Title: Thermomechanical tool load in the machining of spheroidal cast iron – aluminium compounds

Authors: B. Denkena, L. De Leon, A. Lucas, R. Meyer

Addresses: IFW – Institute of Production Engineering and Machine Tools, Hannover Centre for Production Technology (PZH), Leibniz Universitat Hannover, An der Universitat 2, 30823 Garbsen, Germany. ' IFW – Institute of Production Engineering and Machine Tools, Hannover Centre for Production Technology (PZH), Leibniz Universitat Hannover, An der Universitat 2, 30823 Garbsen, Germany. ' IFW – Institute of Production Engineering and Machine Tools, Hannover Centre for Production Technology (PZH), Leibniz Universitat Hannover, An der Universitat 2, 30823 Garbsen, Germany. ' IFW – Institute of Production Engineering and Machine Tools, Hannover Centre for Production Technology (PZH), Leibniz Universitat Hannover, An der Universitat 2, 30823 Garbsen, Germany

Abstract: There is an increasing use of parallel compounds in the industry in which the compound has to be machined within one cut. The machinability of these compounds differs from that of the homogenous separate materials. In this paper, machining tests with compounds out of hard and soft materials (spheroidal cast iron and aluminium) are presented. The mechanical and thermal load on the tool cutting edge and its wear behaviour are examined regarding their dependency on the cutting parameters and the material ratio. The results show that the tool life decreases considerably with an increasing proportion of hard material in a compound. Furthermore, the tool wear limit is reached faster when the cut is performed in the direction from the hard into the soft material. The cutting direction also influences the process forces. In order to minimise the load occurring on the tool, the cut should be performed in the direction from the soft into the hard material.

Keywords: thermomechanical tool loads; aluminium compounds; milling; cast iron; cutting tool loads; tool wear; machinability; tool life; hard materials; soft materials.

DOI: 10.1504/IJMMM.2011.040851

International Journal of Machining and Machinability of Materials, 2011 Vol.10 No.1/2, pp.1 - 17

Available online: 26 Jun 2011 *

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