Trimming of polyester containers using a laser

Details Trimming of polyester containers using a laser Trimming of polyester containers using a laser

1984-02-24

1985-10-22

Albritton, C. L.

Electric heating

Metal heating

By arc

219121LN, 219121FS, 264 22, 264536, 425527, 425806, B23K 2600

Patent

active

045490660

ABSTRACT:
This relates to the cutting or trimming of a blow molded polyester resin article utilizing a CO.sub.2 laser. The article is axially positioned and rotated while the laser beam is focused and concentrated on a preselected portion of the article. The laser beam beneficially vaporizes the polyester resin in the cutting thereof as opposed to forming a dust. Further, the action of the laser is one wherein a certain melting occurs so that the resultant cut edge of the retained part of the article is rounded and sealed.

REFERENCES:
patent: 3469076 (1969-09-01), Saslawsky
patent: 3629546 (1971-12-01), Fry
patent: 3819317 (1974-06-01), Higginbotham
patent: 3960624 (1976-06-01), Erlandson
patent: 3981230 (1976-09-01), Lee
patent: 4174476 (1979-11-01), Boling et al.
patent: 4315133 (1982-02-01), Morgan et al.
patent: 4319120 (1982-03-01), LaRocca
patent: 4465919 (1984-08-01), Roder

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