MACH 2016 has been chosen by Sumitomo Electric Hardmetal as its shop window for the latest tooling developments and tool coating technologies. Products on view from the portfolio of turning products will be new carbide grades AC6030M and AC6040M for stainless steels, T1000A and T1500A uncoated cermet grades for general purpose turning tasks and BNC2010 and BNC2020 cubic boron nitride (CBN) grades for specific use in hard turning. Also launched is the anti-chipping Absotech Platinum coated AC8025P general purpose turning insert.

Also at the show will be the latest solid carbide, SumiDrill Power-Series low frictional cutting, high performance drills. These include, SDP that brings the benefits for the first time of 'Double Margin' relief and 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 deg point angle with a new design flat and narrow, single margin.

In the latest turning product development releases, 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.

With a stronger cutting edge and targeted at the more unstable turning applications such as heavy roughing and interrupted cutting cycles, the low fracture and high cratering resistance of AC6040M inserts with Absotech Bronze TiAlSiN PVD coating has the added advantage gain from a newly developed NEM chipbreaker.

When 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 has a dual structure giving enhanced wear resistance and toughness and is complemented for more general machining tasks with T1500A. This insert is ideal for 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, the hybrid Sumiboron CBN high precision grade BNC2010 is ideal for finish turning with its seven-layer coating. Meanwhile, 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.