Förfarande för tillförsel av kylmedel till en slipkopp samt slipkopp för att utföra förfarandet

摘要

The present invention relates to a grinding cup (10') for grinding buttons of a rock drilling bit. The invention also relates to a wear part (14) for the grinding cup. The grinding cup (10 @ ) has a passageway for fluid being so disposed and arranged relative to an axis (18) of rotation of the grinding cup (10 @ ) that a downstream end of the passageway disposed in a cavity (20) is displaced radially outwardly relative to the axis (18).