Inclusions
Particles of impurities usually oxides, sulphides, or silicates which separate from the liquid steel and are mechanically held during solidification. In some grades of steel, inclusions are made intentionally high to aid machinability.
Indexable Tool Stations
Special tool positions in a turret press which are equipped with numerically controlled servo drives rotating the punch and die together to profile contours, nibble angles or for other special applications.
Inductance Instrument
Instrument which is used to measure thickness of applied coatings to metal substrates. Unlike magnetic thickness gauges, inductance gauges can measure either conductive or non-conductive coatings on magnetic or non-magnetic substrates.