Defocused laser drilling process for forming a support member of a fabric forming device
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United States of America Patent
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Dec 17, 1996
Issued Date -
N/A
app pub date -
Sep 16, 1994
filing date -
Sep 13, 1993
priority date (Note) -
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Abstract
Method of forming a topographical support member for use in producing nonwoven fabrics such as tricot nonwoven fabrics is accomplished by focusing a laser beam so that the focal point is below the top surface of a starting workpiece. The laser beam is used to drill a predetermined pattern of tapered apertures. The pattern of tapered apertures forms the cluster of peaks and valleys surrounding each aperture on the top surface of the resulting support member.
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Family
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Cited Art Landscape
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