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Title: Machinability of hypereutectic cast Al–Si alloys processed by SSM processing technique
Authors: Sood P.K.
Sehgal R.
Dwivedi, Dheerendra Kumar
Published in: Sadhana - Academy Proceedings in Engineering Sciences
Abstract: Experimental investigation carried out on the machinability studies to determine the influence of semi-solid metal processing and modification on hypereutectic Al–20Si–0.5Mg–1.2Fe-based alloy produced by conventional cast and semi-solid metal processing technique (mechanical stirring) and modified with iron correctors (Be and Cd) has been presented in this paper. The alloys under investigation were prepared by controlling melt using an induction melting furnace. Stirring of semi-solid metal takes place at constant cooling conditions from liquidus temperature at a constant stirring speed of 400 rpm. To determine the machining performance characteristics an orthogonal array, signal-to-noise ratio and statistical tool analysis of variance were jointly used during experimentation. A CNC lathe was used to conduct experiments in dry condition and coated carbide inserts were used as tool inserts. Machining variables like cutting velocity, approaching angle, feed rate and depth of cut, which can be considered as process parameters, are taken into account. The combined effect of modification and semi-solid metal processing has a significant effect on the machining characteristics, which was concluded from study. The modified alloy processed by semi-solid metal processing technique exhibits better machinability conditions when compared with the conventional cast. The feed rate has more effect on machining behaviour. © 2017, Indian Academy of Sciences.
Citation: Sadhana - Academy Proceedings in Engineering Sciences (2017), 42(3): 365-378
Issue Date: 2017
Publisher: Springer India
Keywords: analysis of variance
beryllium and cadmium
CNC turning centre
hypereutectic Al–Si alloy
Taguchi method
ISSN: 2562499
Author Scopus IDs: 54407762400
Author Affiliations: Sood, P.K., Department of Mechanical Engineering, National Institute of Technology, Hamirpur, 177005, India
Sehgal, R., Department of Mechanical Engineering, National Institute of Technology, Hamirpur, 177005, India
Dwivedi, D.K., Department of Mechanical and Industrial Engineering, Indian Institute of Technology, Roorkee, 247667, India
Corresponding Author: Sood, P.K.; Department of Mechanical Engineering, National Institute of TechnologyIndia; email:
Appears in Collections:Journal Publications [ME]

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