Glossary A-CC-CD-EF-GG-II-MN-PP-SS-SS-TT-VW Fillet curved junction of two surfaces, e.g. walls which would meet at a sharp angle. Flash a thin web or fin of metal on a casting which occurs at die partings, air vents and around moveable cores. This excess metal is due to necessary working and operating clearances in a die. Galling tearing out of particles from a metal surface by sliding friction. Gate (A) passage for molten metal which connects runner with die cavity. (B) the entire ejected content of a die, including castings gates, runners, sprue (or biscuit) and flash. Gooseneck a spout connecting a metal pot or chamber with a nozzle or sprue hole in the die and containing a passage through which molten metal is forced on its way to the die.