TPT May 2011

T echnology U pdate

Replaceable carbide tip saw blade

LINSINGER produces sawing and milling technology and has recently unveiled the new LINCUT ® replaceable carbide tip saw blade. Linsinger said it has made another technical break-through: screw-on cutting tips made of coated carbide metal, which are very easy to change, and revolutionise the cutting of steel billets – which the company said are a much more economic solution than the old conventional brazed saw blades. The essential hallmark of the patented LINCUT System is that the carbide inserts are not brazed but screwed on the base body of the saw blade. So, if required, the inserts can be easily changed by the sawing machine operator. Linsinger has even developed a complete tool changing system, from the screwdriver up to the transport carriage to keep the changeover work quick and simple. The special screws, which fix the inserts on the base body, have also been purpose engineered by Linsinger. It is now possible for the operator to quickly and cheaply replace worn and broken saw teeth directly on or at the sawing machine. The old cumbersome method of dismounting the conventional billet saw blade, transporting it to the resharpening shop for repair and resharpening is now obsolete. This means less machine idle time and higher availability. The more stable LINCUT blade allows the cutting capacity to be increased by 30%. LINCUT reduces simultaneously resharpening, transportation, storage and operating costs. Further points that make LINCUT attractive are that the carbide tip coating greatly enhances lifetime, and the saw blade body is more robust. One saw blade body can be re-fitted onto the sawing machine up to 60 times. Altogether the lifetime of LINCUT tools is up to four times higher than the brazed saw blades for standard steels. For especially tough steels, LINCUT’s lifetime advantage is even greater. The rail-wheel example has large Linsinger inclined bed circular sawing

machines producing full capacity for over a year with LINCUT replaceable carbide tip saw blades. That totals an impressive 65,000 cuts with a 500mm diameter material, and an overall trouble- free cutting surface of 12,800m². All five sawing machines require just one operator, who also replaces the carbide tips. The example illustrates the possible savings with LINCUT ® technology: with five machines, conventional saw blades and 3-shift operation, 170 saw blades have to be repaired every fortnight. Total transportation weight 23 tons net = one truckload to the blade repair centre. With LINCUT technology one small postal package of replaceable carbide tips is sufficient. LINCUT replaceable carbide tip saw blades are available with diameters from 1,000 to 2,500mm exclusively for Linsinger sawing machines. The combination of machines and tooling from a single, reliable source is the competitive trump card exclusively available to Linsinger customers, who benefit from Linsinger’s sawing technology founded on the world’s largest sawing machine manufacturer Wagner Germany. Linsinger now extends this role as the number one global player in the field. The inclined bed circular sawing machines type KSS, available exclusively from Linsinger, have already been mentioned in connection with LINCUT. The new generation of KSS inclined bed sawing machines combine all the benefits of vertical and horizontal sawing: The KSS 3-point clamping system ensures more secure clamping while allowing for greater material deviations. Cutting forces are directed into the foundations, the sawing machine is more rigid and the chips flow straight down to the conveyor. The 45° inclined bed circular sawing machine is especially suitable for large billet diameters of up to 780mm, and allows blade costs to fall below € 2 per cut. The inclined bed circular sawing

The LINCUT from Linsinger

machines are the ideal solution for a wide range of applications, including steel and tube mills, forging plants, rail-wheel manufacturers and automobile suppliers. All the leading names can be found on Linsinger’s customer reference list. For example, one leading automobile supplier is now benefitting from over 20 inclined bed circular sawing machines from the company. A leading customer originating from India has ordered eight Linsinger sawing machines for one of the largest tube mills in the Gulf. A further 13 large carbide tip circular sawing machines are now being installed in a Brazilian tube mill. Almost 60 machines are now operating in Russia, where Linsinger is the clear favourite. LINCUT combined with inclined bed circular sawing machines is now recognised as a “must have” for Linsinger customers to maintain their own competitive advantage. Linsinger also reports that new sawing technology developments are proving successful in ongoing trials. Linsinger CEO Mr Hans Knoll said: “Groundbreaking sawing machine developments are already exceeding expectations under production conditions. In close cooperation with our customers, Linsinger continues to develop solutions that offer the deciding competitive advantage to customers. Linsinger’s successful relationships with customers are founded on comprehensive customer service throughout the extensive lifetime of the machine.” Linsinger – Austria Website: www.linsinger.com

Connections for offshore operation

SPECIALISTS from TMK, a global producer of pipes for the oil and gas industry, took part in lowering a tubing string with premium- class threaded connections into a well more than 2.5km deep, situated on Lukoil’s Yury Korchagin oil deposit in the Caspian Sea.

The pipes were produced at TMK’s Sinarsky Pipe Plant, and the finishing threading operations were carried out at the TMK-Kaztrubprom manufacturing facility. After the running-in, the tubing string was subjected to an air-tightness test pressure

of 200 atmospheres for 30 minutes. During the testing, none of the TMK pipes was rejected as defective by the customer. TMK – Russia Website: www.tmk-group.com

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M ay 2011

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