Performance of vibration welded thermoplastic joints

Details Performance of vibration welded thermoplastic joints Performance of vibration welded thermoplastic joints

1996-11-01

1999-02-23

Ahmad, Nasser

Stock material or miscellaneous articles

Sheets or webs edge spliced or joined

156 723, 156 731, 156 732, 156 734, 156 735, 156 736, 264257, 264445, 428 58, 428 60, 428 61, 428 62, 428 86, 428105, 428107, 428109, 428110, 428111, 428213, B32B 300

Patent

active

058741461

ABSTRACT:
The invention provides an improved method of vibration welding of thermoplastic joints. Such welding is conducted by vibrating two fiber reinforced thermoplastic parts under pressure along their common interface to generate frictional heat to melt and fuse their surfaces together. Fibers from at least one surface penetrate both into the weld and into the other surface. As a result, the welded, fiber reinforced thermoplastic surfaces have increased tensile strength than heretofore achievable. Vibration welds of reinforced thermoplastic surfaces according to this invention achieve a maximum tensile strength as high as about 120% of a weld formed by the unreinforced surfaces of corresponding thermoplastic materials.

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