Open Access Open Access  Restricted Access Subscription or Fee Access

Effect of Cutting Parameters in Hard Turning on Chip Formation and Machined Surface

Shambhu Choubisa, B. P. Nandawana, M. A. Saloda, M. S. Khidiya

Abstract


Cost effectiveness, increasing demand, high production rates and reliability of the product have increased the potential of industrial application of hard turning technology during the past few years. Grinding operation for hard steel component reduces the machining sequence, the machining time and the specific cutting energy. Hard turning also shows effects like generation of high temperature, the formation of saw toothed chips. In this thesis, experimental investigation is conducted in order to study the chip transition using Scanning Electron Microscopy and chip micro-hardness were conducted to correlate the chip morphology, cutting forces using micro-hardness tester. The surface integrity of machines part is also investigated. This study focuses on surface and sub-surface defects and white layer formation. The machined surfaces are examined using SEM to study effect of different process parameters on the quality of the machined surface. Cutting forces were measured by lathe tool dynamometer and ANOVA test were performed to observe the effect of cutting parameters on cutting forces.

Keywords: AISI D2 steel, chip formation, cutting forces, hard turning, microstructure of machined surface ANOVA

Full Text:

PDF

References


(1) Molinari A., Musquar C., Sutter G. Adiabatic shear banding in high speed machining of Ti-6Al-4V: experiments and modelling, Int J Plast. 2002; 18: 443–59p.

(2) Sutter G. Chip geometries during high speed machining for orthogonal cutting conditions, Int J Mach Tools Manuf. 2005; 45: 719–726p.

(3) Horting C., Svendsen B. Simulation of chip formation during high speed cutting, J Mater Process Technol. 2007; 186: 66–7p.

(4) Komanduri R., Brown R.H. The mechanics of chip segmentation in machining, J Eng Ind. 1981; 103: 33–51p.

(5) Konig W. Machining hard materials with geometrically defined cutting edges-filed of applications and limitations, Ann CIRP. 1991; 39: 413–25p.

(6) Shaw M. The mechanism of chip formation with hard turning steel, Ann CIRP. 1998; 39: 77–82p.

(7) Recht R. Adynamic analysis of high speed machining, ASME Trans J Eng Ind. 1985; 107: 309–15p.

(8) Poulachon G., Moisan A., Jawahir I.S. Tool-wear mechanisms in hard turning with polycrystalline cubic boron nitride tools, Wear. 2001; 250: 576–86p.

(9) Rtarya G., Choudhary S.K. State of the art in hard turning, Int J Mach Tools Manuf. 2012; 53: 1–14p.

(10) Nakayama K. The formation of saw-toothed chip in metal cutting, Proceedings of International Conference on Production Engineering. Tokyo, Part 1, 1974, 572–7p.




DOI: https://doi.org/10.37628/ijmmp.v2i1.161

Refbacks

  • There are currently no refbacks.