What are the functions of a riser?
What are the functions of a riser? Main function of riser is to feed the casting during solidification so that no shrinkage cavities are formed. It is the endeavor of casting designer to reduce all the hot spots so that no shrinkage cavities occur. What is the function of runner and riser? In a casting both runner and riser is used to pass the molten metal into the mould cavity. The main difference is that runner is a horizontal pathway into the mould cavity whereas riser is a vertical pathway . What is a function of riser in sand casting?...