Prediction and investigation of fracture initiation in warm forging of martensitic stainless steel with aid of fem simulation

by

Prediction and investigation of fracture initiation in warm forging of martensitic stainless steel with aid of fem simulation

Łukasz Lisiecki , Piotr Skubisz, Jarosław Karwan

AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Mickiewicza Av. 30, 30-059, Kraków, Poland.

DOI:

https://doi.org/10.7494/cmms.2015.2.0538

Abstract:

Warm forging brings together advantages of hot (e.g. forging load reduction) and cold (e.g. no scale) metal forming operations. However, due to decreasing the process temperature, the risk of fracture occurrence increases. In this paper the risk of cracking initiation during warm forging of surgical forceps made of martensitic stainless steel is estimated. The investigations assume the analysis of the fracture initiation point in the component during forging and attempt to define the critical value of process parameters by means of laboratory tests and FEM numerical simulation.

Cite as:

Lisiecki , Ł., Skubisz, P., & Karwan, J. (2015). Prediction and investigation of fracture initiation in warm forging of martensitic stainless steel with aid of fem simulation. Computer Methods in Materials Science, 15(2), 346-352. https://doi.org/10.7494/cmms.2015.2.0538

Article (PDF):

Keywords:

Martensitic stainless steel, Warm forging, Fracture criteria, Workability

Publication dates:

Received: 31.10.2014, accepted: 23.11.2014, published:

Publication type:

Original scientific paper

References:

Andrade Pires, F.M., Cesar de Sa, J.M.A., Costa Sousa, L., Natal Jorge, R.M., 2003, Numerical modelling of ductile plastic damage in bulk metal forming, International Journal of Mechanical Sciences, 45, 273-294.

Brnic, J., Turkalj, G., Canadija, M., Lanc, D., Krscanski, S., 2011, Martensitic stainless steel AISI 420-mechanical properties, creep and fracture toughness, Mech Time- Depend Mater, 15, 341-352.

Byrer, T.G., Semiatin, S.L., Vollmer, D.C., 1985, Forging Handbook. Forging Industry Association. American Society of Metals, Cleveland, OH.

Gouveia, B.P.P.A., Rodrigues, J.M.C., Martins, P.A.F., 1996, Fracture criteria in bulk metal forming, International Journal of Mechanical Sciences, 38, 361-372.

Hütter, G., Linse, T., Mühlich, U., Kuna, M., 2013, Simulation of ductile crack initiation and propagation by means of a non-local Gurson-model, International Journal of Sol- id and Structures, 50, 662-671. Nasery Isfahany, A., Saghafian, H., Borhani, G., 2011, The effect of heat treatment on mechanical properties and corrosion behavior of AISI420 martensitic stainless steel, Journal of Alloys and Compounds, 509, 3931- 3936.

Samolczyk, J., Jóźwiak, K., Kachlicki, T., 2007, Martenzytyczne stale odporne na korozję poddane obróbce plastycznej na ciepło, Obróbka Plastyczna Metali, 18, 23-32.

Skubisz, P., Krawczyk, J., Sińczak, J., 2012, Tool life enhance- ment in warm forging of CV joint with utilization of the C N divided flow method, Proceedings of the 14th Interna- C tional Conference on Metal Forming 2012, eds.: Kusiak J., Majta J., Szeliga D., Steel Research International, L spec. ed., 235- 238.