Effectiveness of synthetic coolant at 0°C on machining of SS304 with PVD coated TiCN tool to evaluate and compare tool wear and surface finish with conventional machining method

ABSTRACT

The work-hardening and low thermal conductivity characteristics of SS304 had always been a challenge to machine it easily with better tool life and surface finish. The type of coolant, its temperature and surface coated inserts plays a pivotal role in machining the hard materials. A number of experiments were performed with a TiCN and tungsten carbide inserts in combination with soluble/synthetic coolant at ambient temperature and at 0^oC TiCN-coated cemented carbide insert with synthetic coolant at 0°C is recommended for machining as per the results obtained through this research work. It was found that TiCN-coated inserts used for machining SS304 with synthetic coolant at 0°C provide better tool life, less tool wear, improved surface finish and low heat generation. The tool life was enhanced approximately by 75%, 20% reduction in maximum temperature generation and 50% improvement in surface finish of workpiece.

GRAPHICAL ABSTRACT

KEYWORDS:

• Synthetic coolant
• TiCN inserts
• Surface topography
• heat generation
• surface roughness
• tool wear
• coolant temperature
• tool life

Acknowledgements

The authors thank VJTI, Mumbai and IIT Bombay for providing the infrastructural and testing assistance in completing in research work.

Disclosure statement

No potential conflict of interest was reported by the author(s).