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

Suh, Jeong (한국기계연구원)
Lee, Jae-Hoon (한국기계연구원)
Oh, Sang-Jin (한국기계연구원)
Lee, Moon-Yong ((주)성우하이텍 기술연구소)
Lee, Gyu-Hyun ((주)성우하이텍 기술연구소)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.10, no.5, 2002 , pp. 228-234 More about this Journal
Abstract
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.
Keywords
$CO_2$ laser beam irradiation; Strengthening; Weight reduction; Bumper beam;
Citations & Related Records
Times Cited By KSCI : 7  (Citation Analysis)
연도 인용수 순위
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2 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 ] / Journal of Korean Society of Laser Processing(KSLP)   과학기술학회마을
3 자동차용 35㎏f/㎟ 급 강판의 CO레이저 강화 /
[ 서정;이제훈;김정오;오상진;조원석;이두환;신철수;이문용;이규현 ] / 대한용접학회지   과학기술학회마을
4 Material Sub-stitution Yrends in Global Automobile Bumper System /
[ R.Eller;M.A.Kirsch ] / SAE 880459
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[ 서정;이제훈;김정오;오상진;조원석;이두환;신철수 ] / 한국레이저가공학회지   과학기술학회마을
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[ 곽규섭 ] / 자동차경제
7 Effects of Shielding Gas Type on CO₂Laser Welding /
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[ T.Mori;H.Hamano;K.Suzuki ] / SAE 940757
10 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 ] / Journal of Korean Society of Laser Processing(KSLP)   과학기술학회마을
11 Application of Ultra-high Strength Steel Sheets to Bumper Beams /
[ T.Mori;H.Hamano;K.Suzuki;A.Yoshitake;Y.Hashimoto;K.Iwase ] / NKK 技報
12 이종두께 강판의 CO 레이저 용접 및 성형성 /
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14 Extruded Aluminum Bumper System /
[ P.A.Allen;D.W.McCullough;S.A.Tan ] / SAE 940159