We recently saw some unusual axes, but they didn’t include one made by inflating metal. Maker Connor Holland is back with another very cool project – a lightweight axe he created by welding pieces of sheet metal, then expanding them with air into a pillow-like axe and handle. He attached bent steel blades to give it a sharp edge.
Hydroforming is the process of shaping metal structures by inflating them with pressurized water or air. Maker Connor Holland has been experimenting with the technique, and shared this compilation of some of the more interesting and satisfying results. The pillow one looks like a metal whoopee cushion.