In this blog, we’ll be looking at some key facts about gravity-die casting – otherwise known as permanent moulding or chill casting. This process is used to create intricately-shaped components for industrial applications in the defence, medical, energy and other sectors.
Gas porosity may occur if hydrogen is introduced into the molten metal when it is poured into the mould. Hydrogen can be drawn in through moisture or water vapour in the atmosphere. Degassing is used to address this problem and it is carried out as a standard part of the Haworth Castings’ casting process.