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Analysis of fracture resistance of tool steels by means of acoustic emission
Martínez González, Eva; Picas Anfruns, Ingrid; Casellas Padró, Daniel; Romeu Garbí, Jordi
Universitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica; Universitat Politècnica de Catalunya. PROCOMAME - Processos de Conformació de Materials Metàl·lics; Universitat Politècnica de Catalunya. GRECEAM - Grup de recerca en contaminació per emissió acústica i en Mecànica
The automotive manufacturers currently use advanced high-strength steels (AHSS) to produce lightweight vehicles with increased safety performance. While showing excellent strengthto-weight ratios, AHSS have several limitations due to the high loads required in cold forming and cutting processes, which lead to accelerated wear and premature fracture of tools. Thus, new tool materials with improved mechanical behavior ought to be developed with regard to the tool failure mechanisms. The aim of this work is to shed light on the fracture mechanisms acting in tools (i.e. crack nucleation and propagation) applying the acoustic emission (AE) technique. Bending tests using two different tool steels were monitored in order to establish a relationship between AE signals and fracture events.
Peer Reviewed
Àrees temàtiques de la UPC::Enginyeria dels materials
Acoustic emission
Enginyeria acústica
Attribution-NonCommercial-NoDerivs 3.0 Spain

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