Design for Laser Welding - American Iron & Steel Institute

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Seam and joint types Lap weld on lap joint Seam weld on butt joint w w w . a u t o s t e e l . o r g
Name Seam and joint types Seam weld on butt joint Lap weld on lap joint Example Characteristics w w w . a u t o s t e e l . o r g Think about a positive & negative characteristic of both the butt & lap weld configurations. + Weld Fusion Area • less material = weight & cost savings • faster or less power • less HAZ / distortion • no issues w/ Zn • no step - Positioning Tolerance • edge requirements • fit up can be more difficult to obtain + Positioning Tolerance • larger process window • can have aesthetic underside - Weld Fusion Area • more energy required = slower or higher power & more distortion / HAZ • inefficient process
Page 1 and 2: DESIGN FOR LASER WELDING David Havr
Page 3 and 4: Laser applications - Automotive Ind
Page 5 and 6: Why employ laser welding? � Minim
Page 7 and 8: Access Quality Cost Visibility Driv
Page 9 and 10: Laser as a tool • relatively wide
Page 11: Material selection 2. Brittleness &
Page 15 and 16: Name Seam and joint types Lap weld
Page 17 and 18: The importance of good fit-up • F
Page 19 and 20: Tolerance compensation Toler. compe
Page 21 and 22: Design features w w w . a u t o s t
Page 23 and 24: Design features Weld Seam on a K-Jo
Page 25 and 26: Design features K- Joint in Applica
Page 27 and 28: Design features Specialized cutting
Page 29 and 30: Design features More Tube Interface
Page 31 and 32: Design features Interlocking tabs f
Page 33 and 34: Tunnel Design features Concept for
Page 35 and 36: Design for laser welding summary (p
Page 37 and 38: Continuous Education / Improvement
Page 39 and 40: Thank you w w w . a u t o s t e e l
Page 41 and 42: Principle of time sharing � Throu
Page 43 and 44: Continuous weld & strength optimiza
Page 45 and 46: Elimination of lower electrode w w
Page 47 and 48: Wide vs. narrow Wide Overlap weldin
Page 49 and 50: F Advantage: Programmable Weld Shap
Page 51 and 52: Zn coated material: Gap for out gas
Page 53 and 54: Gap for out gassing: Laser dimpling

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