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Investigation on tool wear during dry and wet machining of hardened mould steels

Zaghbani, Imed et Jomaa, Walid et Songmene, Victor et L. Boire, Louis-Philippe et Lehuy, Hoang. 2012. « Investigation on tool wear during dry and wet machining of hardened mould steels ». International journal of civil engineering and building materials, vol. 2, nº 3. p. 124-131.

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Résumé

The development of new melting processes for mold steels demands a great attention from steel manufacturers to improve the machinability of such steels. One of the important parameters that affect machinability is the tool wear. An insightful understanding of tool wear behavior can lead to better process economics, increased process stability, improved tool life and reduced tooling costs. The present paper attempted to study the tool wear mechanisms of a PVD-TiAlN coated carbide tool during face milling of two hardened mold steels in dry and wet conditions. The tested steels (P20-AIR MELT, P20-ESR and DIN 1.2711 ESR) were obtained using Air Melt and Electro-Slag Remelting (ESR) processes. The results show that although the tested steels have comparable hardness, the tool wear behavior is different regarding the cutting mode, melting processes and chemical composition of the tested steels. For the tested steels and conditions, the dry machining performs better than wet machining. The tool life is limited by the maximum flank wear mode during dry machining. Nevertheless, when wet milling is performed, the catastrophic tool wear is the failure mode that dominates which results in noticeable decrease of the tool life compared to dry milling.

Type de document: Article publié dans une revue, révisé par les pairs
Professeur:
Professeur
Songmene, Victor
Affiliation: Génie mécanique
Date de dépôt: 19 avr. 2017 20:02
Dernière modification: 14 sept. 2017 14:22
URI: http://espace2.etsmtl.ca/id/eprint/15082

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