Creep-feed grinding on cylindrical grinding machine is […]
Creep-feed grinding on cylindrical grinding machine is a versatile process that can produce high-quality surfaces on a variety of parts. This process can be used on punches, rotary dies, polygons, and shaped blanks. During the process, the grinding wheel is dressed to the shape of the workpiece. Usually, one pass will achieve the desired surface finish, but a second pass is necessary if the surface finish needs to be more precise.
Compared to conventional traverse grinding, creep-feed grinding uses a lower feed rate to compensate for a high depth of cut. The low feed rate reduces the impact force on the grinding wheel, which results in lower chip loads. This reduces the overall cycle time. A machine that uses this process should have a high spindle power and static loop stiffness to maximize its productivity.
Another significant benefit of creep-feed grinding is its high depth of cut. Although different sources define the transition depth, the common standard for aircraft-engine-related grinding is 0.015 inches. But some experts believe that grinding as deep as 0.005 inches can qualify as creep-feed.
Cylindrical grinding is a highly versatile process that involves grinding the outside surfaces of a cylinder. The surface may be straight, tapered, or contoured. It is similar to lathe-turning operations and is a good alternative when the workpiece needs a more durable finish. Cylindrical grinding machines are typically equipped with multiple axes.