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High Temperature Strength Reduces Soldering In Aluminum High Pressure Die Casting, Jacob A. Belke
High Temperature Strength Reduces Soldering In Aluminum High Pressure Die Casting, Jacob A. Belke
Dissertations, Master's Theses and Master's Reports
Die soldering, an adhesion defect in high pressure die casting (HPDC), is a symptom of localized sticking where a localized portion of the cast material is adhered to the tooling surface causing build up over time. This requires the tooling to be serviced which incurs additional costs to the process that gets passed on to the parts. Historically, soldering has been mitigated using lubricants, coatings, and alloy chemistry modifications but solder persists.
The Tresca friction thermomechanical model suggests soldering occurs when the local interfacial shear stress between the casting and die surface exceeds the local shear strength of the casting. …