Internal cylindrical grinding is a machining process used to shape the inner surface of workpieces. This type of grinding can be used to create parts with complex shapes and intricate details. It is done by rotating the material being machined so that the grinding tool can apply pressure and move along the length of the workpiece. The grinding process involves the use of a grinding wheel and/or a workholding spindle. The spindle is typically held in place by a workpiece holder or a collet chuck.
Internal cylindrical grinding is typically used to produce parts with tight tolerances and accurate surface finishes. It can also be used to improve the straightness of parts or to achieve a stepped profile. In some cases, internal cylindrical grinding may be necessary to remove burrs or other surface imperfections.
The grinding wheel used in the process is typically made from a diamond coated abrasive material. This material is capable of removing a very small amount of material in a very short period of time, resulting in a smooth and highly accurate surface finish. The speed of the grinding is determined by the size and shape of the workpiece, as well as the type and size of the grinding wheel.
There are two common methods used to internally grind cylindrical parts. The first method is the centerless grinding process, in which the part is placed between two rollers and the grinding wheel presses on one side of the part as it rotates, producing a smooth finish. The second method is the plunge grinding process, in which the part is mounted on a spindle and plunged radially along its axis of rotation, creating a step profile.
Internal cylindrical grinding is used in a variety of industries, including automotive, aerospace, and medical device manufacturing. It is a highly specialized process that requires a technically trained operator and specialized machinery. The process takes minimal time if the operator is knowledgeable and has the right tools. It can also be very cost-effective when compared to other machining processes. When designing components and parts with complex internal shapes, internal cylindrical grinding is a great option to consider.
