Effect of minimum quantity lubrication during micro-machining

Micro-machining has become one of the most successful and latest developments in precision engineering. There are many types of micro-machining in the manufacturing industries, and the main focus in this project will be on micro-turning. During machining operation, heat and friction often generate b...

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Main Author: Chen, Lixin
Other Authors: School of Mechanical and Aerospace Engineering
Format: Final Year Project
Language:English
Published: 2011
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Online Access:http://hdl.handle.net/10356/45242
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Institution: Nanyang Technological University
Language: English
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spelling sg-ntu-dr.10356-452422023-03-04T19:10:08Z Effect of minimum quantity lubrication during micro-machining Chen, Lixin School of Mechanical and Aerospace Engineering Precision Engineering and Nanotechnology Centre Jaspreet Singh Dhupia DRNTU::Engineering::Mechanical engineering::Machine shop and drawings Micro-machining has become one of the most successful and latest developments in precision engineering. There are many types of micro-machining in the manufacturing industries, and the main focus in this project will be on micro-turning. During machining operation, heat and friction often generate between tools and chip in the cutting area, resulting in poor machining performance. Micro-machining operation is thus often more efficient with the use of lubrication or coolant. However, in the machining industries, coolants and lubricants are used in high quantities to reduce the temperature & friction at the cutting area. As a result, coolant in wet machining operations is a crucial economic issue. Therefore the interest has been switch to another alternative, machining with Minimum Quantity Lubricant (MQL), is gaining acceptance as a cost-saving and environmentally friendly option in place of some wet machining processes. Minimum Quantity Lubricant is actually a misnomer, as it does not refer to an optimal minimal quantity of lubricant. This is a standard term applied to low lubrication flow rate where almost 80% of benefit of flooded lubricant condition may be achieved. Under such condition the flow rate of lubricant is usually kept at few millimeters per hour rather than few liters per hour. This report presents a total of 48 micro-turning cutting operations based on Design of Experiment (DOE) methodology, conducted on 6 sets of wet cutting operation and 2 sets of dry condition cutting operation. The machining parameters varied in these experiments are the spindle velocity, feed rate and depth of cut. The aim of this experiment is to investigate the effect of Minimum Quantity Lubricant (MQL) on surface quality and the cutting forces, and predicting the optimum value for surface ii quality using machining parameters and amount of Minimum Quantity Lubricant (MQL). Bachelor of Engineering (Mechanical Engineering) 2011-06-10T03:58:34Z 2011-06-10T03:58:34Z 2011 2011 Final Year Project (FYP) http://hdl.handle.net/10356/45242 en Nanyang Technological University 72 p. application/pdf
institution Nanyang Technological University
building NTU Library
continent Asia
country Singapore
Singapore
content_provider NTU Library
collection DR-NTU
language English
topic DRNTU::Engineering::Mechanical engineering::Machine shop and drawings
spellingShingle DRNTU::Engineering::Mechanical engineering::Machine shop and drawings
Chen, Lixin
Effect of minimum quantity lubrication during micro-machining
description Micro-machining has become one of the most successful and latest developments in precision engineering. There are many types of micro-machining in the manufacturing industries, and the main focus in this project will be on micro-turning. During machining operation, heat and friction often generate between tools and chip in the cutting area, resulting in poor machining performance. Micro-machining operation is thus often more efficient with the use of lubrication or coolant. However, in the machining industries, coolants and lubricants are used in high quantities to reduce the temperature & friction at the cutting area. As a result, coolant in wet machining operations is a crucial economic issue. Therefore the interest has been switch to another alternative, machining with Minimum Quantity Lubricant (MQL), is gaining acceptance as a cost-saving and environmentally friendly option in place of some wet machining processes. Minimum Quantity Lubricant is actually a misnomer, as it does not refer to an optimal minimal quantity of lubricant. This is a standard term applied to low lubrication flow rate where almost 80% of benefit of flooded lubricant condition may be achieved. Under such condition the flow rate of lubricant is usually kept at few millimeters per hour rather than few liters per hour. This report presents a total of 48 micro-turning cutting operations based on Design of Experiment (DOE) methodology, conducted on 6 sets of wet cutting operation and 2 sets of dry condition cutting operation. The machining parameters varied in these experiments are the spindle velocity, feed rate and depth of cut. The aim of this experiment is to investigate the effect of Minimum Quantity Lubricant (MQL) on surface quality and the cutting forces, and predicting the optimum value for surface ii quality using machining parameters and amount of Minimum Quantity Lubricant (MQL).
author2 School of Mechanical and Aerospace Engineering
author_facet School of Mechanical and Aerospace Engineering
Chen, Lixin
format Final Year Project
author Chen, Lixin
author_sort Chen, Lixin
title Effect of minimum quantity lubrication during micro-machining
title_short Effect of minimum quantity lubrication during micro-machining
title_full Effect of minimum quantity lubrication during micro-machining
title_fullStr Effect of minimum quantity lubrication during micro-machining
title_full_unstemmed Effect of minimum quantity lubrication during micro-machining
title_sort effect of minimum quantity lubrication during micro-machining
publishDate 2011
url http://hdl.handle.net/10356/45242
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