Tensile testing is one of the most basic formability characterization methods available. Results from tensile testing are a key input into metal forming simulations.| AHSS Guidelines
Automakers contemplating whether a part is cold stamped or hot formed must consider numerous factors. This blog covers some important considerations related to welding these materials for automotive applications.| 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
Citation X-2. Jiang Xiaohei, “Li Auto’s L8 Pro Surpasses L9 as Top Safety-Tested SUV: Discover the Ultimate Driving Protection, “ May 8, 2023, 42HOW.com. Available from https://en.42how.com/2023/05/08/li-autos-l8-pro-surpasses-l9-as-top-safety-tested-suv-discover-the-ultimate-driving-protection/ Related Posts Filter by Post type Post Page Category main-blog Forming Springback Steel Grades AHSS Blog 3rdGen AHSS Roll Forming Roll Stamping Press Hardened Steels homepage-featured-top Resi...| 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
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
During a tensile test, the elongating sample leads to a reduction in the cross-sectional width and thickness. The shape of the engineering stress-strain curve showing a peak at the load maximum (Figure 1) results from the balance of the work hardening| 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
Roll Forming takes a flat sheet or strip and feeds it longitudinally through a mill containing several successive paired roller dies, each of which incrementally bend the strip into the desired final shape. The incremental approach can minimize strain localization and compensate for springback.| AHSS Guidelines
Car body-in-white (BIW) structures, such as pillars and rails, are increasingly made of complex stack-ups of advanced high-strength steels (AHSS) for vehicle lightweighting to achieve improved fuel efficiency and crashworthiness. Complex stack-ups comprise more than two sheets with similar/dissimilar steels and nonequal sheet thickness.| AHSS Guidelines
There is an increased need to join magnesium alloys to high-strength steels using resistance spot selding to create multi-material lightweight body structures for fuel-efficient vehicles.| AHSS Guidelines
Urbanization and waning interest in vehicle ownership point to new transport opportunities in megacities around the world. Mobility as a Service (MaaS) – characterized by autonomous, ride-sharing-friendly EVs – can be the comfortable, economical, sustainable transport solution of choice thanks to the benefits that today’s steel offers. The WorldAutoSteel organization is working on the Steel […]| AHSS Guidelines