METHOD FOR THE PRODUCTION OF A HOLE AND DEVICE

摘要

Previous methods for the production of a hole in a component are very time-consuming and expensive, as special lasers having ultra short laser pulse lengths are used. The inventive method varies laser pulse lengths and ultra short laser pulse lengths are used exclusively in the region which is to be removed, wherein it is possible to have a noticeable influence on through flow and/or out-flow behaviour. This is, for example, the inner surface of a diffuser (13) of a hole which can be produced in a precise manner using ultra short laser pulse lengths.