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MS Autotec

MS Autotec. 2008013404 Lee Gun-Min. Index. Intro – make be safe and green Secret 1 – Local heat treatment Secret 2 – Hot stamping Secret 3 – Hydrofoming Final Secret – TWB Summary. Intro - make be safety and green. How Satisfy it? hardness car is safe. Is it true ? Eco-friendly

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MS Autotec

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  1. MS Autotec 2008013404 Lee Gun-Min Index Intro – make be safe and green Secret 1 – Local heat treatment Secret 2 – Hot stamping Secret 3 – Hydrofoming Final Secret – TWB Summary

  2. Intro - make be safety and green • How Satisfy it? • hardness car is safe. Is it true ? • Eco-friendly Not all recycle and prevent pollution. We must have to reduce use material and energy • Yes, but think about when you hitted by hardness hammer. • Car’s Safety was be consider both driver and walker • In summary, car bumper needs control of impact and • car frame need toughness

  3. Local heat treatment Low tensile strength High tensile strength One material have two type strength. → unnecessary adding material → Lightweight

  4. Hot stamping Hot stamping & Quenching Stamping and Quenching At the same time. It reduce making line → need small place, low price In adition upgrade quality Heating First heating Second heating result part (High-frequency heating) 550 ~ 750 ºC 930 ºC ↑ 마텐자이트 ~ 400 ºC 750 ºC ↓ 페라이트+펄라이트 1 2 High-temperature heating 1 Help you Low-temperature heating 2 *Question : why did they help?

  5. Hydro-forming http://www.hysco.com/html/rd/ulsan/geabal_1_01.aspx

  6. TWB (Tailored Welded Blank) Individual steel sheets of different thickness, strength and coating are joined together by laser welding. Reduce weight, Structural and crash performance is improved

  7. Summary • Low wehigt car is very dengerous? • Eco-friendly?

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