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End milling machinability studies for steel, a nickel-base alloy (Inconel 718) and a metal matrix composite

Alauddin, Mohammed (1993) End milling machinability studies for steel, a nickel-base alloy (Inconel 718) and a metal matrix composite. PhD thesis, Dublin City University.

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Abstract

Nickel based superalloys and MMCs are advanced materials which are used in aerospace, automotive, defence industries etc.. In general, these materials are difficult to machine. This thesis describes a study of machinability assessment of Inconel 718", a nickel base superalloy and 2618m MMC, a MMC based on aluminium alloy (matrix metal) and 12% vf. SiCp (reinforcement), using uncoated carbide inserts. In addition to the machining of these two materials preliminary cutting tests were carried out on steel (190 BHN) using HSS solid end mills. Through out the experiment the cutting tests were conducted under dry conditions. The experiments may be summarised as follows: — An investigation of cutting forces, tool life and surface finish in end milling Inconel 718 — Development of the mathematical models for machining responses by Response Surface Methodology: The mathematical models for machining responses ( cutting forces, tool life and surface finish ) are developed in terms of primary machining variables like cutting speed, feed and axial depth of cut. The mathematical models for machining responses cover the following areas: (a) Cutting force models for slot milling steel (190 BHN) and Inconel 718 (b) Tool life models for slot milling steel (190 BHN) (c) Surface roughness models for slot milling steel (190 BHN), Inconel 718 and 2618 MMC.

Item Type:Thesis (PhD)
Date of Award:1993
Refereed:No
Supervisor(s):El Baradie, M.A. and Hashmi, Saleem
Uncontrolled Keywords:Alloys; Machinability
Subjects:Engineering > Materials
Engineering > Mechanical engineering
DCU Faculties and Centres:DCU Faculties and Schools > Faculty of Engineering and Computing > School of Mechanical and Manufacturing Engineering
Use License:This item is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 3.0 License. View License
ID Code:18300
Deposited On:11 Jun 2013 11:08 by Celine Campbell. Last Modified 11 Jun 2013 11:08

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