[B-1-14] Improvement of Finished Surface Roughness Based on Knowledge from Visualization of Built-up Edge Behavior 〇Yusaku Ando1,2、Yuki Sumiya2、Tomonori Ishihara2、Yasuhiro Oba2、Fumihiro Itoigawa1 (1.Nagoya Institute of Technology、2.DENSO CORPORATION) キーワード:Machining、Built-up edge、Finished surface roughness、Visualization system、High-speed camera