Panel jointing method used to form caisson structures, e.g. for lorry trailers, involves locating protrusions on cross pieces in panel slots before welding

摘要

The panel (6) is placed on top of a suitable support, slots (20) in the panel are used to locate protrusions (21) on the cross pieces (7-19) and an optionally continuous weld (24) is used to form a permanent connection between the panel and cross pieces.