Method of forming a complex profile of uneven depressions in the

Details Method of forming a complex profile of uneven depressions in the Method of forming a complex profile of uneven depressions in the

1998-07-21

2000-09-19

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Laser ablative shaping or piercing

21912161, 21912175, 2191218, B23K 2606

Patent

active

06120725&

ABSTRACT:
A method of forming a complex profile of uneven depressions in the surface of the ablatable workpiece by laser ablation with the use of a simple optics or a mask of a simple configuration. The method includes the steps of determining the complex profile in accordance with a particular feature to be given to the surface of the workpiece, then dividing the complex profile into more than one simple and regular waveform patterns of different characteristics, and irradiating an energy beam to the surface of the work piece to form the individual regular waveform patterns successively in an superimposed fashion by ablation in the surface of the workpiece. Accordingly, the desired complex profile can be easily obtained at an improved efficiency and at a moderate cost.

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