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Ceratizit has unveiled the CTP5620 and CTP5630 grades, developed for bar peeling nickel-based alloys, at EMO 2009.

The company said the two cutting tool grades benefit from its Hypercoat coating technology.

CTP5620 is a fine-grain grade characterised by high abrasion resistance in both the substrate and the coating layers.

CTP5630 is a heat-resistant tough grade that, according to Ceratizit, is proving very reliable even when used in less stable machining applications.

The company has optimised the cutting edges of inserts manufactured from these grades, tailoring them to the requirements of these new carbide grades.

As a result, the special chip groove and cutting edge ensures good surface finish and optimum chip formation.

The edge-preparation necessary for this kind of application have also been adapted to guarantee reduced vibration and process security.

Initially, these new grades are available in the YNUF 201220 insert style, and can be used as a single insert for smaller diameters, and as a finishing insert for tandem systems for larger bar diameters.

Sascha Rode, bar peeling product manager at Ceratizit, said: ‘In addition to the machining of smaller diameters of 20-60mm, these inserts are also suitable for the machining of bars with diameters larger than 200mm, leading to improved performance in bar peeling operations when compared with classic turning operations.’

Ceratizit

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