Sintered magnets are generally difficult to achieve net shape of practical application at once due to the technological complexity of molding and sintering process, therefore, machining process for blank is obviously inevitable. Chinese magnet manufacturers have fully absorbed processing experience from ceramic and crystal industry over the years. As a hard and brittle material, rare earth permanent magnets made by powder metallurgy can only utilize cutting, punching and grinding among traditional processing technology. Irregular shaped magnets are mainly limited to special Neodymium magnets and special Samarium Cobalt SmCo magnets.
Machining of Special Shaped Magnets
Special shaped magnets refer in particular to the magnet with irregular shape which mainly applies to specific demands. With the process of functional complexity and miniaturization accelerates, permanent magnet for consumer electronics is also required to adopt this trend. The machining process of the special shaped magnet is much more complex than the magnet with regular shape. Thus often requires combining several different processing technology.