Description

of PhD: Remanufacturing damaged molds and tooling by metal additive
manufacturing (AM) offers major advantages: (i) it is a more environmentally friendly solution

that preserves natural resources and supports sustainable development, and (ii) it can

significantly reduce maintenance costs for industry [CHE14]. Metal AM processes involve

complex couplings between multiple physical phenomena (thermal, metallurgical, mechanical,

fluid flow, etc.), which makes interpretation and control challenging.

Today, the main criterion used to assess repair quality is often limited to restoring geometry.

This is insufficient to meet the mechanical requirements for repaired molds, which

will be subjected to severe cyclic loading. Although studies have validated the feasibility of

restoring molds by AM, controlling mechanical properties after repair remains very difficult

and directly affects the serv...