Mirror surface machining for large area flattening in the display field has a problem such as a tool wear and a increase in machining time due to large area machining. It should be studied to decrease machining time and tool wear. In this paper, multi-tool machining method using a PCD tool and a SCD tool was applied in order to decrease machining time and tool wear. Machining characteristics (cutting force, machined surface and surface roughness) of PCD tool and SCD tool were evaluated in order to apply PCD tool to flattening machining. Based on basic experi- ments, the PCD/SCD multi-tool method and the SCD single-tool method were compared through surface roughness and machining time for appllying large area mold machining.

• 김창의(National Core Research Center for Hybrid Materials Solution, Pusan National University, Nano Machining Lab., KIMM (Korea Institute of Machinery & Materials)) | Chang-Eui Kim
• 최환진(Nano Machining Lab., KIMM (Korea Institute of Machinery & Materials)) | Hwan-Jin Choi
• 전은채(Nano Machining Lab., KIMM (Korea Institute of Machinery & Materials), Department of Nano-Mechatronics, UST(University of Science and Technology)) | Eun-Chae Jeon
• 제태진(Nano Machining Lab., KIMM (Korea Institute of Machinery & Materials), Department of Nano-Mechatronics, UST(University of Science and Technology)) | Tae-Jin Je Corresponding Author
• 강명창(National Core Research Center for Hybrid Materials Solution, Pusan National University) | Myung-Chang Kang Corresponding Author