Machining Burrs Formation &amp; Deburring of Aluminium Alloys

Niknam, Seyed Ali; Zedan, Yasser; Songmené, Victor

doi:10.5772/58361

Cited by 16 publications

(7 citation statements)

References 51 publications

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“…It has been found that the MQL process can reduce the cutting forces, friction and wear compared to dry cutting [29]. Sukhpal shows that the MQL reduces the drilling torques and thrust forces as compared to other coolant-lubrication conditions [30].From the effectiveness of the MQL on machining imperfections reduction, it is clear that additional studies are still required to select the appropriate cutting conditions to reduce machining imperfections over a limited range of process parameters [31]. Sreejith and Ngoi show the effects of the flooded coolant, MQL and dry conditions on surface roughness, tool wear and cutting forces in turning aluminum alloy [32].…”

Section: Introductionmentioning

confidence: 99%

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

Alliche¹,

Djebara²,

Zedan³

et al. 2020

Preprint

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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.

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Section: Introductionmentioning

confidence: 99%

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

Alliche¹,

Djebara²,

Zedan³

et al. 2020

Preprint

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“…The successful applications of MQL in drilling operations are reported in literature [24][25][26]. Distinctly from the effectiveness of the MQL on machining imperfections reduction, additional studies are still required to select appropriate cutting conditions to reduce machining imperfections over a limited range of process parameters [27]. Sreejith and Ngoi statement the effects of flooded coolant, MQL and dry conditions on surface roughness, tool wear and cutting forces in turning aluminum alloy [28].…”

Section: Introductionmentioning

confidence: 99%

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

Alliche¹,

Djebara²,

Zedan³

et al. 2019

Preprint

Self Cite

View full text Add to dashboard Cite

This article discuss the effects of heat treatment on the machinability of Al-Si-Mg alloys (A356) cast alloys for as-received alloy, solution heat-treated alloy (SHT) as well as solution heat treated and then aged alloys at 155ºC, 180ºC, and 220ºC. 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 selected machinability criteria are important and necessary to effectively evaluate the machinability of A356 alloys. Machinability of both materials and tool was estimated in terms of chip thickness ratio and burr formation, roughness, cutting force and flank wear. The effects of various lubrication modes such as dry, mist and wet, cutting parameters, including cutting speed and feed rate on the machinability of A356 cast alloys were also examined. Experimental results proves that the heat treatment parameters strongly controlling the burr formation and surface quality. The results obtained indicate that better drilling performance in terms of surface quality occurs at high feed rate, dry drilling and artificial aging at T6.

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“…Due to global competition, the machinability attributes such as tool life, chip characteristics, chip disposal, surface finish and burr formation are of major concern when dealing with high precision machining (Niknam et al 2014a). The presence of the latter tend to affects the work part quality and precise accuracy of the deburring processes (Songmene et al 2013;Niknam et al 2014b).…”

Section: Introductionmentioning

confidence: 99%

“…However, fundamental aspects of burr formation, as well as milling burr size minimization have been reasonably understood (Hashimura et al 1995;Olvera et al 1996;Lin 2000;Chern 2006;Biermann et al 2010;Niknam et al 2013a) and several solutions including experimental characterization and analytical modeling approaches were presented (Aurich et . 2009;Niknam et al 2014a;Niknam et al 2015. However, among milling operations, slot milling ( Figure 1) has a very complex burr shape and formation mechanism which may pose complex difficulties during deburring operations (Niknam 2013;Niknam et al 2014d).…”

Section: Introductionmentioning

confidence: 99%

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Burr edge occupancy: edge finishing index for milling machined parts

Niknam

Tiabi

Songmené

2019

Transactions of the Canadian Society for Mechanical Engineering

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Machining burrs are formed at all machined workpiece edges. One useful solution to decrease machining time and cost, in particular for milling parts, is to generate machined parts edges with minimum burr. This article proposes burr edge occupancy ηs as an index to evaluate deburring difficulty and, consequently, adequate selection of suitable deburring methods. Initially the sensitivity of ηs to cutting parameters must be evaluated. We investigated the main governing factors on ηs when slot milling two types of aluminium alloys (from different families) that are used in the automotive and aerospace industries. The cutting parameters that led to edges with minimum ηs are presented. It was found that, unlike most burr size attributes, ηs is sensitive to variation of the cutting parameters used: cutting speed, family of material, and cutting tools. Lower ηs means less time and effort for deburring and edge finishing of machined parts. Furthermore, ηs measurement is more convenient than the procedures used to measure other burr size attributes, including burr height (bh) and burr thickness (bt).

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Machining Burrs Formation & Deburring of Aluminium Alloys

Cited by 16 publications

References 51 publications

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

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

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

Burr edge occupancy: edge finishing index for milling machined parts

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