Preprint Article Version 2 This version is not peer-reviewed

Effect of Artificial Aging Treatment and lubrication Modes on the Machinability of A356 Cast Alloys

Version 1 : Received: 24 December 2019 / Approved: 25 December 2019 / Online: 25 December 2019 (07:23:16 CET)
Version 2 : Received: 25 March 2020 / Approved: 27 March 2020 / Online: 27 March 2020 (02:54:29 CET)

How to cite: Alliche, M.A.; Djebara, A.; Zedan, Y.; Songmene, V. Effect of Artificial Aging Treatment and lubrication Modes on the Machinability of A356 Cast Alloys. Preprints 2019, 2019120338 (doi: 10.20944/preprints201912.0338.v2). Alliche, M.A.; Djebara, A.; Zedan, Y.; Songmene, V. Effect of Artificial Aging Treatment and lubrication Modes on the Machinability of A356 Cast Alloys. Preprints 2019, 2019120338 (doi: 10.20944/preprints201912.0338.v2).

Abstract

This article discuss the effects of heat treatment and lubrication modes on the machinability of an A356 alloy (Al-Si-Mg); the alloy is studied as-received, with solution heat-treated alloy (SHT) as well as with an alloy that is solution heat-treated and then aged at 155, 180 and 220 °C. In the course of machinability evaluation, several criteria including cutting force, surface roughness, tool wears and burr analysis (chip) were studied. The results and analysis in this work indicated that the selected machinability criteria are important and necessary to effectively evaluate the machinability of A356 alloys. The machinability of both materials and tools were estimated in terms of cutting force, chip thickness ratio and burr formation, flank wear and roughness. The effects of different cutting parameters (cutting speed and feed rate) and lubrication modes (dry, mist and wet) on the machinability of the A356 cast alloy were also examined. The influence of heat treatments on the burr formation and surface quality was clearly revealed by the experimental results. Experimental work revealed that cutting forces were influenced significantly by aging and cutting speed. However, the different aging at 155, 180, and 220 °C and the cutting speed significantly affected the machinability of the A356 cast alloy. The results obtained show that a better drilling performance in terms of surface quality occurs at a high feed rate, with dry drilling and artificial aging at T6.

Subject Areas

aluminum alloys; artificial aging; drilling; surface quality; cutting fluid; burr formation

Comments (1)

Comment 1
Received: 27 March 2020
Commenter: djebara abdelhakim
Commenter's Conflict of Interests: Author
Comment: Accept in current form
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