Method and apparatus for processing of the cylinder running surfaces of reciprocating piston - internal combustion engines

摘要

A method for the machining of the cylinder running surfaces of reciprocating piston - internal combustion engines by means of laser radiation under a nitrogen atmosphere, characterized in that the laser radiation (16, 20) of at least two wavelength ranges of the near infrared or visible spectrum, on the one hand, and of the ultraviolet spectrum, on the other hand, is applied, wherein the infrared - or visible laser beam (20) continuously or with a long pulse duration of up to 100 μs and the uv - laser beam (16) in the ns - region is operated, and wherein the laser radiation (16, 20) of at least one laser (14, 18) with the aid of a beam homogeneously isa gate (26) is homogenized