TPT May 2022

T E CHNOLOG Y

New methods of sawing large billets using Swiss Cut S carbide sawing blades

the machine frame has to absorb this in terms of stability. The result is a heavy, large saw. The trend towards thin-cutting technology in large carbide metal circular saws can no longer be stopped. A smaller production area and lower power consumption are encouraging a transformation to thin-cutting technology.

has always been done with large, heavy circular sawing machines. Generally, metal circular saws with brazed-on carbide teeth are used. Up to a billet diameter of Ø350mm, a carbide blade with a Ø1,100mm and a cutting width of 8.5mm is used. The required spindle drive power with 8 teeth in mesh, Vc120m/min and a feed rate fz of 0.15mm results in a drive power of about 90kW. This means that

JAPANESE company Tsune, and ITL from India, are using Swiss Cut sawing machines to cut large billets. The SW Wil Swiss Cut S carbide blade has a cutting width of 5mm, which comes from thin cutting technology. This parameter is used one to one in the drive power calculation formula so the required drive power is reduced by around 40 per cent or 40kW. According to Swiss Cut, the sawing of large billets

Swiss Cut www.sw-wil.com

The economical production of hollow square and rectangular structural tubes FCF ® FLEXIBLE cold forming

SEUTHE GmbH www.seuthe.com

energy for over 25 years or feeding it back into the grid to reduce energy costs. The use of modern motors with high efficiency classes means increased production rates and reduced downtime.

technology has brought an advanced solution to the production of hollow structural sections (HSS), specifically square and rectangular tubes. Developed and patented by the German company SEUTHE, which is now part of the Austrian ASMAG group, FCF flexible cold forming technology gives customers set-up times of less than one hour when forming a dimensional range of 1.5"–5" square (40 x 40 to 120 x 120mm) with only one tool roll set. SEUTHE can customise any dimension in small batch sizes without additional tool costs. Direct forming slashes the material thickening in conventional processing to a minimum in corner radii and assures an optimal use of the strip material. Using FCF ® saves three to five per cent of the strip width and there are no forming losses. Ecological thinking and climate change are being increasingly incorporated into the metal forming technologies. SEUTHE has been reusing braking

ASMAG USA www.asmagusa.com

FCF flexible cold forming technology gives customers set-up times of less than one hour

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MAY 2022