LASER WELDING OF TRANSPARENT POLYMERIC MATERIALS

Disclosed herein are methods for laser welding together layers of transparent polymeric materials by first making high-contrast marks in transparent polymeric materials using femtosecond, picosecond or nanosecond pulsed fiber lasers and then creating localized welds at the areas of the high-contrast...

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Bibliographische Detailangaben
Hauptverfasser:	LI, SHENPING, KOSIK WILLIAMS, ELLEN, M
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	Disclosed herein are methods for laser welding together layers of transparent polymeric materials by first making high-contrast marks in transparent polymeric materials using femtosecond, picosecond or nanosecond pulsed fiber lasers and then creating localized welds at the areas of the high-contrast marks. Such welds can be formed in multiple layers of transparent polymeric materials. Systems for making welds and parts welded together according to the methods also disclosed. La présente invention concerne des procédés de soudure laser permettant d'assembler des couches de matériaux polymères transparents en faisant d'abord des marques à contraste élevé dans les matériaux polymères transparents au moyen de lasers à fibres optiques pulsés femtoseconde, picoseconde ou nanoseconde, puis en pratiquant des soudures localisées au niveau des zones des marques à contraste élevé. Lesdites soudures peuvent être pratiquées dans de multiples couches de matériaux polymères transparents. L'invention concerne également des systèmes permettant de pratiquer ces soudures et des pièces soudées selon lesdits procédés.