Rolling can be carried out in ordinary machine tools using rolling device, do not need *** * equipment, so it is used in production more, Japan HD rolling harmonic FHA-40C-160-E250 such as live cold pin hole finishing, oil cylinder hole and crankshaft journal transition arc finishing.



Rolling processing of material density, soft and hard uniformity is very sensitive to Japanese HD rolling harmonic FHA-40C-160-E250, uneven material will seriously affect rolling quality.

Rolling is a mechanical strengthening processing method that uses hardened and finely polished rollers or ball bearings to extricate the surface of parts in order to improve the quality of the machined surface. Rolling processing can reduce the surface roughness value of 2 and 3 levels, improve the hardness of 10% - 40% Japanese HD rolling processing harmonic FHA-40C-160-E250, surface layer fatigue strength generally increased by 30% - 50%. Roller or ball materials are usually made of high speed steel or carbide.



Roller rolling. Roller rolling is a simple and common hardening method. Single roller rolling pressure is large and unbalanced