Simulation method on three-dimensional shape generation process by femtosecond laser ablation

Hiroyuki Kawakami, Shunsuke Nabetani, Masahiro Ueda, Yoshinori Ogawa, Kazuo Yamazaki, Hideki Aoyama

Research output: Contribution to journalConference articlepeer-review

3 Citations (Scopus)


Ablation processing using a femtosecond laser has the advantage of processing materials that are impossible to machine by conventional methods. However, it is difficult to predict the three-dimensional removal shape owing to a femtosecond laser irradiation and the current processing method, repeating through trial and error, is inefficient and expensive. For this reason, for processing materials to desired shapes using a femtosecond laser, development of a simulation system and a CAM (Computer-Aided Manufacturing) system are indispensable. In this paper, a simulation method for processing materials using a femtosecond laser is proposed and conducted to nano-polycrystalline diamond (NPD). It is confirmed that the proposed method can precisely simulate the femtosecond laser processing for three-dimensional shape generation. Therefore, the proposed method enables to predict the removal shape identified as the virtual tool shape for calculating a tool path on a CAM system. In addition, an automation process method including an on-machine real-time measurement system of the proposed method is described.

Original languageEnglish
Pages (from-to)921-926
Number of pages6
JournalProcedia CIRP
Publication statusPublished - 2020
Event20th CIRP Conference on Electro Physical and Chemical Machining, ISEM 2020 - Zurich, Online, Switzerland
Duration: 2021 Jan 192021 Jan 21


  • CAM system
  • Diamond tool
  • Femtosecond Laser
  • Laser beam processing
  • Simulation

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering


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