Automakers face conflicting constraints when designing new body structures: With escalating concerns about human-induced green-house gases, global legislators have passed increasingly stringent vehicle emissions regulations, with even more aggressive targets planned for the coming years. Lighter weight body structures promote reduced vehicle emissions. Fuel price increases lead to greater consumer sensitivity to vehicle fuel economy. […]| AHSS Guidelines
A consortium of 35 global sheet steel producers representing 22 countries began the UltraLight Steel Auto Body (ULSAB) program in 1994 with the goal of designing a lightweight steel auto body structure that would meet existing and proposed safety and performance targets. The body-in-white (BIW) unveiled in 1998 validated the design concepts of the program, […]| AHSS Guidelines
Started in 2008, the FutureSteelVehicle (FSV) program built on more than a decade of work finding ways to decrease vehicle mass, reduce cost and meet comprehensive crash safety standards, all in pursuit of a smaller environmental footprint. FSV validated wide ranging research into the practical use of AHSS, innovative design and manufacturing technologies, and proposed […]| AHSS Guidelines
Vehicle programs must balance performance, safety, fuel efficiency, affordability and the environment, while maintaining designs that are appealing to customers. Use of higher strength steels allows for a reduction in the sheet metal thickness and in turn vehicle mass. The increased ductility offered by Advanced High Strength Steels facilitates part consolidation also contributing to lower weight […]| AHSS Guidelines
Contributed by Menachem Kimchi, Ohio State University Advance High-Strength Steels (AHSS) have been resistance welded in automotive production lines in the last few years. However, the high strength and hardness can be expected to affect spot weld failure modes during the typical peel testing and chisel testing performed for weld quality evaluation. A well-established industry […]| AHSS Guidelines
steel Bubble chart. steel Banana diagram. Steel strength ductility diagram—it’s been called a lot of things over the years. Now called the steel Global Formability Diagram, a new 2021 version is available for download and use. In addition in this article, we define Advanced High-Strength Steels, Ultra-High-Strength Steels and 3rd Generation steels.| AHSS Guidelines
Our most recent Autonomous vehicle engineering project, Steel E-Motive, was designed to unveil and meet the challenges of future autonomous vehicles.| AHSS Guidelines
Using Life Cycle Assessment, Mobility as a Service (MaaS) mobility solutions like WorldAutoSteel’s flaghip Steel E-Motive (SEM) program have the potential to contribute to a reduction in GHG emissions, helping to achieve these global targets and specific policy objectives.| AHSS Guidelines
Tensile property characterization of mild and high strength low alloy steel (HSLA) traditionally was tested only in the rolling direction and included only yield strength, tensile strength, and total elongation.| AHSS Guidelines
Steels with a fully martensitic microstructure are associated with the highest tensile strength – grades with a tensile strength of 2000 MPa is commercially available, and higher strength levels are under development.| AHSS Guidelines
Key materials characteristics for formed parts include strength, thickness, and corrosion protection. Tailored products provide opportunities to place these attributes where they are most needed for part function, and remove weight that does not contribute to part performance.| AHSS Guidelines
Characterizing the response during high-speed testing provides critical information used in crash simulations, but these tests often require upgraded equipment and procedures. Conventional tensile testing equipment may lack the ability to reach the required speeds (on the order of 20 m/s). Sensors for load and displacement must acquire accurate data during tests which take just a few milliseconds.| AHSS Guidelines
Martensitic steel grades provide a cold formed alternative to hot formed press hardening steels. Not all product shapes can be cold formed. For those shapes where forming at ambient temperatures is possible, design and process strategies must address the springback which comes with the high strength levels, as well as eliminate the risk of delayed fracture.| AHSS Guidelines
The Resistance Spot Welding (RSW) process is often used as a model to explain the fundamental concepts behind most resistance welding processes. If the sheets are steel, the resistance to the flow of current of the sheets will be much higher than the copper electrodes, so the steel will get hot while the electrodes remain relatively cool.| AHSS Guidelines
Resistance welding processes represent a family of industrial welding processes that produce the heat required for welding through what is known as joule (J = I Rt) heating.| AHSS Guidelines
H-66. G.T. Halmos (Editor) Roll Forming Handbook (1st ed.). CRC Press, 2005. doi.org/10.1201/9781420030693. Related Posts Filter by Post type Post Page Category homepage-featured-top main-blog Blog Production Managers Tool & Die Professionals Steel Grades AHSS 1stGen AHSS 3rdGen AHSS 2ndGen AHSS Metallurgy Lower Strength Steels Conventional HSS Roll Forming Sort by Title Relevance Cold Stamped or […]| AHSS Guidelines
