Application of the design of experiments and statistical hypothesis to reduce defects in the flange of the steel plate process

Application of the design of experiments and statistical hypothesis to reduce defects in the flange of the steel plate process

Hanna Sadłowska1, Piotr Wójcik2

1Warsaw University of Technology, Institute of Manufacturing Technologies, Warsaw, Poland.

2Faurecia Grójec R&D Center S.A.

DOI:

https://doi.org/10.7494/cmms.2022.3.0792

Abstract:

The paper presents a discussion on the occurrence of defects in the circumferential flange of steel plate. The numerous flange face defects have been analysed. The types of defects have been selected and categorized using an experimental planning ,procedure involving 600 samples for 24 different process variants, considering variables such as material, hole diameter, tool ,size and tool position. The analysis of experimental results enabled to determine of the optimal values of process parameters to minimize the occurrence of defects. Furthermore, the influence of individual parameters on the quality of the flange surface has been carried out to obtain the process parameters’ impact using statistical hypotheses. As a result, it was possible to develop rules which will be helpful in the design process, especially important when changing the material to be processed.

Cite as:

Sadłowska, H., & Wójcik, P. (2022). Application of the design of experiments and statistical hypothesis to reduce defects in the flange of the steel plate process. Computer Methods in Materials Science, 22(3), pages. https://doi.org/10.7494/cmms.2022.3.0792

Article (PDF):

Key words:

Laser cutting, Flanging, Fracture, Statistical hypotheses

References:

Bober, M. (2017). Badania wpływu głównych parametrów napawania plazmowego na geometrię napoin w oparciu o metody planowania eksperymentu. Przegląd Spawalnictwa, 89(4), 5–9.

Grzegorzewski, P., & Kochański, A. (2019). Data and modelling in industrial manufacturing. In: P. Grzegorzewski, A. Kochanski, J. Kacprzyk (eds.), Soft Modelling in Industrial Manufacturing (pp. 3–13), Springer Cham, “Studies in Systems, Decision and Control”. https://doi.org/10.1007/978-3-030-03201-2_1.

Gontarz, A., & Winiarski, G. (2015). Numerical and experimental study of producing flanges on hollow parts by extrusion with a movable sleeve. Archives of Metallurgy and Materials, 60(3), 1917–1921. https://www.doi.org/10.1515/amm-2015-0326.

Julian, M.N., & Gupta, M.C. (2020). Reduction in heat affected zone and recast layer in laser materials processing using a photon sieve lens. Optics and Lasers in Engineering, 126, 105911. https://doi.org/10.1016/j.optlaseng.2019.105911.

Moneke, M., & Groche, P. (2018). End flare of profiles with multiple bending zones. Procedia Manufacturing, 15, 743–750. https://doi.org/10.1016/j.promfg.2018.07.313.

Samołyk, G. (2012). Orbital forging of a sleeve-type part with a simultaneous flanging. In: K. Mori, M. Pietrzyk, J. Kusiak, J. Majta, P. Hartley, J. Lin (eds.), Steel Research International, Special Edition: 14th International Conference Metal Forming (pp. 175–178). Publishing Company Wiley.

Sheng, P.S., & Joshi, V.S. (1995). Analysis of heat-affected zone formation for laser cutting of stainless steel. Journal of Materials Processing Technology, 53(3–4), 879–892. https://doi.org/10.1016/0924-0136(94)01761-O.

Wójcik, P. (2022). Analiza warunków pękania w procesie obwodowego wywijania otworu [Bachelor thesis], Warsaw University of Technology.