Physics of Machining

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A main component of machining on a lathe is torque, it is how the workpiece is rotated in he chuck. The chuck holds the workpiece in place and prevents it from moving in and out or side to side during the machining process. the spindle turns the chuck with then applies a torque to the workpiece and makes it spin since there are no other large forces acting upon the workpiece. The torque on the workpiece can be calculated by finding the force of the chuck on the workpiece and the radius of the workpiece.
The rest of the physics in machining on a lathe is in the sheer forces of the tooling acting upon the workpiece. These forces change be changed by adjusting the speed of the chuck, the feed rate of the tool, and the angle at which the tooling impacts the workpiece.