Boring, also called internal turning, is used to increase the inside diameter of a hole. The original hole is made with a drill, or it may be a cored hole in a casting. Boring achieves three things: ...

The Broadbent PA45X3M has a 12-in. spindle bore, with 90° hydraulic copying with auto nut retraction and semi-automatic cycle. Valve Components Ltd. (VCL) is among the most widely known manufacturers ...

Uncontrolled vibration creates multiple problems in metalcutting operations. Varying forces in the cutting process cause vibration and tool chatter that degrade part surface quality, quickly wear or ...