Dry and minimum quantity lubrication drilling of cast magnesium alloy (AM60)

Bhowmick, S.; Lukitsch, M.J.; Alpas, A.T.

doi:10.1016/j.ijmachtools.2010.02.001

Cited by 111 publications

(50 citation statements)

References 24 publications

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“…Other investigations, as the developed by Gariboldi [66] and Bhowmick et al [31], identified the adhesion on the edge of the tool as a cause of wear during the drilling of the AM60B and AM60 alloys, respectively. Likewise, Gariboldi [66] identified a range of feed rates that guarantees a good tool life and limited surface roughness.…”

Section: Drillingmentioning

confidence: 98%

“…One of the main strategies to improve fuel consumption in the transportation sector is the reduction of the mass of the vehicles [30]. In this sense, magnesium finds many applications in the automotive industry because of its low density, being a suitable material to replace steel and cast iron [31]. Thus, magnesium is being used more frequently in the transportation industries among other materials such as aluminium, plastics or carbon fibres [32], estimating the average consumption of magnesium per vehicle in 50 kg by 2015 [33].…”

Section: Automotivementioning

confidence: 99%

See 1 more Smart Citation

Machinability of Magnesium and Its Alloys: A Review

Carou

Rubio

Davim

2014

Materials Forming, Machining and Tribology

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In the last decades, the interest for magnesium has increased notably. In particular, the need for weight reduction in the automotive industry has made magnesium a suitable material to replace traditional structural materials because of its low density. But, in addition, magnesium is also finding applications in different sectors as aeronautics, electronics, medical or sports. Thus, machining of magnesium is a topic of great interest for industry and researchers. In the present work, an introduction to the main topics on magnesium machining is presented. The text covers from general topics of magnesium to more specific ones related with the machining process. In this sense, an approximation to the properties of magnesium, magnesium alloys and metal matrix composites of magnesium, and some applications are presented to give a general overview of magnesium. After that, the machining of magnesium is covered addressing general issues and more specific particularities of magnesium machining, such as the ignition risk. To conclude, a brief review of some of the main experimental investigations on magnesium machining is presented, covering drilling, milling and turning processes. In these studies, the machining process is assessed using indicators such as surface finish, temperature or tool wear.

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Section: Drillingmentioning

confidence: 98%

Section: Automotivementioning

confidence: 99%

Machinability of Magnesium and Its Alloys: A Review

Carou

Rubio

Davim

2014

Materials Forming, Machining and Tribology

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“…Three levels of flow rate and air pressure were used: 20, 40, and 60 ml/h and 1, 2, and 3 bars. The choice of those levels was based on previous studies on MQL drilling of aluminum alloys which applied flow rates in the range of 10 to 100 ml/h and in some cases up to 250 ml/h [8,9,[59][60][61][62][63][64][65][66][67][68]. …”

Section: Mql Drilling Trials Setupmentioning

confidence: 99%

Breakthrough of regenerative chatter modeling in milling by including unexpected effects arising from tooling system deflection

Totis

2016

Int J Adv Manuf Technol

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Conventional twist drilling is a widely used machining process for creating holes in aerospace and automobile structures. Drilling at room temperature can sometime affect the quality of machined holes due to increased thermal effects on the workpiece. Thermal effects can be a cumbersome when machining composites and fiber metal laminates due to their different thermal expansion coefficients, which may introduce additional stress in the structure. Thermal machining effects can be minimized using coolants supplied either directly or indirectly to the cutting tool-workpiece interaction zone, to remove away part of the generated heat. The use of coolants adds extra costs for handling, disposal, and environmental impact. Therefore, environmentally friendly cooling technologies are replacing conventional cooling methods to reduce costs and impact on the environment. In addition, the selection of machining parameters has great influence on the hole quality. This paper investigates the impact of drilling parameters and two modern cooling technologies namely cryogenic liquid nitrogen and minimum quantity lubrication on the hole perpendicularity error of fiber metal laminates commercially known as GLARE® (Glass Laminate Aluminum Reinforced Epoxy). It was also found that applying cryogenic liquid nitrogen or minimum quantity lubrication does not lead to an improvement in hole perpendicularity error in GLARE® laminates.

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“…For micro-drilling, effect of MQL is more significant as the mist coolant is more capable of entering the micro channel between the drill bit and the newly created hole; as small scale drilling is susceptible to clogging of chips with the tool [10]. For overall drilling purposes, MQL has been able to draw significant attention in terms of lower rate of Built Up Edge (BUE) formation and tool life compared to dry condition [11], drilled hole roundness deviation was better using MQL compared to dry and flood coolant as reported by [12]. In terms of different coatings of the cemented carbide drill as reported by [13], with a special design of the drill to have better mist distribution , the performance was equivalent to flood cooling.…”

Section: Introductionmentioning

confidence: 99%

Minimum Quantity Lubrication (MQL) and its Effect on Tool Wear During Miniature Drilling :an Experimental Study

Mohamad

Bahar

2016

IJEMM

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Miniature drilling is widely used in industries including electronics and reconstructive surgeries to create small sized holes. Chip removal and effective supply of coolant are the two limiting factors that make the process more complex compared to other meso scale machining processes and also contribute to the tool wear. The tool wear in the process is mainly caused by the interaction, motion and chip production between the tool and work piece. Uniform supply of coolant must be ensured to reach the drilled cavity to keep the tool wear to a minimal level. This study includes experimental investigation of the tool condition after applying Minimum Quantity Lubrication (MQL) system as a greener approach as the name indicates. The tool condition with MQL has also been compared with dry and flood cooling. Two different types of drill bit materials (High Speed Steel and Carbide) have been tested under same experimental condition to drill through Aluminum Alloy 6061 and it has been found that overall performance in terms of tool condition after applying MQL was better compared to the other two methods. The overall wear propagation area was measured for both the conditions. It was seen, the wear propagation covered minimal area with MQL while for flood and dry condition wear was spread over a bigger area on flank.

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Dry and minimum quantity lubrication drilling of cast magnesium alloy (AM60)

Cited by 111 publications

References 24 publications

Machinability of Magnesium and Its Alloys: A Review

Machinability of Magnesium and Its Alloys: A Review

Breakthrough of regenerative chatter modeling in milling by including unexpected effects arising from tooling system deflection

Minimum Quantity Lubrication (MQL) and its Effect on Tool Wear During Miniature Drilling :an Experimental Study

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