Also at the show will be the latest solid carbide, low friction cutting, high performance SumiDrill Power-Series drills. For the first time, these bring the benefits of double margin relief and a high lubricity PCX 70 multi-layer coating aimed at general purpose hole making applications.
Meanwhile, SumiDrill SDM, specifically developed for stainless steel materials, has lower cutting force geometry due to a 140° point angle with a new design flat and narrow, single margin.
Higher efficiency turning of stainless steels can be achieved through AC6030M inserts that incorporate Absotech Platinum, a five-stage CVD multi-layer smooth surface coating with an outer layer of a newly developed titanium compound that helps prevent insert chipping. This super-smooth outer layer means chipping prevention is rated as double that of conventional inserts when used for long continuous cuts, finishing cycles and light interrupted cutting.
Absotech Platinum, which also has the advantage of greater adhesion resistance, will also be available on the new range of universal general turning tool grades AC8025P for applications on steel, where high reliability and versatility in service is required.
The Absotech Bronze TiAlSiN PVD coating is targeted at more unstable turning applications such as heavy roughing and interrupted cutting cycles. AC6040M inserts used with the coating offer low fracture and high cratering resistance. Plus, they come in a newly developed NEM chipbreaker.
For high speed finish turning, Sumitomo’s uncoated cermet grade is ideal for cast iron, soft materials, ferrous powdered metal and high carbon and alloy steels. Here, the T1000A grade’s dual structure gives enhanced wear resistance and toughness. Sister product the T1500A is intended for more general machining tasks, such as ultra-high quality finishing to achieve precise dimensional accuracy, especially in medium duty and light interrupted cycles.
Specially developed for hard turning applications to replace grinding, for instance, is the hybrid Sumiboron CBN high precision grade BNC2010 that features a seven-layer coating. On the other hand, the BNC2020 insert, with a tough CBN substrate and TiAiN layer, is best for continuous cutting, both lighter and heavy impact conditions and provides excellent resistance to chipping.
These CBN inserts incorporate a totally new series of Break Master NFV, NLV and NSV application-specific chipbreakers plus two special wiper inserts Type WG and WH to further aid surface finish on continuous cutting cycles.
