Procedure for placing of breakpoint edges on workpiece has beam focussed in working volume inside workpiece at distance from surface and breakpoint edge formed by cascading of working volumes

摘要

A procedure for the placing of breakpoint edges on a workpiece is described. An effect is had on the workpiece with a beam of high density spatially along the breakpoint edges present. The beam (6) is focussed in a working volume (8) in the inside of the workpiece (1,3) at a distance from its surface (9). The breakpoint edge is formed by the cascading of working volumes. The workpiece is processed at the height of the breakpoint edge provided in several depths relative to the surface. The breakpoint edge is formed by perforation of the workpiece. The spacings of the working volumes is adjusted corresponding to the breaking force provided for the separation of the workpiece.