dc.contributor.advisor |
Gamage JR |
|
dc.contributor.advisor |
Karunathilake HP |
|
dc.contributor.author |
Fernando WLR |
|
dc.date.accessioned |
2021 |
|
dc.date.available |
2021 |
|
dc.date.issued |
2021 |
|
dc.identifier.citation |
Fernando, W.L.R. (2021). Optimising the operational parameters and conditions to enhance the environmental sustainability of turning operation [Master's theses, University of Moratuwa]. Institutional Repository University of Moratuwa. http://dl.li http://dl.lib.uom.lk/handle/123/21347 |
|
dc.identifier.uri |
http://dl.lib.uom.lk/handle/123/21347 |
|
dc.description.abstract |
The manufacturing sector accounts for nearly 40% and 25% of global energy and resources
consumption respectively. The die and mould manufacturing (DMM) sector, contributes
largely to the energy and resource consumption in emerging economies. Turning is a popular
and essential mode of machining within this sector. Furthermore, operational energy usage
and metalworking fluid (MWF) consumption of turning have been identified as the key
sources of environmental impacts in this process. However, there is a lack of evidence on
analysing environmental impacts of lathe operations in the DMM sector compared to milling
operation. Therefore, the purpose of this study is to identify and analyse the life cycle
environmental impacts of the commercial turning operation. A series of case studies was
conducted in DMM centres to explore the state-of-the-art industrial turning operation. Then, a
set of experiments was designed using the Taguchi L
9
method, considering the mostly used
workpiece material, cooling condition and cutting parameters. Experiments were performed
to evaluate the energy consumption, metalworking fluid (MWF) consumption, surface
roughness and material removal rate during turning of AISI P20 with both wet and dry
machining. A life cycle assessment (LCA) was performed using SimaPro LCA software with
Ecoinvent database version 8.5 to assess the environmental performance of turning. A multiresponse
optimisation was performed using Grey-based Taguchi method to identify the
optimum operating conditions. The results show that turning with wet machining yields better
machining and environmental performances compared to dry machining. The largest portion
of the energy is consumed for non-productive operations. The LCA results reveals electrical
energy as the highest contributor under most of the impact categories. The workpiece material,
AISI P20 and cutting insert material show significant contributions to aquatic ecosystems and
resource consumption. However, the contribution of MWF on the midpoint impact categories
is negligible. Further, the research presents optimum turning parameters to obtain better
machining performances while maintaining lower environmental footprint in the context of
turning of AISI P20 with wet machining. |
en_US |
dc.language.iso |
en |
en_US |
dc.subject |
SUSTAINABLE MACHINING |
en_US |
dc.subject |
TURNING OPERATION |
en_US |
dc.subject |
LIFE CYCLE ASSESSMENT |
en_US |
dc.subject |
ENVIRONMENTAL IMPACT |
en_US |
dc.subject |
MECHANICAL ENGINEERING – Dissertation |
en_US |
dc.title |
Optimising the operational parameters and conditions to enhance the environmental sustainability of turning operation |
en_US |
dc.type |
Thesis-Abstract |
en_US |
dc.identifier.faculty |
Engineering |
en_US |
dc.identifier.degree |
MSc In Mechanical engineering by research |
en_US |
dc.identifier.department |
Department Mechanical Engineering |
en_US |
dc.date.accept |
2021 |
|
dc.identifier.accno |
TH4853 |
en_US |