Metal Box Corner 09 06 2025

 I never thought about it this way.  To make a metal box corner like this.  Essentially seamless, folded in, and then one rivet to hold the fold.

In the age of robotics and high tech mfg processes, a metal joint like this could be made.  But is it structurally superior?  It provides upright rigidity as well as longitudinal side rigidity.  In the mfg process less cutting would be needed.

But also in today's age of little quality control, little individual product review before sale, little standards, I could see that the four corner folds would be a mess?

Another advantage would be in is a waterproof basin, so in effect you don't have a bottom seam to start to rust.

I think I have seen bread baking pans made like this, but with the corner fold exterior.  I think Chinese food paper board boxes are made that way.  I really never thought of making a mental inventory of examples.

© 2025 Thomas Paul Murphy