| 제목 |
340MPa 급 초고성형성 고강도강판 개발에 관한 연구 |
| 분야 |
재료 및 RECYCLE |
| 언어 |
Korean |
| 저자 |
김용희(전북대학교), 이영수(현대하이스코(주)), 이오연(전북대학교) |
| Key Words |
Super formable HSS(초고성형성 고강도강), Formability(성형성), Mechanical property(기계적성질),Texture(집합조직), Heat treatment(열처리) |
| 초록 |
The demand for formable high-strength steel (HSS) sheets has recently increased to reduce the weight of automotive bodies. The 340MPa (Tensile Strength) grade steel sheets are widely used for body inner and outer panels. Especially, super formable 340MPa grade steel sheets with high r-value have an excellent deep drawability compared with the other 340MPa grade steel sheets. It is very available for a part such as rear floor, center floor and dash panels used conventional mild steels up to now. We developed a super formable HSS by optimization of chemical composition, texture control and heat treatment control. It has good mechanical properties with excellent formability (tensile strength: 343MPa, elongation: 41.1% and r =2.1). |
| 원문(PDF) |
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