RESULTS OF SEARCHING FOR INNOVATIVE SOLUTIONS TO INCREASE THE FORMABILITY OF THIN SHEETS IN THE DEEP DRAWING PROCESS OF VEHICLE COMPONENTS

1 HYRCZA-MICHALSKA Monika
Institution:
1 Silesian University of Technology, Faculty of Materials Engineering and Metallurgy, Gliwice, Poland, EU, monika.hyrcza-michalska@polsl.pl
Conference:
28th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 22nd - 24th 2019
Proceedings:
Proceedings 28th International Conference on Metallurgy and Materials
Pages:
397-401
ISBN:
978-80-87294-92-5
ISSN:
2694-9296
Published:
4th November 2019
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
45 views / 18 downloads
Abstract

The cold pressing of thin sheets is one of the dominant methods of manufacturing vehicle construction elements. These methods are constantly improving due to the production needs in an increasingly efficient way - economically and technologically effective. In addition, the modern user expects vehicles with eco-friendly features: low-emission, light, safe in operation, durable, corrosion-resistant, recyclable, etc. Car manufacturers are constantly looking for ways to meet these expectations. These expectations define the directions of following research on modern construction materials, e.g. advanced high strength steels (AHSS), multilayer and functional materials And the result of introducing production materials with new special properties, it creates numerous innovation needs in the field of their processing technology. In order to obtain very complicated and asymmetrical shapes of products, the liquid is used instead of rigid stamping tools (hydro-forming), metal materials are plasticized using partial heating (e.g. spinning with heating the area before the roll using a laser) or complete heating of the batch sheet (hot forming). The plates are deformed circumferentially on the instruments with a point tool whose movement path maps the shape of the single point incremental forming. Innovative hybrid solutions combining volumetric and shell forming, liquid treatment and hot forming, and the like are sought after. In this detailed work, the last of these hybrid technologies was analyzed, called quick plastic forming (QPF) with preforming. This technology is based on a new pre-forming process of deep drawing, on an innovative pressing tool with a unique system to regulate the time and pressure of the working liquid inside. The assumptions of technology have been presented. Requirements for the production of drawpieces from standard 5000 series aluminum alloys for the needs of the automotive industry, in relation to the capabilities of the analyzed technology, were compared.

Keywords: Deep drawing, formability of thin sheets, vehicle components, hydro-forming, hot forming
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