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US 2010/0147812 A1Published application
Method For Producing A Hole
AssigneeSiemens Aktiengesellschaft
InventorsThomas Beck, Silke Settegast
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Abstract
There is described a method for producing a hole using e.g. a lasers, wherein short laser pulse durations are used. The laser pulse durations are varied, short laser pulse durations being utilized only in the area to be removed in which an influence on the penetration behavior and discharge behavior is noticeable while longer pulse durations of >0.4 ms are used. This is the case for the inner surface of a diffuser of a hole, for example, which can be produced very accurately by means of short laser pulse durations.
Claims28
-42. (canceled)
A method for producing a hole in a layer system, comprising:
- providing a layer system having a metallic substrate and an outermost ceramic layer,
- providing a pulsed energy beam with a shorter pulse length and a longer pulse length;
- and
- using different pulse lengths in different ablation steps, wherein the longer pulse length of the different pulse lengths has a pulse lengths of >0.4 ms.
1 more element
Dependencies are inferred from the claim text.