Post n.005 - Design/Methodology/Manufacturing

Dielife is one of the most important factors affecting productivity and profitability in hot extrusion of metals.
It has been reported that extrusion dies most often fail by fatigue fracture. Experimental studies have shown that cracks preexist in dies due to various factors including heat treatment, machining, and surface hardening.
High levels of repeated mechanical and thermal loads result in crack propagation leading to ultimate fracture failure.