magnesium and other metal alloy sheet materials are deformed at hot forming temperatures into vehicle body panels and other articles . many such hot forming operations are improved in speed and product quality by predetermining a static recrystallization temperature of the sheet material . as the sheet material is being heated to its hot forming temperature , deformation is commenced below the static recrystallization temperature . as heating and deformation are continued , dynamic recrystallization of the workpiece occurs and deformation may proceed faster and to a greater extent .