Investigation into Effect of Cutting Conditions on Surface Roughness while Dry Machining Al-11%Si and Al-11%Si-1% Bi Die Casting Alloy

Abstract:

In this study, an experimental investigation was conducted to determine the effects of cutting speeds and feed rates on surface roughness in turning of the Al %11Si and Al-11%Si-1% Bi die cast alloys. Experimental trials carried out on a CNC machine using coated carbide inserts (PVD). Three different cutting speeds, 70, 130 and 250 m/min and three feed rates 0.05, 0.1 and 0.15 mm/rev were used with a 0.15 mm constant depth of cut for all experiments. Additionally scanning electron microscope (SEM) was employed to clarify the different types of silicon morphology. Results revealed that surface roughness increased with increasing feed rate from 0.05 to 0.15 mm/rev and decreased with increasing cutting speed from 70 to 250 m/min. The result showed that workpiece containing Bi had the best surface roughness with lamellar silicon shape in comparison with aluminium-silicon with flake-silicon shape.

• Periodical: Advanced Materials Research (Volume 1119)
• Pages: 617-621
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1119.617
• Online since: July 2015
• Authors: Mohsen Marani Barzani*, Ahmed A.D. Sarhan, Saeed Farahani, Ramesh Singh
• Keywords: Bismuth, Microstructure, Silicon Morphology, Surface Roughness, Turning

References

[1] H. R. E., J. R. Alique, A. Alique, J. Hernández and R. Uribe-Etxebarria: Embedded fuzzy-control system for machining processes: Results of a case study, Computers in Industry 50, no. 3 (2003): 353-366.

DOI: 10.1016/s0166-3615(03)00022-8

[2] A. A. D. Sarhan, M. Sayuti and M. Hamdi: Reduction of power and lubricant oil consumption in milling process using a new SiO2 nanolubrication system, International Journal of Advanced Manufacturing Technology, November 2012, Vol. 63, Issue 5-8, pp.505-512.

DOI: 10.1007/s00170-012-3940-7

[3] M. Marani Barzani, E. Zalnezhad, A.A. Sarhan, S. Farahany and S. Ramesh: Fuzzy Logic Based Model for Predicting Surface Roughness of Machined Al-Si-Cu-Fe Die Casting Alloy Using Different Additives-Turning, Measurement,  (2015), pp.150-161.

DOI: 10.1016/j.measurement.2014.10.003

[4] M. Marani Barzani, N. M. Yusof, A. AkhavanFarid, S. Farahany and A. Davoudinejad: Effects of Cutting Condition on Surface Roughness when Turning Untreated and Sb-Treated Al-11% Si Alloys Using PVD Coated Tools, Applied Mechanics and Materials 315 (2013).

DOI: 10.4028/www.scientific.net/amm.315.413

[5] R. Pradeep: Cast aluminum-matrix composites for automotive applications, JOM 43, no. 4 (1991), pp.10-15.

DOI: 10.1007/bf03220538

[6] M. Marani Barzani, S. Farahany, N. Mohd Yusof and A. Ourdjini: The influence of bismuth, antimony and strontium on microstructure, thermal and machinability of aluminium–silicon alloy, J. Mater. Manuf. Process 28 (2013), p.1184–1190.

DOI: 10.1080/10426914.2013.792425

[7] J. Grum and M. Kisin, Mach. Tools Manuf. (2005), p.1.

[8] S. Yoshihara and M. Hirano: Abstracts of the 1997 Autumn Meeting of the Japan Inst, Light Metals (1999) p.179–180.

[9] M. MaraniBarzani, A. A. D. Sarhan, S. Farahany, R. Singh and I. Maher: Machinability of Al-Si-Cu cast alloy containing bismuth and antimony when dry turning using coated carbide insert, Measurement (2014).

DOI: 10.1016/j.measurement.2014.10.030

[10] M. Marani Barzani, N. MohdYusof, S. Farahany and A. Ourdjini: Effect of Machining Parameters on Cutting Force when Turning Untreated and Sb-Treated Al-11% Si-1. 8% Cu Alloys Using PVD Coated Tools, Applied Mechanics and Materials 234 (2012).

DOI: 10.4028/www.scientific.net/amm.234.74

[11] A. Davoudinejad, S. Alizadeh Ashrafi and M. Marani Barzani: Investigation into Different Tool Coating performance While Turning Al6061, Advanced Materials Research Vol. 566 (2012), p. p.443.

DOI: 10.4028/www.scientific.net/amr.566.443

[12] S. Farahany, A. ourdjini and M. H. Idris, The usage of computer-aided cooling curve thermal analysis to optimize eutectic refiner and modifier in Al-Si alloys, Journal of 385 Thermal Analysis and Calorimetry 2012, 109 (1), p.105–111.

DOI: 10.1007/s10973-011-1708-1

[13] N. Tomac and K. Tonnessen: Machinability of particulate aluminium matrix composites, Annals of the CIRP 41 (1), (1998), p.55–58.

DOI: 10.1016/s0007-8506(07)61151-2

[14] C. Ibrahim, M. turker and U. Seker: Evaluation of tool wear when machining SiC reinforced Al-2014 alloy matrix composites, Materials and Design 25(2004), p.251–255.

DOI: 10.1016/j.matdes.2003.09.019

[15] K. Masatsugu, T. Yakou, T. Sasaki and Y. Nagatsuma: Effect of Si content on turning machinability of Al-Si binary alloy castings, Materials transactions 49, no. 3 (2008), pp.587-592.

DOI: 10.2320/matertrans.l-mra2007886

[16] W. A. Dean: Effect of alloying elements and impurities on properties. In Aluminum; Van Horn, K.R. Ed.; 1967; 395200–226.