Chip pattern, burr and surface roughness in laser assisted micro milling of Ti6Al4V using micro ball end mill

The effectiveness of laser heating could easily fluctuates when the uncut chip thickness are extremely inconsistent. In the case of using micro ball end mill tool, rubbing mechanism is inevitable due to its radial shape geometry. Furthermore, the scenario could be worst when the workpiece is a duct...

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Main Authors: Z. Mohid, E.A. Rahim
Format: Article
Language:English
Published: Universiti Malaysia Pahang Publishing 2018-03-01
Series:Journal of Mechanical Engineering and Sciences
Subjects:
Online Access:https://journal.ump.edu.my/jmes/article/view/7887
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author Z. Mohid
E.A. Rahim
author_facet Z. Mohid
E.A. Rahim
author_sort Z. Mohid
collection DOAJ
description The effectiveness of laser heating could easily fluctuates when the uncut chip thickness are extremely inconsistent. In the case of using micro ball end mill tool, rubbing mechanism is inevitable due to its radial shape geometry. Furthermore, the scenario could be worst when the workpiece is a ductile material which has low thermal conductivity such as Ti6Al4V. Thus, characterization study was carried out to evaluate the feasibility of micro ball end mill in laser assisted micro milling operation. The chip, burr and surface roughness from conventional and laser assisted micro milling were compared and discussed. It is understood that the chip pattern indirectly gives significant influence to the effectiveness of laser assisted micro milling technique. With tool edge radius of 2 × 10-3 mm, feed value of 3.0 × 10-3 mm produced more consistent surface roughness compared to feed value of 2.1 and 4.2 × 10-3 mm. The machining parameters which produced continuous and conical chips ended up with sever burr formation and surface roughness inconsistency.
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spelling doaj.art-c4da6809ee1c4dd5b0d1a51dcee98e432023-09-03T13:59:07ZengUniversiti Malaysia Pahang PublishingJournal of Mechanical Engineering and Sciences2289-46592231-83802018-03-011213410343010.15282/jmes.12.1.2018.10.0304Chip pattern, burr and surface roughness in laser assisted micro milling of Ti6Al4V using micro ball end millZ. Mohid0E.A. Rahim1Precision Machining Research Centre (PREMACH), Faculty of Mechanical & Manufacturing Engineering, Universiti Tun Hussein Onn MalaysiaPrecision Machining Research Centre (PREMACH), Faculty of Mechanical & Manufacturing Engineering, Universiti Tun Hussein Onn MalaysiaThe effectiveness of laser heating could easily fluctuates when the uncut chip thickness are extremely inconsistent. In the case of using micro ball end mill tool, rubbing mechanism is inevitable due to its radial shape geometry. Furthermore, the scenario could be worst when the workpiece is a ductile material which has low thermal conductivity such as Ti6Al4V. Thus, characterization study was carried out to evaluate the feasibility of micro ball end mill in laser assisted micro milling operation. The chip, burr and surface roughness from conventional and laser assisted micro milling were compared and discussed. It is understood that the chip pattern indirectly gives significant influence to the effectiveness of laser assisted micro milling technique. With tool edge radius of 2 × 10-3 mm, feed value of 3.0 × 10-3 mm produced more consistent surface roughness compared to feed value of 2.1 and 4.2 × 10-3 mm. The machining parameters which produced continuous and conical chips ended up with sever burr formation and surface roughness inconsistency.https://journal.ump.edu.my/jmes/article/view/7887laser assisted micro millingchip patternburrsurface roughnessti6al4v
spellingShingle Z. Mohid
E.A. Rahim
Chip pattern, burr and surface roughness in laser assisted micro milling of Ti6Al4V using micro ball end mill
Journal of Mechanical Engineering and Sciences
laser assisted micro milling
chip pattern
burr
surface roughness
ti6al4v
title Chip pattern, burr and surface roughness in laser assisted micro milling of Ti6Al4V using micro ball end mill
title_full Chip pattern, burr and surface roughness in laser assisted micro milling of Ti6Al4V using micro ball end mill
title_fullStr Chip pattern, burr and surface roughness in laser assisted micro milling of Ti6Al4V using micro ball end mill
title_full_unstemmed Chip pattern, burr and surface roughness in laser assisted micro milling of Ti6Al4V using micro ball end mill
title_short Chip pattern, burr and surface roughness in laser assisted micro milling of Ti6Al4V using micro ball end mill
title_sort chip pattern burr and surface roughness in laser assisted micro milling of ti6al4v using micro ball end mill
topic laser assisted micro milling
chip pattern
burr
surface roughness
ti6al4v
url https://journal.ump.edu.my/jmes/article/view/7887
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AT earahim chippatternburrandsurfaceroughnessinlaserassistedmicromillingofti6al4vusingmicroballendmill