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Investigation of dimensional accuracy and chip formation on peck drilling of mild steel

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Bibliographic Details
Main Author: Mohd Suhail, Mohd Nasri
Other Authors: Muhamad Nasir, Murad
Format: Learning Object
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2021
Subjects:
Drilling
Drilling process
Cutting tool
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/69709
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spelling my.unimap-697092021-02-15T07:13:16Z Investigation of dimensional accuracy and chip formation on peck drilling of mild steel Mohd Suhail, Mohd Nasri Muhamad Nasir, Murad School of Manufacturing Engineering Drilling Drilling process Cutting tool Access is limited to UniMAP community. Drilling process is the most important machining process in the manufacturing industries. Almost all mild steel industries and production are based on drilling process. However, the difficulty of the mild steel machining process is due to the high ductility resulting excessive heat generation at high cutting temperature. A higher cutting temperature was attributed to the high cutting velocity such as feed and depth which affected dimensional accuracy, surface finish and the tool life. In this study, AISI 1018 mild steel had been drilled using 6 mm uncoated high speed steel (HSS) under various cutting speed at a constant feedrate. The dimensional accuracy and chip formation were analysed under the selected cutting speed at constant feedrate of 0.15 mm/min and depth of cut of 30 mm. In this study, the lowest cutting speed of 7.54 m/min imparted the highest dimensional accuracy meanwhile the highest cutting speed of 9.42 m/min resulted in lowest dimensional accuracy. At medium cutting speed of 8.48 m/min, a better dimensional accuracy was observed than highest cutting speed. As a result, diameter errors increase as the increasing of cutting speed due to the higher vibration, affecting the diameter error. Furthermore, the chip formation in new tool produce the spiral shape while worn tool produces excessive string chips during drilling process at cutting speed of 9.42 m/min. According to the results, the best dimensional accuracy occur at the lowest cutting speed and better chip formation are produced on new tool. 2021-02-15T07:13:16Z 2021-02-15T07:13:16Z 2016-05 Learning Object http://dspace.unimap.edu.my:80/xmlui/handle/123456789/69709 en Universiti Malaysia Perlis (UniMAP)
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Drilling
Drilling process
Cutting tool
spellingShingle Drilling
Drilling process
Cutting tool
Mohd Suhail, Mohd Nasri
Investigation of dimensional accuracy and chip formation on peck drilling of mild steel
description Access is limited to UniMAP community.
author2 Muhamad Nasir, Murad
author_facet Muhamad Nasir, Murad
Mohd Suhail, Mohd Nasri
format Learning Object
author Mohd Suhail, Mohd Nasri
author_sort Mohd Suhail, Mohd Nasri
title Investigation of dimensional accuracy and chip formation on peck drilling of mild steel
title_short Investigation of dimensional accuracy and chip formation on peck drilling of mild steel
title_full Investigation of dimensional accuracy and chip formation on peck drilling of mild steel
title_fullStr Investigation of dimensional accuracy and chip formation on peck drilling of mild steel
title_full_unstemmed Investigation of dimensional accuracy and chip formation on peck drilling of mild steel
title_sort investigation of dimensional accuracy and chip formation on peck drilling of mild steel
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2021
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/69709
_version_ 1698698269884940288
score 13.222552

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