TPT January 2014

Cutting

Specialist tube machines SMS Engineering is an Italian engineering and manufacturing com- pany that specialises in tube machinery. Itsmachinesperformfinishingoperations on metallic tubes by making use of simple hydraulic units, similar to small presses, which  are linked to a hydraulic power pack and duly positioned on a steel surface (being a rig or a plate) and can punch, flatten, swage (reduction of the tube  ends) and cut the tube. which is closed by the gripper, and then by pressing the start cycle. The machine makes all the operations and the finished tube comes back to the starting point where it is unloaded. Using this machine you can work bars of length 3m with the possibility of cutting the tube.

Options available include ordering the machine with automatic loading/ unloading and with the possibility of working commercial bar length of up to 6m. The machine can work up to ø120mm round tubes and square/ rectangular tubes maximum 80x80mm, with or without deformation in steel, stainless steel and aluminium. The machine is accurate as a laser machine but it requires lower investment. The best advantage of the plasma machine as regard to the traditional punching machine is that you can program it and avoid in this way the exchange operation of the toolings and corresponding costs for each different mould: different shapes of holes and hole-slots can be performed on the same tube. The PVD coating protects the tips against the high temperatures developed during the cutting process. In the case of ID scarfing in the tube making process, the internal weld bead, often around 6mm thick solid steel, remains inside the tube. During cut-off this inside wire is caught by the saw, causing a huge peak load, usually on one saw tooth. This can lead to tooth breakage of the saw blade. Kinkelder started developing a new saw in 2010, which resulted in the ScarfMaster ® – a carbide-tipped saw blade featuring a very specific tooth geometry, with the tips themselves being made of a highly shock resistant type of carbide. The teeth are supported by a saw body with extra strong shoulders, which give the combination tooth/ body very high stability and fracture resistance. “Not only is the blade life of the new ScarfMaster considerably longer, it can

The tube and all its machining cover a wide  range of uses and can be found in baby articles production (perambulators, push chairs, school desks), home appliances (clothing driers, domestic ladders, heaters, radiators), building production (scaffolding), automotive production (car safety bars, seat adjusting levers, head rests), leisure time (swings, deckchairs, camper accessories, tents), garden items (grass cutters, wheelbarrows), and furniture (chairs, shelves and office furniture). The machine working is provided through the manual feeding of the tube,

The plasma cutting machine is also very easy to use. In order to program it, you must be acquainted with the CAD-CAM systems and just a short period of training is enough to become confident. The machine is suitable for manufacturers of shelving, radiators, stairs, bed nets, ladders, parts for cars, furniture and similar tube products for different sectors.

SMS Engineering – Italy Email: commerciale@sms-italy.it Website: www.sms-italy.it

Efficient in-line cutting KINKELDER has developed a smooth cutting TubeMaster ® saw blade for orbital cut off applications. Its special tooth-geometry cuts a large range of thin- to thick-wall tubes. saw blades. Even high hardness materials such as X80 can be cut efficiently thanks to the type of carbide used.

“Key features of this TubeMaster saw blade are a special carbide grade and a high-tech PVD-coating,” said Kinkelder application engineer Leo Molenaar. “This, combined with a special cutting geometry, does not require much force for chip removal, assuring a milled-like finish of the cut surface. This special geometry also reduces vibration when cutting thin wall (<4mm) tubing, thereby achieving an excellent blade life.” The saw blade concept allows the use of one set of blades with medium tooth pitch to cut tubes with wall thickness from 3 to 9mm, and on some machines even up to 12mm. For wall thickness from 9 to 30mm, a coarse pitch is defined. TubeMaster saw blades are available in diameters from 300 to 420mm for all types of orbital cutting machines. Tubes for oil and gas, as well as structural pipes and hollow sections, form a primary market for TubeMaster

A Kinkelder saw blade

also cut 50 per cent faster,” emphasised Mr Molenaar. “Due to this, line speed can be significantly increased. Also, the line does not have to be shut down as often to change the saw blades, which means better uptime.”

Kinkelder BV – Netherlands Fax: +31 316 58 22 17 Email: info@kinkelder.nl Website: www.kinkelder.com

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J anuary 2014