Turning characteristics of in situ formed TiB2 ceramic particulate reinforced AA7075 aluminum matrix composites using polycrystalline diamond cutting tool

Pugazhenthi, A.; Kanagaraj, G.; Dinaharan, I.; Selvam, J. David Raja

doi:10.1016/j.measurement.2018.02.039

Cited by 38 publications

(13 citation statements)

References 30 publications

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“…On the other hand, because of the high safety factors which must be met by means of transport, the quality requirements for the manufactured components are very high. Therefore, manufacturing methods ensuring the required dimensional tolerance and a proper surface finish are indispensable in the production cycle [18]. Such a method is machining.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Diamond Blades in the Turning of Aluminium Composites

Karolczak¹,

Kołodziej²,

Kowalski³

2020

Adv. Sci. Technol. Res. J.

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Owing to their excellent strength-to-weight ratio aluminium composite materials are very readily used in the construction of means of transport. The parts made of such materials must be characterized by high reliability and workmanship. Hence, machining is the predominant method of manufacturing parts from composites. The problem with the turning, milling and drilling of ceramic-reinforced composites is the abrasive action of the reinforcement, resulting in heavy wear of the blades and so in lower surface quality and dimensional-shape accuracy and higher manufacturing costs. A solution to this problem can involve the blades made of superhard materials or properly matched conditions of machining with sintered carbide blades. This paper presents the results of the turning tests carried out on an aluminium composite material reinforced with long ceramic fibres. An uncoated sintered carbide blade is compared with a diamond coated blade and a polycrystalline diamond blade. Post-turning surface roughness and machining forces were selected as the main indicators of cutting ability. The effect of the blades on the forming chips is shown and the higher resistance of the polycrystalline diamond blades to the abrasive action of the reinforcing fibres is confirmed by microscopic photographs. Besides the confirmation of the higher durability of the diamond blades, the conditions in which when using these blades one can achieve better machining effects than the ones achievable by the compared tools are defined. Moreover, it is shown that by properly matching the machining parameters and aiding machining with oil mist lubrication, it is possible to obtain excellent surface quality by means of carbide blades. The minimum quantity lubrication also increases the life of the blades.

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Section: Introductionmentioning

confidence: 99%

Effectiveness of Diamond Blades in the Turning of Aluminium Composites

Karolczak¹,

Kołodziej²,

Kowalski³

2020

Adv. Sci. Technol. Res. J.

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“…To determine the relationship between optimum values and normalized values, grey relational co-efficient has been practiced. Grey relational co-efficient has been calculated using relation (12) given below:…”

Section: Grey Relational Analysismentioning

confidence: 99%

“…Reinforcement in AMCs has abrasive nature and retains a drastic threat to the tool life. Abrasion during machining erodes the tool material at a faster rate and causes early failure of the tool [12]. Moreover, reinforced particles are pulled out during machining and act as an abrasive cutting edge which deteriorates the surface finish of work material [13,14].…”

Section: Introductionmentioning

confidence: 99%

Cryogenic Treatment Analysis in WEDM of Al2024/Al2O3/W Composite

Raza

Ali

Tahir

et al. 2021

Preprint

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Increasing demand for aluminum matrix composites (AMCs) in the manufacturing sector leads to the development of squeeze casted hybrid AMCs bearing superior mechanical attributes. Excessive hardness due to squeeze pressure and the presence of reinforcement particles makes the machining of AMCs challenging and results in excessive tool wear and inadequate surface finish. Wire electric discharge machining (WEDM) process has been preferred over conventional manufacturing processes for the machining of squeeze casted Al2024/Al2O3/W hybrid composite. This study investigates the selection of the most pertinent wire electrode for the precise machining of Al2024/Al2O3/W. Simple zinc-coated (NT) and cryogenic treated (CT) brass wire electrodes have been selected for machining. Scanning electron microscope (SEM) analysis of CT wire shows that cryogenic treatment enhances the soundness and stability by reducing microcavities in its microstructure. To analyze the effects of cryogenic treatment, the machining performance of CT wire has been compared with NT wire. Besides wire type, the influence of key input variables has also been analyzed on the imperative response measures including cutting speed (CS), surface roughness (SR) and kerf width (KW) to make the machining process more effective. Microstructural analysis of NT wire depicts a high concentration of micro-voids, micro-cracks, and deep craters, while the surface of CT has been observed relatively fine after the machining. Comparative analysis of both wire electrodes has declared that CT wire yields 26.96% and 15.10% superior results for CS and SR respectively, and 6.92% deprived results for KW than NT wire.

