Investigation of Flow Behavior in Minimum Quantity Lubrication Nozzle for End Milling Processes

Investigation of Flow Behavior in Minimum Quantity Lubrication Nozzle for End Milling Processes

Minimum quantity lubrication (MQL) is a sustainable manufacturing technique that has replaced conventional flooded lubrication methods and dry machining. In the MQL technique, the lubricant is sprayed onto the friction surfaces through nozzles through small pneumatically-operated pumps. This paper p...

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Main Authors: Najiha, M. S., M. M., Rahman, A. R., Yusoff, K., Kadirgama
Format: Article
Language:English
Published: Universiti Malaysia Pahang 2012
Subjects:
TJ Mechanical engineering and machinery
TA Engineering (General). Civil engineering (General)
Online Access:http://umpir.ump.edu.my/id/eprint/3502/
http://umpir.ump.edu.my/id/eprint/3502/
http://umpir.ump.edu.my/id/eprint/3502/1/8_Najiha_et_al.pdf
id ump-3502
recordtype eprints
spelling ump-35022018-10-17T03:36:35Z http://umpir.ump.edu.my/id/eprint/3502/ Investigation of Flow Behavior in Minimum Quantity Lubrication Nozzle for End Milling Processes Najiha, M. S. M. M., Rahman A. R., Yusoff K., Kadirgama TJ Mechanical engineering and machinery TA Engineering (General). Civil engineering (General) Minimum quantity lubrication (MQL) is a sustainable manufacturing technique that has replaced conventional flooded lubrication methods and dry machining. In the MQL technique, the lubricant is sprayed onto the friction surfaces through nozzles through small pneumatically-operated pumps. This paper presents an investigation into the flow behavior of the lubricant and air mixture under certain pressures at the tip of a nozzle specially designed for MQL. The nozzle used is an MQL stainless steel nozzle, 6.35 mm in diameter. Computational fluid dynamics is used to determine the flow pattern at the tip of the nozzle where the lubricant and compressed air are mixed to form a mist. The lubricant volume flow is approximately 0.08 ml/cycle of the pump. A transient, pressure-based, three- dimensional analysis is performed with a viscous, realizable k-İ model. The results are obtained in the form of vector plots and flow fields. The flow mixing at the tip of the nozzle is wholly shown through the flow fields and vector plots. This study provides an insight into the flow distribution at the tip of the nozzle for a certain pressure to aid modifications in the design of the nozzle for future MQL studies. It attainable aids to determine the correct pressure for the air jet at the nozzle tip. Universiti Malaysia Pahang 2012 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/3502/1/8_Najiha_et_al.pdf Najiha, M. S. and M. M., Rahman and A. R., Yusoff and K., Kadirgama (2012) Investigation of Flow Behavior in Minimum Quantity Lubrication Nozzle for End Milling Processes. International Journal of Automotive and Mechanical Engineering (IJAME), 6 (Jul. pp. 768-776. ISSN 2229-8649 (Print); 2180-1606 (Online) http://ijame.ump.edu.my/images/Volume%206/8%20Najiha%20et%20al.pdf
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TJ Mechanical engineering and machinery
TA Engineering (General). Civil engineering (General)
spellingShingle TJ Mechanical engineering and machinery
TA Engineering (General). Civil engineering (General)
Najiha, M. S.
M. M., Rahman
A. R., Yusoff
K., Kadirgama
Investigation of Flow Behavior in Minimum Quantity Lubrication Nozzle for End Milling Processes
description Minimum quantity lubrication (MQL) is a sustainable manufacturing technique that has replaced conventional flooded lubrication methods and dry machining. In the MQL technique, the lubricant is sprayed onto the friction surfaces through nozzles through small pneumatically-operated pumps. This paper presents an investigation into the flow behavior of the lubricant and air mixture under certain pressures at the tip of a nozzle specially designed for MQL. The nozzle used is an MQL stainless steel nozzle, 6.35 mm in diameter. Computational fluid dynamics is used to determine the flow pattern at the tip of the nozzle where the lubricant and compressed air are mixed to form a mist. The lubricant volume flow is approximately 0.08 ml/cycle of the pump. A transient, pressure-based, three- dimensional analysis is performed with a viscous, realizable k-İ model. The results are obtained in the form of vector plots and flow fields. The flow mixing at the tip of the nozzle is wholly shown through the flow fields and vector plots. This study provides an insight into the flow distribution at the tip of the nozzle for a certain pressure to aid modifications in the design of the nozzle for future MQL studies. It attainable aids to determine the correct pressure for the air jet at the nozzle tip.
format Article
author Najiha, M. S.
M. M., Rahman
A. R., Yusoff
K., Kadirgama
author_facet Najiha, M. S.
M. M., Rahman
A. R., Yusoff
K., Kadirgama
author_sort Najiha, M. S.
title Investigation of Flow Behavior in Minimum Quantity Lubrication Nozzle for End Milling Processes
title_short Investigation of Flow Behavior in Minimum Quantity Lubrication Nozzle for End Milling Processes
title_full Investigation of Flow Behavior in Minimum Quantity Lubrication Nozzle for End Milling Processes
title_fullStr Investigation of Flow Behavior in Minimum Quantity Lubrication Nozzle for End Milling Processes
title_full_unstemmed Investigation of Flow Behavior in Minimum Quantity Lubrication Nozzle for End Milling Processes
title_sort investigation of flow behavior in minimum quantity lubrication nozzle for end milling processes
publisher Universiti Malaysia Pahang
publishDate 2012
url http://umpir.ump.edu.my/id/eprint/3502/
http://umpir.ump.edu.my/id/eprint/3502/
http://umpir.ump.edu.my/id/eprint/3502/1/8_Najiha_et_al.pdf
first_indexed 2023-09-18T21:57:52Z
last_indexed 2023-09-18T21:57:52Z
_version_ 1777414200663998464

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