Design and development of a micro-LDH apparatus to determine formability of sheet metal under hot stamping conditions using Gleeble

In the last few years, demand for hot stamped components has increased in automotive industry. Determination of formability under stamping is challenging due to elevated temperature, fast cooling, and high punch velocity. Although there was various strive determination, but were limitations with experiments like non-uniform heating specimen, strain, temperature distribution. Therefore, this work, an experimental apparatus developed determine at room conditions, any complex process cycle involving cooling. New specimen designed produce different strain paths, uniform, homogenous distribution help FEM software using thermomechanical thermoelectrical simulation. A micro hemispherical dome-based Solidworks. The used conjunction thermo-mechanical simulator (Gleeble-3800). Thermomechanical analysis done PAM STAMP optimize size shape get uniform paths. thermoelectric model Abaqus 6.14 specimen. enables choosing appropriate polarity electrical cable connection achieve Strain path profiles experiment simulation compared. Further, a forming limit curve verify feasibility apparatus. For test apparatus, selected. This new design can be range temperatures up 1000 °C, materials (aluminum, magnesium alloys, grade steel, etc.). It concludes that polarities critical specimens.