The elu ike laser doo na-enwu n'elu nke workpiece, nke mere na workpiece ruru agbaze ebe ma ọ bụ esi ebe, mgbe elu mgbali gas efep efep na gbazee ma ọ bụ vaporized metal. Na ije nke ikwu ọnọdụ nke doo na workpiece, ihe na-emecha kpụrụ n'ime a mgbawa, ka iji nweta nzube nke ịcha.