Disc Spring 50CrVa

According to DIN 2093 and (GB/T 1972-2005) standard, disc spring manufacturing process for the thickness is divided into three categories: The first type: thickness t < 1.25 mm, punching, cold forming, to wear away angle. The second type: 1.25 mm ≤ thickness t ≤6 mm, punching, cold forming, inside outside diameter processing to grinding flat or excellent punching, cold forming, remove the edge of angle. Third type: 6 mm ≤ thickness t≤16 mm, casting embryos, surface all processing to grinding flat and punching, cold forming, inside outside diameter processing to acute angle or fine punching, torsion spring cold forming, constant force spring acute angle.