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Investigation on the effect of a pre-center drill hole and tool material on thrust force, surface roughness, and cylindricity in the drilling of Al7075

Ghasemi, Amir Hossein, Khorasani, Amir Mahyar and Gibson, Ian 2018, Investigation on the effect of a pre-center drill hole and tool material on thrust force, surface roughness, and cylindricity in the drilling of Al7075, Materials, vol. 11, no. 1, doi: 10.3390/ma11010140.

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Title Investigation on the effect of a pre-center drill hole and tool material on thrust force, surface roughness, and cylindricity in the drilling of Al7075
Author(s) Ghasemi, Amir Hossein
Khorasani, Amir Mahyar
Gibson, IanORCID iD for Gibson, Ian orcid.org/0000-0002-4149-9122
Journal name Materials
Volume number 11
Issue number 1
Total pages 15
Publisher M D P I AG
Place of publication Basel, Switzerland
Publication date 2018-01-16
ISSN 1996-1944
Keyword(s) drilling
thrust force
pre-center drill hole
surface roughness
Science & Technology
Technology
Materials Science, Multidisciplinary
Materials Science
COMPOSITE-MATERIALS
TITANIUM-ALLOYS
TAGUCHI METHOD
CUTTING FORCE
GEOMETRY
DELAMINATION
SPEED
MACHINABILITY
TEMPERATURE
PARAMETERS
Summary Drilling is one of the most useful metal cutting processes and is used in various applications, such as aerospace, electronics, and automotive. In traditional drilling methods, the thrust force, torque, tolerance, and tribology (surface roughness) are related to the cutting condition and tool geometry. In this paper, the effects of a pre-center drill hole, tool material, and drilling strategy (including continuous and non-continuous feed) on thrust force, surface roughness, and dimensional accuracy (cylindricity) have been investigated. The results show that using pre-center drill holes leads to a reduction of the engagement force and an improvement in the surface quality and cylindricity. Non-continuous drilling reduces the average thrust force and cylindricity value, and High Speed Steels HSS-Mo (high steel speed + 5-8% Mo) reduces the maximum quantity of cutting forces. Moreover, cylindricity is directly related to cutting temperature and is improved by using a non-continuous drilling strategy.
Language eng
DOI 10.3390/ma11010140
Field of Research 0913 Mechanical Engineering
03 CHEMICAL SCIENCES
09 ENGINEERING
HERDC Research category C1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2018, The Authors
Free to Read? Yes
Use Rights Creative Commons Attribution licence
Persistent URL http://hdl.handle.net/10536/DRO/DU:30109270

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