Ultrasonic welding with controlled seal compression

Details Ultrasonic welding with controlled seal compression Ultrasonic welding with controlled seal compression

1990-06-21

1992-05-05

Simmons, David A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156 731, 156358, 156359, 156378, 1565801, 4251742, 264 23, B32B 3100

Patent

active

051103818

ABSTRACT:
A two stage process of ultrasonic welding is disclosed wherein a first stage determines the amount of displacement required to produce a desired compressive force upon a seal or spring. This displacement is sent to a second stage where the desired displacement is achieved through ultrasonic bonding.
In an alternative embodiment, the first stage determines the amount of displacement required to achieve non-compressive contact between the gasket (seal) and the component. This displacement is summed with an empirically determined displacement required to obtain a desired compressive force upon the gasket. The summed displacement is used as the desired displacement for the second stage.

REFERENCES:
patent: 4410381 (1983-10-01), Chapman
patent: 4549269 (1985-10-01), La Pointe et al.
patent: 4631685 (1986-12-01), Peter
patent: 4696708 (1987-09-01), Keller et al.
patent: 4741796 (1988-05-01), Althaus et al.
patent: 4897134 (1990-01-01), Doering

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