TPT November 2007

Technology Update

Modular machines to improve strip edge

Precise CNC end-working of pipe, tube and shaft Arla Maschinentechnik GmbH, Germany, builds CNC controlled end-working machines for single-sided or double-sided end-working. The company’s machines are based on a solid frame with one or two precise machining units, and include a unique concentric work-holding technology. The Arla end-working machine can be compared to two separate CNC lathes, operated independently for every side of the workpiece. The principal difference is that this end-working concept incorporates a fixed workpiece and revolving tools. All machining units are directly driven by servomotors and are therefore very stiff and designed for high torques.

Julius GmbH, Germany, manufactures a modular range of strip edge processing machines that can be integrated with existing equipment. A Duo machine with six tools can easily be upgraded to a Trio, Quattro, Quinto or Sexto (18 tools), due to its modular construction. The Quinto strip edge processing machine cuts the edges of wound edge material. The strip edge trimming equipment has been tried and tested by the pipe manufacturing industry during weld joint preparation. If integrated in a pipe welding line, the thread chasing machine feeds both sides of a plane-parallel edge to the strip. The strip requires less trimming and weld joint defects are reduced by the use of the thread chasing equipment, resulting in increased welding speed and productivity. The thread chasing equipment can process the required strip edges on the stripping material by the flexibility of the tool application. The machine is equipped with technical options such as hydraulics Maschinenbau

› A Quinto strip

edge trimming machine integrated into a strip edge trimming and traverse winding

and pneumatics, spraying, blowing off of chips, chip guide, automatic quick release, and tool holders which allow an adjustment during the working process. The Tri-Step system is suitable for greater strip widths. In this module, the back tools are activated and adjusted by a motor, and the adjusting buttons are located on the front of the machine. Julius Maschinenbau GmbH – Germany Fax : +49 2058 87014 Email : info@julius.de Website : www.julius.de

› Arla end-working machine for pipe, tube and shaft

Latest additions to bending machine range

Typical applications include turning, tapping, threading, chamfering, boring, drilling, milling, de-burring, slotting, and other operations where additional slide units are necessary for a multi-axis machining. In order to produce complex contours, facing heads can also be implemented in dedicated machining units. Arla Maschinentechnik GmbH – Germany Fax : +49 2267 6585 70 Email : info@arla.de Website : www.arla.de

Silfax, France, has added three new machines to its product range. The company has also inaugurated a new subsidiary – Silfax North America – located in Michigan, USA. The SE32LR bending machine, with 10 axes, can handle tube diameters from 5mm to 32mm in steel and stainless steel. The machine features left and right bending, multi- height and multi-radius on several levels and two tools, and pushed carriage for rolling. Advantages include precision and repeatability of the axes, fast tool change, memorised tool adjustments, and loading/unloading system integration. Silfax’s S316 three axis bending machine can bend steel tube diameters from 4mm to 16mm, and aluminium tube up to 20mm. Advantages include precision and repeatability of the axes, compact size, multi-height work, and ergonomic height of loading. The company’s new electrical end-forming machine is available in rotary and linear models, SFER and SFEL, with 5, 8 or 12 ton capabilities. Features include numerical reference setting of tube on all the range, from two to eight steps, rolling up to three heads, and self diagnosis. All of the new machines feature reduced power consumption, low acoustic level, no pollutant emissions, remote maintenance service and reduced maintenance.

New release of mandrel bend monitor

OES, Inc, Canada, has launched a new, advanced version of its patent pending process variation monitoring system for mandrel bending applications: release B of the PVM2000-MB mandrel bend monitor. The new release provides dynamic in- process monitoring of each bend individually, a new bend force analysis of both an upper and lower tolerance limit, simplified ‘learn’, and enhanced user friendliness.

Silfax – France Fax : +33 472 310619 Email : info@silfax.com Website : www.silfax.com

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N ovember /D ecember 2007