http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
자동차 브레이크 부품용 S45C 소재의 레이저 용접특성 평가
심기중(Kijoong Sim),조원용(Wonyoung Cho),김용관(Youngkwan Kim),최규재(Kyujae Choi) 한국자동차공학회 2014 한국 자동차공학회논문집 Vol.22 No.1
This paper represents the s-cam manufacturing process with the high-carbon steel like S45C using laser welding system. Laser welding of the high-carbon steel is generally difficult because of hardening of the weld zone. Also, existing s-cam manufacturing process, electric resistance welding system, have some problems like increase of production and development cost. To solve those problems, we are introduced the laser welding system with the pre-heating system for precision welding of s-cam with separated shaft and cam part. S-cam manufactured with optimum laser welding conditions is verified the performance like tensile strength, torsional strength and fatigue test. Strength and fatigue test results are described.
심기중(Kijoong Sim),신행우(Hangwoo Shin),조원용(Wonyoung Cho),최규재(Gyoojae Choi),이영춘(Youngchoon Lee),손영호(Youngho Son),전남진(Namjin Jeon) 한국자동차공학회 2015 한국 자동차공학회논문집 Vol.23 No.4
This paper represents the structural design of the light weight axle beam for medium duty commercial vehicle using hot press. To reduce the weight of the axle, axle beam of solid type was replaced by hollow type which was made by hot press. According to the change of axle beam structure and manufacturing method, we have to investigate the structural strength and fatigue performance. To verify the axle beam performance, the structural analysis was carried out by simplified axle beam model and various design parameters that are axle beam height, thickness and width. From the analysis results, the light weight axle beam structure was founded and applied the full model analysis. This study will be used as a guidance in development of the light weight axle for medium duty commercial vehicle.