|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Cast Shop Technology
||C-44: Study of the Effect of the Surface-roughness of Dies and Tooling for HPDC on Soldering
||Federico Simone Gobber, Andrea Pisa, Daniele Ugues, Silvia Lombardo, Mario Rosso
|On-Site Speaker (Planned)
Die-casting processes involve the use of steel dies, typically realized in AISI H11 or H13, with or without a coated surface. Mechanical and chemical stresses and thermal cycles act producing stresses, plastic deformation, corrosion and metallization on the mold surfaces. In this work the interaction between the hot work steel AISI H13 and the aluminum alloy EN AB 46000 were evaluated in terms of intermetallic compounds nucleated at the die – Al alloy interface and the adhesion strength for different roughness of the die surface. Two of the tested roughness were finally applied on the surface of die inserts. The comparison between castings tests carried out in laboratory conditions (aluminum alloy casted on the steel surface) and in real-work conditions (aluminum alloy injected with a certain pressure on the steel surface) allowed to evaluate the effect of surface-roughness on soldering mechanisms.
||Planned: Light Metals