The aim of warm sheet metal forming processes is to improve plastic flow of material, as well as to decrease
the springback effect. This investigation deals with the effect of temperature in the range from
20 °C to 700 °C on basic material parameters of stainless steel sheet metal such as yield stress, ultimate
strength, total and uniform elongation, strain hardening parameters and plastic anisotropy factor. The results
of carried out investigations will be useful for deep drawing processes preparation and modification, especially
considering proper forming temperature. It was determined that the most suitable temperature of warm
forming of the AMS 5604 stainless steel sheet is 500 °C. Examination of the influence of the temperature,
sheet thickness and material heating method (only sheet heating, sheet and forming die heating, isothermal
conditions) on springback quantity was performed in air bending test. The MSC Marc Mentat commercial
computer code was used for numerical simulation of analyzed forming processes.