Popis: |
Materials processing using a laser can be fast and precise. Quality control is usually achieved by “open-loop” adjustment of the laser process for the particular task and workpiece being processed. each different type of workpiece to be laser processed requires the development of a new procedure. This chapter looks at the conditions under which closed loop control of laser processes is practical. If on-line, closed loop control is not possible then quality control can only be achieved by on-line monitoring and then accepting or rejecting the work after processing. |