Browse Publications Technical Papers 2013-01-1167
2013-04-08

The Influence of Edge Preparation Method on the Hole Expansion Performance of Automotive Sheet Steels 2013-01-1167

Edge stretching performance was assessed with the conical-punch hole expansion test for a variety of automotive sheet steels. Included were: an ultra-low carbon IF steel, a dual-phase advanced high strength steel (DP 980), an austenitic stainless steel (204), an annealed martensitic stainless steel (410 AN), and a ferritic stainless steel (429 MOD). Various hole fabrication methods were considered: conventional piercing (shearing), water-jet cutting and laser cutting. With pierced holes, no effect of shearing clearance on the hole expansion ratio (HER) was observed. The dual-phase steel and the austenitic stainless steel exhibited relatively low hole expansion performance in the pierced-hole condition (HER ≤ 50%). However, these materials demonstrated tremendous potential for improvement with alternative edge preparation methods, and both benefitted more from laser cutting than from water-jet cutting. The other materials showed relatively high hole expansion performance in the pierced-hole condition (HER ≥ 100%), and water-jet cutting and laser cutting provided only modest improvements.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Temperature Effects on the Deformation and Fracture of a Quenched-and-Partitioned Steel

2013-01-0610

View Details

TECHNICAL PAPER

Deep Drawing by Indirect Hot Stamping

2013-01-1172

View Details

JOURNAL ARTICLE

Body Lightweight Design and Scalability with Structural Foam Solutions

2013-01-0669

View Details

X