Ceramic Inserts For Hard Turning

When hard turning with ceramic or cbn inserts crater wear will occur on optimized processes though if it occurs excessively there may be a need to reduce speeds or switch to an insert with a lower cbn content and better wear resistance.

Ceramic inserts for hard turning.

Superior heat resistance enables high speed machining aluminium oxide ceramic. Kyocera s ceramic inserts are designed to resist oxidation and maintain hardness at elevated temperatures. However the cbn pcbn and ceramic inserts can be expensive especially when compared with the relatively low costs of grinding wheels. The life of cbn inserts typically is more predictable than that of ceramic inserts.

For steels softer than approximately 55 hrc use ceramics or cemented carbide inserts. Flank wear also commonly appears in hard part turning and typically indicates a need to reduce speeds. With a properly tuned hard turning process these inserts are second only to grinding in terms of holding diameter tolerances. Ceramic is not as tough as cbn and it normally is not used when tolerances are tighter than 0 001 inch.

Hard part turning offers improved flexibility better lead times and higher quality. Since hard parts are usually at the end of the part creation cycle there is a high amount of value in the part already. Use optimized cbn grades for hard part. Cubic boron nitride cbn grades are the ultimate cutting tool material for hard part turning of case and induction hardened steels.

Predictability of tool life is extremely important in hard part turning said geisel. Features of ceramic inserts. Applying ceramic cutters is different but it s not alien.