Centerless grinding is a cylindrical grinding process variant without fixing the workpiece along its axis between centers.
In external centerless grinding, the workpiece lies between grinding wheel, workrest plate, and control wheel which regulates the speed of the workpiece. In internal centerless grinding, the workpiece lies between rolls or shoes and is driven by a control wheel or a faceplate.
Theory and Application
In 1953 Schleicher developed the first centerless grinding machine for needle grinding. In 1915 Heim introduced workrest plate and control wheel, which improved the performance and enlarged the field of application (Rowe 1964). Since then, centerless grinding is highly applicable for large batch and mass production. No clamping steps and no center holes on the workpiece faces are required, which eliminates process steps, reduces time, and diminishes possible form errors (Marinescu et al. 2007). Workpiece loading can be easily automated....
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