Laser cutting of 7050 Al alloy reinforced with Al2O3 and B4C composites

Yilbaş, Bekir Sami; Khan, Shafique M.A.; Raza, Kabeer; Keleş, Ömer; Übeylı, Mustafa; Demir, Teyfik; Karakaş, Mustafa Serdar

doi:10.1007/s00170-009-2489-6

Cited by 33 publications

(12 citation statements)

References 18 publications

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“…Finally, the mold was kept inside the furnace until 250 o C furnace temperature and then placed in the open air to complete the cooling. This method was similar to the fabrication route used by previous researchers [6], [19]- [22].…”

Section: A Ball Milling and Pressingmentioning

confidence: 96%

Effect of sub-Zero Treatment on Ageing of Aluminium Composite

Taşkesen¹,

Aksöz²,

Özdemir³

2018

IJMMM

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Abstract-In this study, B4C reinforced 7075 Al composites were fabricated by cold and hot pressing of Al, Cu, Zn and Mg elemental powders. Two different reinforcement rates (10% and 15%) were used for the composites. In order to examine the structural and mechanical properties, different sub-zero and ageing processes were applied to the composites. Sub-zero and stepped ageing treatments were applied after solutionizing at 470 o C for different time periods. It was found that hardness of the composite was substantially increased and micro structure was changed. Findings show that, general strength of the material significantly increased particularly after solutionization process.Index Terms-B4C, aluminium composite, sub-zero treatment, ageing.

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Section: A Ball Milling and Pressingmentioning

confidence: 96%

Effect of sub-Zero Treatment on Ageing of Aluminium Composite

Taşkesen¹,

Aksöz²,

Özdemir³

2018

IJMMM

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“…This method is, in fact, the standard procedure to produce Al-based composites [6,[20][21][22][23], where consequently, three different batches of composites with different percentages of B 4 C content were produced (Table 1).…”

Section: Manufacturing the Materialsmentioning

confidence: 99%

The effect of cryogenic treatment on ageing behaviour of B4C reinforced 7075 aluminium composites

TASKESEN¹,

Aksöz²,

Özdemir³

2017

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In the current study, an effect of cryogenic treatment on the ageing of a B4C particulate reinforced 7075 aluminium alloy was investigated to identify changes in hardness with respect to ageing time. To achieve this, first, 10, 15, and 25 % by weight B4C particulate containing 7075 Al composite specimens were produced by hot pressing of Al, Cu, Zn, and Mg elemental powders. Next, cryogenic treatment and multiple steps of tempering were adapted to several samples. Such as, after solutionizing at 470• C and sub-zero treatment at -146• C, successive intervals of artificial ageing at 120• C for different time periods were applied. During the heat treatment, hardness values were measured after each interval. Findings reveal that, particularly after solutionization, cryogenic treatment before ageing yields high hardness values. However, the hardness of the composite material exceeds this level during ageing treatment, mainly after long ageing times.K e y w o r d s:

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“…Following that operation, the materials were placed in an electrical furnace, and the materials were sintered at 540°C in a liquid phase for half an hour. This production technique was similar to the fabrication route used by previous Al, c Zn, d Cu researchers [10][11][12]. The microstructure of composite was shown in Fig.…”

Section: Production Of the Composite Materialsmentioning

confidence: 99%

Analysis of thrust force in drilling B4C-reinforced aluminium alloy using genetic learning algorithm

Taşkesen

Aldaş

Özkul

et al. 2014

Int J Adv Manuf Technol

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This paper presents an analysis for the prediction of thrust force in drilling of aluminium-based composites, reinforced with boron-carbide B 4 C produced with the powdermetallurgy (PM) technique. The formulation was derived on experimental bases. The experiments were conducted with various cutting tools and parameters on conditions of dry machining in a computer numerical control (CNC) vertical machining centre. The thrust forces were obtained by measuring the forces between the drill bit and the work pieces during the experiments. In the experiments, particle fraction, feed rate, spindle speed and drill bit type were used as input parameters, and thrust force was the output data for the gene expression programming (GEP) software. Customizing for formulation in order to describe the problem was generated by GEP, and it was analysed from different perspectives and verified the reliability of equation.

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Laser cutting of 7050 Al alloy reinforced with Al2O3 and B4C composites

Cited by 33 publications

References 18 publications

Effect of sub-Zero Treatment on Ageing of Aluminium Composite

Effect of sub-Zero Treatment on Ageing of Aluminium Composite

The effect of cryogenic treatment on ageing behaviour of B4C reinforced 7075 aluminium composites

Analysis of thrust force in drilling B4C-reinforced aluminium alloy using genetic learning algorithm

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