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Basic research on laser welding process and system technology for core electric vehicle parts
유현종,강희신,박창규,최필공,김도현,김명진 대한용접·접합학회 2021 대한용접학회 특별강연 및 학술발표대회 개요집 Vol.2021 No.11
The purpose of this study is to make the experimental basis for the development of the laser welding process and system technology. The basic experiments are carried out on the melting of the thin copper and copper sheets in order to secure the micro laser welding process technology for manufacturing the battery of electric vehicle. The micro laser welding joints are lap joints. The welding specimens are made from the nickle coated copper and copper plates. The thickness of nickle coated plate is 0.3mm and the thickness of the copper plate is 0.3mm and 2mm. The quality of welding specimens is tested by observing the shape of the beads on the plate after the laser welding and the crosssection of the welded parts is observed by using metallography method. The mechanical tensile test is carried out for analyzing the performance of welding strength. The laser beam from the laser generator is transmitted via an optical fiber to the welding head at the end of the industrial robot"s arm. The laser welding can be achieved by manipulating the robot system. The laser generator uses 1.6 kW fiber laser system and the robot system is the 6 axes Industrial robot of payload 130 kg.
이준성,유현신,서형식,노석선,Lee, Jun-Seong,Rheu, Hyun-Sin,Seo, Hyung-Sik,Rho, Seok-Seon 대한한방안이비인후피부과학회 2001 한방안이비인후피부과학회지 Vol.14 No.2
The result were as follows: 1. Apply the drug to the Dental and Paradental digease is used to be very busy on the Gypsum Fibrosum( 石膏) and Asari herba cum Radice(細辛). 2. Apply the drug to the Dental and Paradental digease is clearing away heat and helping sweat 3. Apply the drug to the Dental and Paradental digease is cold and hot. 4. Apply the drug to the Dental and Paradental digease is pungent, bitter and sweet. 5. Apply the drug to the Dental and Paradental digease is non-toxic. 6. Apply the drug to the Dental and Paradental digease is used to be very busy on the chanel of liver and stomach.