Laser welding process for automatic transmission oil filters
OwnerBernhard Beer, Markus Beerinventors
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Abstract
The invention is directed to a process for the laser welding of two filter half-trays made of plastic and used in automatic transmission oil filters, wherein two filter half-trays are placed one on top of the other and welded along their common edge using laser light, one filter half-tray consisting of laser light-permeable plastic and the other filter half-tray of laser light-impermeable plastic, and the laser beam is passed through the laser light-permeable filter half-tray along the position of contact with the other filter half-tray, striking the -laser light-impermeable filter half-tray, and co-fusing of the two filter half-trays within the welding zone is achieved by light absorption of the laser light-impermeable plastic material.
Claims7
A process for the laser welding of two filter half-trays (1, 2) made of plastic and used in automatic transmission oil filters, wherein two filter half-trays (1, 2) are placed one on top of the other and welded along their common edge using laser light, one filter half-tray (1) consisting of laser light-permeable plastic and the other filter half-tray (2) of laser light-impermeable plastic, and the laser beam (8) is passed through the laser light-permeable filter half-tray (1) along the position of contact with the other filter half-tray, striking the laser light-impermeable filter half-tray (2), and co-fusing of the two filter half-trays within the welding zone (4) is achieved by light absorption of the laser light-impermeable plastic material, the edges to be welded being pressed into complete contact in a circumferential fashion, and a defined contact pressure on the filter half-trays (1, 2) being maintained during welding via receiving element (7) and/or hold-down tool (6).
Dependencies are inferred from the claim text.