Failure analysis of hot stamping die
Joana Prisco Pinheiro; Paula Fernanda da Silva Farina
Abstract
The need to reduce weight combined with increased resistance of automotive safety parts leads to an increase in the application of the hot stamping process.. The hot stamping die behavior knowledge is of great importance to optimize the process. In this way, the present work proposes the analysis of the predominant wear mechanisms of an end-of-life hot stamping die. The initial part of a failure analysis was carried out, with visual and microscopic analysis, hardness and residual stress measurements, preserving the die. It was found that the predominant failure mechanisms in the hot stamping die were adhesive, impact and abrasive wear. Furthermore, the cracks found in the die are associated not only to wear, but also to mechanical stress. Finally, due to the characteristics of the application, overtempering may occur in the die and, consequently, a decrease in the wear resistance of the die in such regions.
Keywords
Referências
1 Hossein K, Tekkaya AE. A review on hot stamping. Journal of Materials Processing Technology. 2010;210(15):2103-2118.
2 Mori KI, Bariani PF, Behrens BA, Brosius A, Bruschi S, Maeno T, et al. Hot stamping of ultra-high strength steel parts. CIRP Annals. 2017;66(2):755-777.
3 Li W, Zhang Z, Jia H, Ren M. The optimization of welding spots’ arrangement in A-pillar patchwork blank hot stamping. Metals. 2023;13(8):1409.
4 Boher C, Le Roux S, Penazzi L, Dessain C. Experimental investigation of the tribological behavior and wear mechanisms of tool steel grades in hot stamping of a high-strength boron steel. Wear. 2012;294-295:286-295.
5 Venema J, Matthews DTA, Hazrati J, Wörmann J, Van den Boogaard AH. Friction and wear mechanisms during hot stamping of AlSi coated press hardening steel. Wear. 2017;380-381:137-145.
6 Schwingenschlögl P, Niederhofer P, Merklein M. Investigation on basic friction and wear mechanisms within hot stamping considering the influence of tool steel and hardness. Wear. 2019;426-427:378-389.
7 Nowotny H, Rice S, Wayne S. Impact wear of a tool steel. Wear. 1982;81(1):175-181.
8 He B, Ying L, Li X, Hu P. Optimal design of longitudinal conformal cooling channels in hot stamping tools. Applied Thermal Engineering. 2016;106:1176-1189.
9 Chantzis D, Liu X, Politis DJ, El Fakir O, Chua TY, Shi Z, et al. Review on additive manufacturing of tooling for hot stamping. International Journal of Advanced Manufacturing Technology. 2020;109(1-2):87-107.
10 Abachi S, Akkök M, Gökler Mİ. Wear analysis of hot forging dies. Tribology International. 2010;43(1-2):467-473.
11 Summerville E, Venkatesan K, Subramanian C. Wear processes in hot forging press tools. Materials & Design. 1995;16(5):289-294.
12 Barrau O, Boher C, Vergne C, Rezai-Aria F, Gras R. Investigations of friction and wear mechanisms of hot forging tool steels. Karlstad University. 2002;1:81-94.
13 Gronostajski Z, Kaszuba M, Widomski P, Smolik J, Ziemba J, Hawryluk M. Analysis of wear mechanisms of hot forging tools protected with hybrid layers performed by nitriding and PVD coatings deposition. Wear. 2019;420- 421:269-280.
14 Dörrenberg Edelstahl GmbH. Data sheet WP7V [internet]. Engelskirchen; 2023 [cited 2026 Oct 3]. Available at: https://www.doerrenberg.de/
Submetido em:
09/09/2023
Aceito em:
27/02/2024
Facebook
Google+
Twitter
LinkedIn
Mendeley
StumbleUpon
CiteULike
Reddit
Email