress distribution. Orthogonal cutting test was carried out at low cutting speed relative to vibration speed of insert. The cutting force calculated from stress distribution was considerably agreed with measured force by dynamometer. It was experimentally confirmed that the stress distribution under UAC condition showed the periodical change synchronized with insert vibration. The instantaneous maximum cutting force under UAC condition was smaller than that of conventional cutting condition. The geometrical analysis of cutting force explained the greater shear angle by decrease of friction angle under UVC condition.

収録刊行物

• 精密工学会誌

  精密工学会誌 81 (5), 441-445, 2015

  公益社団法人 精密工学会

キーワード

• ultrasonic vibration cutting
• photoelastic method
• stress distribution
• orthogonal cutting
• strobe scopic

詳細情報

• CRID: 1390282679804824192
• NII論文ID: 130005066833
• DOI: 10.2493/jjspe.81.441
• ISSN: 1882675X
• ISSN: 09120289
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可