Syalon ceramics in metal cutting

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Abstract
A range of ceramic materials has been developed at Lucas Syalon Ltd under the trade name of Syalon ceramics. Some properties of Syalon ceramics related to metal cutting are outlined and a review is given of the machining tests carried out at the Department of Engineering, University of Warwick. The results indicate that the materials ranging from cast-iron to Jncoloy-901 can be machined with Syalon ceramics at speeds and feeds which previously were not achievable with any other tool material, in terms of productivity an increase of six to tenfold has been achieved in different cases. These materials can cut at speeds normally associated with ceramics, but because of their better impact strength approaching those of ceramic coated carbides they are also able to take heavier chip loads.

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