Comparative Study of some Machining Characteristics during Hard Turning of Alloy Steel with Untreated and Cryotreated Cermet Inserts

Abstract:

Enhanced tool life of cutting inserts are most suitable condition for higher productivity of a manufacturing industry. Several methods are found and employed for higher tool life of cutting inserts among which cryogenic treatment is considered as the most significant method but no adequate researches have been found concerning the impact of cryogenic treatment on cermet inserts especially in hard turning operation. Hence, in the current experimental investigation, the comparative assessment of various responses such as flank wear, crater wear, chip morphology, and chip compression ratio were carried out during machining of hardened steel with both untreated and cryo-treated cermet inserts under dry cutting condition. Wear on the rake faces and flank faces were studied using advanced optical microscope, while chip morphology was studied using SEM. The experimental result demonstrated that the uncoated deep cryotreated with tempered cermet insert delivered better results in comparison to other cermet inserts. Deep cryogenically treated with tempered insert was found to be more suitable during machining of hardened steel because of the enhancement of wear resistance, micro hardness and toughness.

• Periodical: Materials Science Forum (Volume 978)
• Pages: 64-76
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.978.64
• Online since: February 2020
• Authors: Anshuman Das*, S.K. Patel, B.B. Biswal, Aniket Santoshwar
• Keywords: Crater Wear, Cryo Treatment, Flank Wear, Hard Turning, Uncoated Cermet

References

[1] A. Özbek, A. Çiçek, M. Gülesin, O. Özbek, Investigation of the effects of cryogenic treatment applied at different holding times to cemented carbide inserts on tool wear, Int J Mach Tools Manuf. 86 (2014) 34 - 43.

DOI: 10.1016/j.ijmachtools.2014.06.007

[2] T. Kỳvak, U. Şeker, Effect of cryogenic treatment applied to M42 HSS drills on the machinability of Ti-6Al-4V alloy, Mater Tehnol. 49 (2015) 949-956.

DOI: 10.17222/mit.2014.283

[3] S. Akıncıoğlu, H. Gökkaya, İ. Uygur, The effects of cryogenic-treated carbide tools on tool wear and surface roughness of turning of Hastelloy C22 based on Taguchi method, Int J Adv Manuf Technol. 82 (2016) 303-314.

DOI: 10.1007/s00170-015-7356-z

[4] S. Akincioğlu, H. Gökkaya, İ. Uygur, A review of cryogenic treatment on cutting tools. Int J Adv Manuf Technol. 78 (9-12):1609–1627 (2015).

DOI: 10.1007/s00170-014-6755-x

[5] R.G. Deshpande, Machining C-45 Steel With CryogenicallyTreated and Microwave Irradiated TungstenCarbide Cutting Tool Inserts. International Journal of Innovative Research in Science, Engineering and Technology. 339-345 (2015).

[6] J. Singh, P. Singh, H. Singh, Flank wear evaluation of cryogenically treated ISO K313 WC/CO inserts in dry CNC turning of 2507 super-duplex stainless steel. Proceedings of 18th IRF International Conference. 78-85 (2015).

[7] M. Strano, P. Albertelli, E. Chiappini, S. Tirelli, Wear behaviour of PVD coated and cryogenically treated tools for Ti-6Al-4V turning. Int J Mater Form. 8:601–611. (2015).

DOI: 10.1007/s12289-014-1215-6