An Eye for Quality
For years now, computer numerical control (CNC) machines have been producing parts for a variety of industries. An important element in the process is an experienced machinist who knows that, to meet stringent tolerances, machine tool wear must be monitored.Traditionally, an operator could rely on his own senses to deduce tool wear. As the tool becomes worn, the metal removed from the part changes shape and color. Even the noise made by the machine changes; this indicates that a tool change is...
Photonics Spectra, September 2008