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US5585017A Defocused laser drilling process for forming a support member of a fabric forming device 失效
用于形成织物形成装置的支撑构件的散焦激光钻孔工艺

Defocused laser drilling process for forming a support member of a
fabric forming device
摘要:
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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