TPT January 2016

Technology News

Tailor drawn technique AGAINST the background of increasing requirements for lower weights in the automotive industry, the tailor drawn tubes (TDT) technique has become more important. Existing methods for the production of these special tubes can only be applied experimentally and are, therefore, labour intensive. can now be implemented in the tube production industry. When developing the TDT tube drawing technology, Bültmann attached greatest importance to the possibility of using technological components that have already been used for other applications.

Straight tubes

ABSOLUTE straightness is one of the concise quality criteria in the production of round bars and pipes. Bendcheck – the precision laser measuring system from Zumbach – monitors bending continuously without missing any sections directly within the production process. This replaces the ODAC ® laser measuring heads used currently to manually spot test with a non-contact online test for bending. Apart from the obvious gain in quality, the manufacturer also saves considerable time through the use of the online date check. Bendcheck can be used for synchronous real time scanning in the production process, and quality assurance directly after the straightening process, without time consuming and laborious checks with manual tools. Zumbach Electronic AG – Switzerland Website: www.zumbach.com

In order to achieve very narrow tolerances, especially in the transition zone of wall thickness, and to ensure the necessary process reliability at the same time, a closed control circuit is indispensable. This process control is assured by combining sensible and very dynamically reacting drive systems and specially designed measuring devices and process software. You can visit Bültmann GmbH at Stand 6E39 at Tube Düsseldorf 2016.

According to Bültmann GmbH, Germany, the increased demands for narrow tolerances can only be fulfilled by current technical possibilities with difficulty. Furthermore it is not possible to achieve a ‘steady’ process reliability based on current technology. Due to the numerous influencing parameters in the TDT drawing technology, the tube drawing process currently used will soon reach its technical limits. Intensive development work and positive practical experience enables Bültmann to assist customers in combining theory and practice. Bültmann’s patented TDT Production System, in conjunction with the company’s draw bench technology,

Bültmann GmbH – Germany Fax: +49 2394 18171 Email: info@bueltmann.com Website: www.bueltmann.com

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