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“…Yapılan literatür incelemesinde, alüminyum [22], titanyum [23], magnezyum [24] malzemeleri ile üretilen MMK malzemelerin ve seramik takviyeli [25,26] Geçmişte, çeşitli kompozit malzemelerin farklı talaşlı imalat yöntemleriyle şekillendirilmesi ile ilgili çalışmalar bulunmaktadır. Bunlar, aynı malzemenin farklı kesme şartlarında işlendiği [28,[32][33][34] ve farklı kompozisyon oranlarında ve farklı kesme şartlarında [35][36][37][38] işlendiği çalışmalar olarak iki grupta incelenebilir. Bu çalışmalar dikkate alındığında literatürde bir eksiklik görülmüş ve bu eksiklik doğrultusunda deneysel ve istatistiksel analize dayanan bir çalışmanın yapılması uygun görülmüştür.…”

Section: Introductionunclassified

Kompozit Malzemelerin Tornalanması Esnasında Oluşan Kesme Kuvvetlerinin Optimizasyonu

Salur¹,

Aslan²,

Kuntoğlu³

et al. 2020

Academic Platform Journal of Engineering and Science

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Kompozit malzemeler kullanılacağı yere göre tasarlanan ve üretilen malzemelerdir. Dolayısıyla kompozit malzemeler aynı üretim metodu kullanılarak kullanılacağı yere göre farklı üretim parametrelerinde üretilebilir. Farklı üretim parametrelerinde üretilen kompozit malzemeler farklı mekanik özelliklere sahip olacağı için bu durum kompozit malzemelerin işlenebilirlik özelliklerini etkiler. Bu sebeple kompozit malzemelerin işlenmesi esnasında oluşan kesme kuvvetlerinin tespit edilmesi ve optimizasyonu önem arz etmektedir. Bu kapsamda, 3 farklı üretim sıcaklığı (350, 400 ve 450˚C) ve basıncı (480, 640 ve 820 MPa) ile 4 farklı karışım oranında (ağ. %10, ağ. %20, ağ. %30, ağ. %40) üretilen dökme demir (GGG-40) takviyeli ve bronz matrisli (CuSn10) kompozit malzemelerin kuru kesme şartlarında tornalanması esnasında kesme kuvvetlerinin optimizasyonu gerçekleştirilmiştir. Tam faktöriyel tasarım prensibi ile 36 deney yapılmış ve üç eksende kesme kuvvetleri ölçümü alınarak bileşke kesme kuvveti hesabı yapılmıştır. Deneyler esnasında kesme şartları sabit tutulmuştur (kesme hızı=50 m/dak, ilerleme=0,128 mm/dev ve talaş derinliği=1 mm). Varyans analizi (ANOVA) neticesinde bileşke kesme kuvveti üzerine en çok etkisi olan parametrenin %80 katkı oranıyla birlikte üretim basıncı olduğu tespit edilmiştir.

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Turning characteristics of in situ formed TiB2 ceramic particulate reinforced AA7075 aluminum matrix composites using polycrystalline diamond cutting tool

Cited by 38 publications

References 30 publications

Effectiveness of Diamond Blades in the Turning of Aluminium Composites

Effectiveness of Diamond Blades in the Turning of Aluminium Composites

Cryogenic Treatment Analysis in WEDM of Al2024/Al2O3/W Composite

Kompozit Malzemelerin Tornalanması Esnasında Oluşan Kesme Kuvvetlerinin Optimizasyonu

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