Development of Innovative Steel Grades and Their Applications in Automotive Structures
- 2018-11-29 13:06:00
- LUQIMENG Original
- 2619
Innovative AHSS Products from AK Steel
Coated Bake Hard 440 provides light weighting opportunities for surface- - critical applications
Next Generation AHSS 1000 and 1200 with improved elongations over Dual Phase steels with equivalent strength
NITRONIC ? ? 30 existing stainless steel grade with optimized cost, good formability, high strength, corrosion resistant and premium surface finish
NanoSteel NXG? 1200 3 rd generation AHSS, for high strength and great formability in multiple applications
Light Weighting Case Studies
Review 5 case studies:
? CS1: BH440 Exposed Door Study
? CS2: Full Size Truck on Frame Front Structure
? CS3: B-Size Sedan Door Ring Study
? CS4: B-Sized Sedan PHS vs Cold Stamping
? CS5: C Size Sedan Small Offset Rigid Barrier (SORB) Considerations:
? Only major load cases are evaluated
? All parts are reviewed for stamping feasibility
? Other load cases will affect results
? More savings can be achieved if materials are considered early in the design process
Results:
? Reduce mass of the selected parts by 29.2 kgs
? Stamping feasibility complete
? Meets front crash requirements
? Plan for reducing torsional rigidity effects
Product Highlights
Applications of Next Generation, BH440 and NanoSteel
? Energy absorbing parts
? Parts needing improved formability and high strength
? Part consolidation
? Extremely high strength parts
? Mass reduction? Exposed panel mass reduction
Ongoing customer projects to:
? Fully implement with other load case considerations
? Durability
? NVH
? Crash
? Local loading requirements
