Cutting Speed

Cutting speed (also called surface speed or simply speed) may be defined as the rate (or speed) that the material moves past the cutting edge of the tool, irrespective of the machining operation used. A cutting speed for mild steel, of 100 ft/min (or approx 30...

Crankshaft

The crankshaft, sometimes abbreviated to crank, is responsible for conversion between reciprocating motion and rotational motion. In a reciprocating engine, it translates reciprocating linear piston motion into rotational motion, whereas in a reciprocating compressor,...

Circlip

A circlip (a portmanteau of ‘circle’ and ‘clip’), also known as a C-Clip, Seeger, snap ring or Jesus clip, is a type of fastener or retaining ring consisting of a semi-flexible metal ring with open ends which can be snapped into place, into a...

Chamfer

A chamfer is a beveled edge connecting two surfaces. If the surfaces are at right angles, the chamfer will typically be symmetrical at 45 degrees. (By contrast, a fillet is the rounding off of an interior corner, and a rounding of an exterior corner is called a...

Center Drill Bits

Center drill bits are used in metalworking to provide a starting hole for a larger-sized drill bit or to make a conical indentation in the end of a workpiece in which to mount a lathe center. In either use, the name seems appropriate, as the bit is either establishing...