TPT July 2009

T echnology U pdate

Deburring machine for round billets

Scarfing systems for tubes For over 25 years Alpha Metall GmbH & Co KG has developed and manufactured scarfing systems for removing the inside bead from longitudinal welded steel tubes. The scarfing systems are installed in more than 120 tube mills worldwide. Mr E Jakobs, the managing director, comments, “Our very successful current ID scarfing systems for ID 10mm up to 610mm are the result of continuous…development and high precision production.” Alpha Metall now introduces the fifth generation of ID scarfing mandrels, engineered by Markus Jakobs. Alpha Metall premium carbide cutting rings can be supplied with special geometry for meeting the specific requirements of tube manufacturers and processors in hard steel. The Alpha Metall multi-station strip edge shaving machine is recommended to avoid welding faults in galvanised or aluminised steel tubes, cleaning approximately 2mm from the top and bottom strip edges. The Alpha Metall oscillating tube weld bead outside scarfing machine can be adapted to different tube diameters to create a perfect outside surface, as required by the furniture industry and for formed and coated rectangle profiles. Alpha Metall is present, or has a representative, in all countries. Alpha Metall GmbH & Co KG – Germany Fax : +49 6831 506958 Email : info@alpha-metall.com • Website : www.alpha-metall.com

The framag deburring system is a new development, designed to automatically remove burrs from billets. The burr is produced when metal strands from a continuous casting process are cut to length by autogenous torch cutting. The burr causes disturbances in the further processing of the billets and therefore has to be removed, either manually with paving breakers or by flame scarfing. The framag deburring system achieves deburring by annular support of at least two sets of planing tools, radially adjustable to the material. The sets are arranged behind one another, longitudinally, and are staggered against each other set by set. The provision of two sets offers the possibility of fully deburring cut metal strands of different diameters. When the automatic deburring cycle is started, the billet positioned on the roller table is transported to the damped stop unit. The ductor blades are adjusted radially on the surface of the billet and the cylinder is activated. The burr is removed, and after this process the billet is transported on the roller table to its home position.

Cutting x 4

Linsinger has introduced a multi-cut machine for tube cutting, promising less cutting time, lower operating and tool costs with fewer line stoppages and downtime. The Linsinger multi-cut MC4 uses four cutters working simultaneously around the pipe for a fast, burr-free cut. An independent cutter head control also enables the cutting of rectangular pipe profiles. The MC4 uses smaller, long lasting and economical saw blades. In-line operation is possible in ERW lines; in the case of saw blade failure, the operation can continue with just two

cutting heads so minimising stoppage time. The Linsinger MC4–610 CNC tube cut-off machine can be used for flying cutting in an ERW line. For example, pipe of 219mm diameter and 6.3mm wall thickness can be cut in 5 seconds at a pipe speed of 32m/minute; pipe of 508mm diameter, with a wall thickness of 19mm can be cut in 15 seconds at a pipe speed of 15m/minute. Linsinger Maschinenbau GmbH – Austria Fax : +43 7613 8840 951 Email : maschinenbau@linsinger.com Website : www.linsinger.com

 Cutting burr removed from the billet

framag deburring system offers two modes of application, either offline deburring of the billet on one side, turning 180° and removing burr on the reverse side, or online deburring of both sides in the final engineering stage. The deburring machine is designed for billets with a diameter from 200mm to 450mm and a length between 4,000 and 12,000mm. One deburring cycle is approximately 15 seconds. Framag Industrieanlagenbau GmbH – Austria Fax : +43 7683 5040 86

Email : office@framag.com Website : www.framag.com

 The four cutter multi-cut MC4

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J uly 2009

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