Machinability study of recycled aluminum cans and machining chips

Moungomo, Jean Brice Mandatsy; Nganga-Kouya, Donatien; Songmené, Victor; Kouam, Jules; Kenné, Jean‐Pierre

doi:10.1007/s00170-016-8564-x

Cited by 14 publications

(9 citation statements)

References 18 publications

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“…The lubricant used (BLASOCUT ® BC 20 SW) is a mixture of mineral oils, emulsifiers, EP additives (chlorinated paraffin, C 14-17 ) and inhibitors. The data in Table 3 are taken with reference to the study by the authors of [20], who had previously investigated the machinability of recycled aluminum alloys. To stay in the same logic, it was considered necessary to fix the use of the cutting speeds considered by [20].…”

Section: Methodsmentioning

confidence: 99%

“…The data in Table 3 are taken with reference to the study by the authors of [20], who had previously investigated the machinability of recycled aluminum alloys. To stay in the same logic, it was considered necessary to fix the use of the cutting speeds considered by [20]. Since the study was made for finishing operations, the feed is considered in an interval ranging from 0.05 mm/rev to 0.2 mm/rev.…”

Section: Methodsmentioning

confidence: 99%

“…The authors of [20,21] have studied the machinability in the turning of recycled aluminum alloys by foundry, and in [19], the same procedure has been carried out by drilling. The purpose of their studies was to assess the surface roughness and mass concentration of metal particles.…”

Section: Chips Morphologymentioning

confidence: 99%

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Influence of Heat Treatments, Parameters and Machining Conditions on Machinability in the Turning of Recycled 6061 Aluminum Alloy

Moungomo¹,

Kibouka²,

Nganga-Kouya³

2021

JMMP

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Some manufacturing companies now use recycled aluminum alloys. It is important that they have the necessary data relating to the control of the machinability of these alloys. Thus, this study on the machinability in the turning of two recycled aluminum alloys by a 6061 R and 6061 R-T6 smelter was conducted. The aim of this study is to provide solutions to the problem posed, which is whether recycled aluminum alloys have good machinability skills, such as virgin aluminum alloys. To provide these solutions, the experimental designs were used to study the influence of cutting parameters and conditions (feed, cutting speed, lubrication) and material hardness on machinability characteristics (surface roughness, mass concentration of metal particles, and chip morphology). The results of this study show that the two alloys studied have good machinability. The feed, hardness and lubrication significantly influence the machinability of these two alloys. Predictive models to assess the machinability of these recycled alloys have been established.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Influence of Heat Treatments, Parameters and Machining Conditions on Machinability in the Turning of Recycled 6061 Aluminum Alloy

Moungomo¹,

Kibouka²,

Nganga-Kouya³

2021

JMMP

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“…[6][7][8][9]. There are great literature reports concerning the consolidation of metallic chips based on the traditional plastic deformation processes (e. g. high-temperature extrusion) [10][11][12][13][14][15][16][17][18][19][20][21][22]. However, conventional, high-temperature extrusion of chips does not result in their satisfactory consolidation due to the slight value of extrusion ratio λ and strong surface oxidation of chips.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Product From 7075 Aluminum Chips After Consolidation by Kobo Method

Pawłowska¹

2020

Acta Metall Slovaca

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This paper presents the possibility of consolidating side products of turning of aluminum alloys into the form and properties of solids metals using low-temperature KoBo extrusion method has been assessed.The proposed method is based on cold compaction of chips into briquettes, and then extrusion by KoBo method at room temperature. The extruded wires were tested for mechanical properties (uniaxial tensile test and Vickers hardness test), and compared with specific mechanical properties of solid material. A very good effect of chips compaction has been proved by KoBo method, which has been confirmed by relatively slightly different mechanical properties of the material after consolidation compared with the solid one.

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“…Analysis of variance (ANOVA) was used to estimate the effect of each factor, and it was found that the most significant factor affecting surface roughness is the feed rate followed by the lubrication use and alloy source. 6 Lela et al 7 built a mathematical model to relate the process parameter of direct recycling aluminum alloy EN AW 2011 into semi-products using hot extrusion. The Box-Behnken experimental design was used to build the model.…”

Section: Introductionmentioning

confidence: 99%

Effect of extrusion temperature on the surface roughness of solid state recycled aluminum alloy 6061 chips during turning operation

Ragab

Taha

Abbas

et al. 2017

Advances in Mechanical Engineering

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Nowadays solid state recycling of aluminum chips provides a competitive market for the aluminum foundry. Chip recycling requires an efficient pretreatment system in terms of optimizing consolidating technique to achieve a high metal recovery with rapid return of investment and hence drive down fixed cost and increase productivity without compromising on metal quality. Solid state recycling through hot extrusion is a promising technique to recycle machining chips without re-melting. In this article, aluminum chips were cold compacted followed by hot extrusion under extrusion ratio of 5.2 and at three different extrusion temperatures of 350°C, 425°C, and 500°C. The effect of extrusion temperature on the surface roughness (Ra and Rz) and machining time needed to remove a unit volume of aluminum alloy 6061 machined by turning were investigated. The effect of extrusion temperature was investigated using the Box-Behnken design; three machining parameters (depth of cut, feed rate, and cutting speed) on the surface roughness of the machined specimens were also examined. Obtained results were in favor of the presence of significant effect of those four parameters on specimen surface roughness with dominating effect of feed rate. Moreover, the optimum cutting conditions for minimum machining time per unit volume (T m) while Ra is kept below an industrially accepted value of 0.8 mm was found for the original alloy for the following cutting conditions: cutting speed of 116 m/min, depth of cut of 0.33 mm, and feed rate of 0.11 mm/rev.

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Machinability study of recycled aluminum cans and machining chips

Cited by 14 publications

References 18 publications

Influence of Heat Treatments, Parameters and Machining Conditions on Machinability in the Turning of Recycled 6061 Aluminum Alloy

Influence of Heat Treatments, Parameters and Machining Conditions on Machinability in the Turning of Recycled 6061 Aluminum Alloy

Mechanical Properties of Product From 7075 Aluminum Chips After Consolidation by Kobo Method

Effect of extrusion temperature on the surface roughness of solid state recycled aluminum alloy 6061 chips during turning operation

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