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https://doi.org/10.17559/TV-20180809113703

Influence of Roller Ball Tool in Single Point Incremental Forming of Polymers

Karthik Thangavel ; Department of Mechanical Engineering, PSG College of Technology, Peelamedu, Coimbatore – 641 004, India
Rajenthirakumar Duraiswamy ; Department of Mechanical Engineering, PSG College of Technology, Peelamedu, Coimbatore – 641 004, India
Srinivasan Nagarajan orcid id orcid.org/0000-0002-3148-7419 ; Department of Mechanical Engineering, PSG College of Technology, Peelamedu, Coimbatore – 641 004, India
Sridhar Ramasamy ; Department of Mechanical Engineering, PSG College of Technology, Peelamedu, Coimbatore – 641 004, India


Puni tekst: engleski pdf 1.819 Kb

str. 171-176

preuzimanja: 753

citiraj


Sažetak

Polymers defend the metals in making complex geometries because of their strength to weight ratio. Utilizing the conventional process has become a challenge in manufacturing customized products. Increase in demand of tailored products in minimum quantities with preferred quality creates the need for developing new techniques. Incremental forming process is an emerging flexible technology that can obtain pre-defined profiles through deformation of metals and polymers in desired thickness at a reasonable cost. In this work, single point incremental forming (SPIF) of different polymer materials is done using roller ball tool and modest fixture system. Materials such as polyvinyl chloride (PVC), polypropylene (PP), polycarbonate (PC), high density poly ethylene (HDPE) are considered for this investigation due to high applications in automobile and biomedical area. The experiments are designed to analyse the influence of variable process parameters such as tool diameter, step size, spindle speed and sheet thickness. The analysis is carried out by characterizing the formability with depth of failure, thickness distribution, surface roughness and microstructure evaluation. Based on the result, the spindle speed and sheet thickness show high response in formability, surface roughness and depth of failure. The tool diameter has a significant effect on the surface roughness. PVC shows the springback resistance and cracks are observed in the circumferential route on the transition area among the bottom and side wall portion.

Ključne riječi

failure analysis; formability; microstructure; roller ball tool; thickness distribution

Hrčak ID:

217104

URI

https://hrcak.srce.hr/217104

Datum izdavanja:

16.2.2019.

Posjeta: 1.485 *