TPT September 2012

23-27 October 2012

rollformers are widely used to form finely detailed profiles in cylindrical or conical shaped blanks from tubing, pipe or coiled and welded sheet metal. To form a profile the blank is positioned around the collapsed dies of the expander, which have the desired profile. Cone and drawbar are in the extended position. As the drawbar pulls the cone down the inclined surfaces of the cone force the jaws and dies outward. Outward expansion stretches the part past its yield point to the desired shape. When the part reaches its desired shape and size the drawbar/ cone assembly returns to the extended position and the jaws and dies return to their original position. When the profile is rather ‘sharp’, outer dies can be used for more precision. Other possibilities are heated dies to increase the deformability of metals like titanium or a combination of an expander and a shrinker to form intricate profiles. Rollformers can be used when not only fine detail, but also a good surface quality is required. The coiled and welded cylindrical blank is positioned over the rolling die of the lower spindle.

Fontijne Grotnes BV The Netherlands Hall 27 Stand G23 leader Fontijne Grotnes will be exhibiting its latest metal forming solutions at the two leading trade fairs in the metal forming industry this autumn: EuroBLECH 2012 in Germany, this October 23-27 and Fabtech in Las Vegas, United States, from 12 to 14 November. Fontijne Grotnes builds specialist production equipment that can be used in complex manufacturing processes and has been active in the metalforming industry for more than 100 years. Its sizing technologies, consisting of expanding, shrinking and rollforming processes, are a valuable contribution to diverse production processes, to calibrate and form different parts such as rings, cylinders and cones, which require tight tolerances. These processes often eliminate machining and fabricating steps, save time and material and thereby improve operational efficiency and profitability. Fontijne Grotnes expanders and WORLDWIDE technology

EBS Ink Jet Systeme GmbH Germany Hall 14 Stand Q32 EBS Inkjet Systems GmbH has a neat solution for customers who have to mark products for identification or tracking purposes, ie with batch numbers, product details or other data. The new Handjet EBS-250, for manual printing on metals, plastics, cardboard and many other materials, features large data memory, Bluetooth transmission and efficient ink management system. The company will also be displaying its economical solutions for automatic, contact-free marking, for manufacturing processes.

Website: www.ebs-inkjet.de

The Handjet EBS-250 from EBS Inkjet Systems

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