As the drum rotates, the motion of the balls crushes the clinker. The drum rotates approximately once every couple of seconds. The drum is generally divided into two or three chambers, with different size grinding media. As the clinker particles are ground down, smaller media are more efficient at reducing the particle size still further.
The Basic Principles of Roller Burnishing Fig. 1: Material flow The main goal of roller burnishing is to achieve highquality smooth surfaces or surfaces with predefined surface finish. One or more rollers or balls plastify and deform the workpiece's surface layer.