TPT March 2013

Stainless steel production

Bending, measuring and further bending stainless steel in one go

checks both thick and thin-walled tubes in the broadest range of materials and diameters. The system can be integrated into almost any bending tool and combined with almost all tube bending machines from Schwarze- Robitec. “The measuring accuracy from Springmatic is naturally equivalent to the accuracy of conventional external systems,” Schwarze-Robitec managing director Bert Zorn added. “Furthermore, users not only save up to nine tenths of the auxiliary processing times previously required; in individual item and prototype production, they additionally benefit from a noticeable material saving as almost every component is now also a useable bulk component. These advantages have an effect particularly in tube production for the automotive, machine and plant engineering and shipbuilding industries.” Schwarze-Robitec GmbH – Germany Email: sales@schwarze-robitec.com Website: www.schwarze-robitec.com different units of measurement, part shape and cleaning control options are also available. The main features of the latest generation of Sinico machines are: ease of use; performance; quick setup and automatic positioning of units; optimised cutting process; connection with LAN and WAN; self- diagnostics with built-in graphics; user info, maintenance data and functional diagrams viewable on PC; and the option of installing SPC (Statistical Process Control) and messenger (email/SMS) systems in case of machine alarm, as well as remote servicing with web cam. Sinico Machine Tool Manufacturing Srl – Italy

bend, measure and adjust in a single stage with the aid of Springmatic. Immediately after the bending of a tube, the new optical measuring system that Schwarze-Robitec is integrating into its bending tools records the rebound value, from which the CNC control of the tube bending machine calculates the required subsequent bending angle. Subsequent bending is carried out immediately afterwards – either fully automatically if desired or after clearance by the machine operator. “This integrated form of dimensional stability check and tube post-processing takes only a few seconds per work piece on average. This is contrasted with around three to five minutes required for measuring and adjusting in the conventional way,” Schwarze-Robitec plant manager Jürgen Korte reports. When developing the measuring system, the tube bending specialists from Cologne placed particular emphasis on a very broad range of applications: Springmatic reliably component, for standard applications or tailored to the customer’s specific needs. Sinico is specialised in the design and manufacture of automatic rotary transfer cut-off and end-finishing machines, suitable for producing medium and large series of metal parts from tubes, bars, coils, forgings and blanks. End-finishing operations commonly performed with chip-removing machine tools include facing, chamfering, centring, turning, drilling, threading, tapping, milling, grooving and splining, as well as shaping operations such as flaring, tapering, rolling, pressing, marking and knurling. Sinico machines can handle all metal materials (steel, stainless steel, aluminium, copper, brass, titanium, Inconel, etc), and all operations are carried out in one chucking. Various

THOSE who want to accurately bend steel or stainless steel tubes and tube systems must accept long auxiliary processing times for the generally unavoidable measuring and adjusting process. This is because the rebound behaviour of the materials can differ widely – even if the tubes come from a single batch. The production of prototypes and individual items is similarly time and labour-intensive. The Springmatic optical measuring system provides a remedy here: the new development from Schwarze-Robitec, which is integrated into the bending tool, measures the bent tubes directly while tensioned on the bending machine and immediately starts the required further bending process if desired or saves the required correction value for subsequent bends. Instead of removing the tube after the bending process, checking it on an external measuring system then retensioning it for subsequent bending, tube processing companies can THE products of Sinico Machine Tool Manufacturing, Italy, have a wide field of application and versatility, and have been instrumental in rapidly expanding Sinico’s market in many countries around the world. As a result, the company has secured over 1,500 orders, delivered to companies working in a range of different sectors, such as firms in the business of producing components for cars, bicycles, motorbikes, electrical motors, household appliances, power transmissions, hydraulics, pneumatics, pipe fittings, earth moving machinery, chains, tools, rods, nuts and bolts, bearings, dies, doors and windows, and furniture, in addition to contractors. In Sinico’s offices and workshop, single- or double-bar machines are designed, developed and produced, down to the very last mechanical

Optimising steel production capacities around the world

Fax: +39 0444 644857 Email: info@sinico.com Website: www.sinico.com

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M arch 2013