Mortise and Tenon

A hole is punched in one piece of metal to create the mortise. The corresponding “tenon” is shouldered and forged to size to fit the hole.  The tenon is trimmed to length and inserted in the mortise. The end of the tenon is peened over like a rivet. This locks the mortise bar against the shoulder of the tenon. Using this technique, joinery can become decorative elements adding interest and visual impact to the work.