System and method of forming an injection-bonded joint

摘要

A method of forming an injection-bonded joint may include forming a chamber wall within a bondline region between mating surfaces of a first part and a second part. The chamber wall may divide a bondline length and define at least one adhesive chamber. The method may include injecting a structural adhesive into the adhesive chamber through an injection port, and discharging excess adhesive from the adhesive chamber through a bleed hole.

主权项

1. A method of forming an injection-bonded joint, comprising the steps of:
providing a first part having opposing inner and outer surfaces, and a second part having a cross-section comprising a C-channel; inserting a circumferential or planar edge of the first part into the C-channel; forming a chamber wall within a bondline region between mating opposing surfaces of the first part and the C-channel of the second part, the chamber wall dividing a bondline length and defining at least one adhesive chamber; forming a bondline dam along an upper edge of the C-channel on each opposing inner and outer surface of the first part, the chamber wall, the bondline dam, and the mating surfaces collectively enclosing the adhesive chamber; injecting a structural adhesive into each adhesive chamber through an injection port formed in the second part; discharging excess structural adhesive from each adhesive chamber through a bleed hole located between the first and second parts and formed within the bondline dam of the adhesive chamber; and collecting the excess structural adhesive in an adhesive reservoir fluidly coupled to each bleed hole, each adhesive reservoir being formed as one of a vertical column comprising a longitudinally-extending channel attached to the outer surface of the first part and an outwardly projecting shelf attached to an outer surface of the second part.