한국자동차공학회논문집 (Transactions of the Korean Society of Automotive Engineers)

  • 제10권5호
  • /
  • Pages.228-234
  • /
  • 2002
  • /
  • 1225-6382(pISSN)
  • /
  • 2234-0149(eISSN)
한국자동차공학회 (The Korean Society of Automotive Engineers)
권호 표지

자동차 범퍼빔 경량화를 위한 레이저 빔 조사 강화(I)

Laser Beam Irradiation Strengthening for Weight Reduction of Automobile Bumper Beam (I)

  • 발행 : 2002.09.01
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초록

The CO$_2$ laser beam irradiation strengthening of 35kgf/mm$_2$ grade steel sheet is investigated to reduce the weight of bumper beam. The increase of tensile strength is dominated by the number of fully penetrated melting lines. The optimal laser irradiation pattern is obtained by 3-point bending test of hat-type specimens. Laser should be irradiated not only on the center specimen densely in the width direction, but also on the edge densely in the longitudinal direction. Local laser strengthening may be effective for the weight reduction of automobile bumper beam.

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참고문헌

  1. 자동차경제 자동차 경량화의 현황과 전망 곽규섭
  2. SAE 940159 Extruded Aluminum Bumper System P.A.Allen;D.W.McCullough;S.A.Tan
  3. NKK 技報 no.151 Application of Ultra-high Strength Steel Sheets to Bumper Beams T.Mori;H.Hamano;K.Suzuki;A.Yoshitake;Y.Hashimoto;K.Iwase
  4. SAE 940757 Structural Performance and Weigh Reduction of Steel, Aluminum and Stampable Sheet for Bumper Beams T.Mori;H.Hamano;K.Suzuki
  5. SAE 880459 Material Sub-stitution Yrends in Global Automobile Bumper System R.Eller;M.A.Kirsch
  6. 한국자동차공학회 1997년도 추계학술대회 논문집 차량용 범퍼의 설계 및 구조해석 김명훈;김상하;하성규
  7. 대한용접학회지 v.14 no.1 이종두께 강판의 CO 레이저 용접 및 성형성 서정;한유희;김정오;이영신
  8. 대한용접학회지 v.12 no.2 자동차 산업에서의 레이저 용접 서정;한유희
  9. 한국자동차공학회논문집 v.7 no.2 자동차 범퍼빔 경량화를 위한 레이저 용접 블랭크의 적용 서정;한유희;김정오;이문용;이광현;김태일
  10. 한국레이저가공학회지 v.4 no.2 자동차용 강판의 CO레이저 빔 조사강화 서정;이제훈;김정오;오상진;조원석;이두환;신철수
  11. 대한용접학회지 v.20 no.1 자동차용 35㎏f/㎟ 급 강판의 CO레이저 강화 서정;이제훈;김정오;오상진;조원석;이두환;신철수;이문용;이규현
  12. Journal of Korean Society of Laser Processing(KSLP) v.1 no.1 A Study of Tailored Blank Welding between Mild Steel and Zn-coated Steel Sheets by CO₂Laser Beam Jong-Hyun Suh;To-Hoon Kim;Byung-Kil Yu;Kyoung-Don Lee
  13. Journal of Korean Society of Laser Processing(KSLP) v.2 no.3 A Study of Tailored Blank Welding between dissimilar materials and different thickness sheets by CO₂Laser Beam Chang-Sun Hwang;To-Hoon Kim;Byung-Kil Yu;Kyoung-Don Lee
  14. Journal of Korean Society of Laser Processing(KSLP) v.1 no.1 Effects of Shielding Gas Type on CO₂Laser Welding B.G.Chung;S.Y.Yoo;I.S.Park;C.H.Lee