TPT May 2015

Technology News

Plate edge milling LINSINGER’S plate edge milling machine provides perfect profiles for welding, and handles metal sheets of up to 12m in length, 3m width and 150mm thickness, with even larger dimensions also available.

(eg X, Y, N or J) according to the particular job requirements. Special cutters are available for any edge geometry, including U-profiles. The range of tooling required for any job can be held in a magazine for fast changeover. The fully automatic tool changing station detects the correct tool using a proximity ID-chip embedded in each milling head. This system requires no operator intervention. The ‘height copying’ design of the Linsinger milling units resolves the potential issue of inconsistent edge profiles along undulations in heavy-duty plates. This design ensures a constant edge profile over the whole length of the sheet, even if it is not perfectly flat. Linsinger Maschinenbau GmbH – Austria Fax: +43 7613 8840 951 Email: maschinenbau@linsinger.com Website: www.linsinger.com

(ie no blue staining). This ensures consistent quality, free of thermal damage or weak points. Once the sheet to be machined lies on the roller table and the data is read in, everything runs fully automatically. The sheet is aligned based on the input data, and hydraulically tensioned. The disc-shaped cutter heads equipped with carbide tips then move into action. After milling the first longitudinal and transversal edges, the sheet is turned 180° by customer crane for final milling of the remaining two sides. All profiles are machined in a single pass, independently of whether the same geometry or varying geometries are required for the four edges. Feed rates of up to 10m/min can be achieved consistently. The profiled milling heads can be supplied in sandwich layers, which allow the cutter profile to be quickly reconfigured to any milling geometry

One application of Linsinger’s PFM 45/500 CNC is in tank production for the oil and gas industry. The machine mills sheet metal edges with high accuracy as a prerequisite for optimal welding results. Both dimensional accuracy and perfect preparation of the welding edges have a major impact on tank fabrication. The tolerances of the PFM 45/500 CNC are better than ±1mm width, and ±2mm length, easily surpassing relevant quality standards. The machine uses peripheral milling cutters designed for the HF milling process standard developed by Linsinger. HF milling is free of adverse thermal effects, and therefore there is no change to the metallurgical structure

Linsinger plate edge milling machine

Milling edge

Inline quality assurance for metal pipe production

allows analysis of the production in-line, with high accuracy.

weld almost all known metals at high production rates. One of the essential parts of the system is the in-line quality check. A new system has been developed and introduced to check the welded product at speeds of up to 50m/min. A combination of eddy current testing and a visualised surface detection

THE Machines produces metal pipe forming plants with efficient productivity and low power consumption. To use such machines, it is important to have an accurate testing system for the quality of the produced pipes. With the THE forming and welding technique it is possible to form and

THE Machines Yvonand SA – Switzerland Fax: +41 24 423 50 52 Email: info@the-machines.ch Website: www.the-machines.ch

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M ay 2015