Metal working – Method of mechanical manufacture – Combined manufacture including applying or shaping of fluent...
Patent
1994-10-20
1996-09-24
Hughes, S. Thomas
Metal working
Method of mechanical manufacture
Combined manufacture including applying or shaping of fluent...
29557, 359530, 409131, B23P 1700
Patent
active
055578365
ABSTRACT:
A method of manufacturing a cube corner article comprises machining first and second intersecting groove sets in a machinable substrate wherein the grooves in the first set are displaced by a distance d.sub.1 and the grooves in the second set are displaced by a distance d.sub.2. A third groove set comprising a plurality of parallel grooves displaced by a distance d.sub.3 is machined in the substrate, wherein d.sub.3 is different from d.sub.1 and d.sub.2. The machining steps result in a structured surface comprising an array of cube corner elements including at least two non-congruently shaped cube corner elements.
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Benson Gerald M.
Smith Kenneth L.
Caven Jed W.
Griswold Gary L.
Hughes S. Thomas
Kirn Walter N.
Minnesota Mining and Manufacturing Company
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