TPT May 2012

C utting

Blade for cutting stainless thin tube

conventional saw blade (Ferro Max Tube); a new gullet design prevents big burrs from getting into the gullet for a long and stable service life; cutting lubricant for stainless steel is strongly recommended for the maximum performance of Ferro Max SUS Tube. Kanefusa claims that Ferro Max SUS Tube improves productivity by 50 per cent and achieves three to five times longer cutting life than conventional HSS metal saw blades. For those who are interested in improving productivity on cutting stainless thin tube, Kanefusa recommends its newest TCT saw blade, Ferro Max SUS Tube. The company will be happy to suggest an appropriate saw blade size and cutting parameter on your machine for kind and size of work material. Kanefusa – Japan Email: t-isogaya@kanefusa.co.jp Website: www.kanefusa.net

DEMAND for sawing with a high speed is increasing and for standard steel tube, sawing at three times faster cutting speed (Vc=300m/min) than conventional processes is becoming popular. Kanefusa has been supplying TCT saw blades that meet such requirements. Stainless steel – always a difficult-to-cut material – heats saw blade edges, which considerably decreases service life of saw blades. Therefore, it is difficult to increase cutting speed with a conventional saw and it is common to cut stainless steel tube at slow cutting speed (Vc=60m/min). This is due to the features of stainless steel such as low thermal conductivity,

adhesion, and work hardening. Especially for cutting stainless tube, swarf inside pipe bitten by blade edges cause edge chipping and shorten cutting life of TCT saw blades. Therefore, it has been common to use a HSS metal saw blade to cut stainless tube instead of TCT saw blade. In answer to the increasing demand for fast cutting of stainless tube, Kanefusa has announced a newly developed TCT saw blade named ‘Ferro Max SUS Tube’ for stainless thin-wall tube with unique technology. Some of the product features include: special tooth configuration and edge quality with an original coating; up to ten times longer service life compared to

Burr-free and chipless orbital cutting

THE SMI Group (Sistemi Meccanici Industriali Srl), whose head offices are situated in Varmo, Italy, has been actively involved in the tube processing industry for more than 30 years, designing and manufacturing a range of machines capable of transforming tubes made from copper, aluminium, stainless steel, titanium, cupronickel, bundy, PVC, PE, PPL, PA, PVC metal coated, and steel-wire-reinforced plastics, from coils into 3D components.

To ensure a good quality cut, SMI has registered two international patents for a complex cutting process that involves innovative software and the use of hi-tech metals with specific thermal treatment. Using this technology, SMI’s cutters are able to cut tubes with diameters varying from 1 to 40mm. Synthetically, the cutting process starts with a deep groove made around the circumference of the tube by means of a

Cutting technology from SMI

outside diameter, is obtained by a number of easily adjustable parameters such as the knife’s penetrating speed, the depth of the groove, the cutting advancement speed, the clamping and pull-apart or break-off system, speed and pneumatic power applied. SMI’s latest research is based on an innovative technology: the orbital cutting of irregular shapes. This technology has been developed and introduced to the market with the supply of a completely automatic working cell. Coiled copper tubes of up to 26.5mm diameter are transformed into cold-roll-formed T-shaped tubes, which are orbitally cut to the desired length, again without burrs, chips and dust. Sistemi Meccanici Industriali Srl – Italy

25 or 38mm knife that rotates around the tube. Two pneumatic clamps firmly catch the tube on either side of the groove, and separate it by a pull-apart system or a break-off system. A burr-free and chipless cut, maintaining the tube’s inside and

Fax: +39 0432 778411 Email: info@smisrl.it Website: www.smisrl.it

SMI equipment can process a wide range of materials

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M ay 2012