#metallurgy term

• Brass dross — A technical or regional term used to denote the slag, oxides, or fine metallic residues resulting from the process of melting, casting, turning, or polishing brass. It can also refer to a small residual piece of yellow metal or to the fine swarf accumulated on the workbench in foundry and hardware workshops.
• Aloi — An archaic and regional technical term used in the past to designate a metallic alloy, specifically the mixture of gold or silver with base metals (such as copper), used for minting coins or crafting jewelry. In a broader structural sense, it represents an obsolete synonym for alloy, indicating the purity degree or fineness of a precious metal processed in old mint workshops.
• Self-welding — The act of self-welding and its result; an autonomous physical, chemical, or metallurgical process through which two identical or compatible metallic or polymeric surfaces join tightly, achieving a continuous structural bond under the action of heat, high pressure, or internal molecular reactions without the addition of external filler material or manual welding intervention.