U shaped AlNiCo Magnet

The Alnico magnet(mainly composed of aluminum, nickel and cobalt) is manufactured through either the casting or the sintering process. Compared to modern materials alnico has a lower coercivity. The main advantage of alnico is the very low temperature coefficient and the wide temperature range from -250°C to over + 500 °C for practical use. Alnico is very hard and brittle. Machining or drilling cannot therefore be accomplished by ordinary methods. Holes are usually cored in