There are similarities in all types of grinding, but there are also differences in the processes that need to be considered when choosing a specific grinding process. For OD or outside diameter grinding, the equipment is used to grind the exterior surface of the workpiece, producing a smooth, even and aesthetic look to the exterior of the part.
Cylindrical grinding processes and equipment can be used for both OD grinding as well as ID or interior diameter grinding. In addition, for OD grinding, it is also possible to use centerless grinding equipment, with both processes, offering different advantages that are worth considering.
Cylindrical Grinding
Cylindrical grinding is used to create the shape and surface on parts and components with a center axis of rotation. In other words, the workpiece must be symmetrical to be used in the equipment. This is the same with centerless grinding, and both types of processes can create a specific level of surface removal required for any standards.
For this type of grinding for the outer diameter, the workpiece and the grinding wheel are both rotating in opposite directions, which creates the controlled and consistent grinding action. The workpiece is held in position at both ends, which allows for precise control of the process.
Centerless Grinding
For centerless OD grinding, the workpiece is not held in place, but rather it is held by the two wheels which rotate in the same direction but at different speeds. This allows the workpiece to be held in place, and a precise amount of the surface removed in a short period of time.
The benefits of centerless grinding include faster processing of the material and less time spent on positioning the piece in the equipment. This process can also be used for more complex types of shapes, and it is also capable of producing parts to extremely high tolerances.
