Machining performance of carbide insert in turning aluminum alloy 7075-T651

Haszerin, Muhammad Na'iim and A. Raof, Natasha and M Zamre, M K A and Dahnel, Aishah Najiah and Mokhtar, Suhaily and Muhamad Khairussaleh, Nor Khairusshima (2023) Machining performance of carbide insert in turning aluminum alloy 7075-T651. In: International Conference on Manufacturing Engineering Technology (ICONMET 2021), 14-15 July 2021, Asenia Resort, Langkawi, Malaysia.

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Abstract

Aluminium alloys are commonly used in the aerospace, automobile and electricity transmission industries due to its excellent strength to low weight ratio. The demand of high accuracy machining in the market today has made the optimizing of the machining parameters an important aspect of machining. Aluminium alloy Al7075-T651 is a ductile material. In continuous machining operation like turning, high amount of friction and heat is generated. This may cause the workpiece's material to adhere to the rake face of the cutting insert and lead to the built-up edge (BUE) formation. This BUE will detach and adhere to the chips in a way the surface roughness of the workpiece would be affected. This project is focusing on the machinability of aluminum alloy Al7075-T651 by measuring the performance of KW10 uncoated carbide cutting tool in terms of flank wear, surface roughness of the machined surface, wear mechanism and volume of material removed. The turning experiment was conducted in dry condition. The cutting speed range was 250 and 450 m/min whereas the feed rate range was 0.05 and 0.15 mm/rev. The depth of cut was kept constant at 1 mm. The results showed that the higher cutting speed and feed rate produced higher flank wear progression and higher surface roughness reading (Ra). The adhesive and abrasive wear can be seen through the SEM for all sets of parameters. It was identified that higher cutting parameters removed higher amounts of volume material with shorter tool life.

Item Type:	Proceeding Paper (Other)
Subjects:	T Technology > TA Engineering (General). Civil engineering (General) > TA170 Environmental engineering. Sustainable engineering T Technology > TA Engineering (General). Civil engineering (General) > TA213 Engineering machinery, tools, and implements
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering Kulliyyah of Engineering > Department of Manufacturing and Materials Engineering
Depositing User:	Natasha A. Raof
Date Deposited:	01 Oct 2024 09:32
Last Modified:	01 Oct 2024 09:32
URI:	http://irep.iium.edu.my/id/eprint/114652

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