Thermal Aspects in Deep Hole Drilling of Aluminium Cast Alloy Using Twist Drills and MQL

Biermann, D.1, a; Iovkov, I.1, b; Blum, H.2, c; Rademacher, A.2, d; Taebi, K.2, e; Suttmeier, F.T.3, f; Klein, N.3, g

Institut für Spanende Fertigung, Technische Universität Dortmund, Baroper Str. 303, 44227 Dortmund
Lehrstuhl für Wissenschaftliches Rechnen (LS X), Technische Universität Dortmund, Vogelpothsweg 87, 44227 Dortmund
Arbeitsgruppe Wissenschaftliches Rechnen, Universität Siegen, Walter-Flex-Str. 3, 57068 Siegen

a); b); c); d); e); f); g)


The deep hole drilling process with solid carbide twist drills is an efficient alternative to the classic single-lip deep hole drilling, due to the generally higher feed rates possible and the consequently higher productivity. Furthermore the minimum quantity lubrication (MQL) can be applied, in order to reduce the production costs and implement an environmentally friendly process. Because of the significantly reduced cooling performance when using MQL, a higher heat loading results for the tool and the workpiece. This paper presents the investigations of the temperature distribution in the workpiece and the heat balance of the deep hole drilling process.


Deep hole drilling, Twist drill, MQL, Heat input


Procedia CIRP, 3 (2012), doi: 10.1016/j.procir.2012.07.043