Machining of Aluminium Metal Matrix Composite: A Review

Bhardwaj, Ajay R.; Vaidya, Am.; Shekhawat, Sanjay P.

doi:10.1016/j.matpr.2020.01.179

Cited by 17 publications

(15 citation statements)

References 23 publications

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“…The literature survey shows that the composites reinforced with continuous fibres are still very difficult to machine [3] and the cutting tool must be harder than the reinforcement. This is why polycrystalline diamond (PCD), which exhibits higher hardness, ensures a longer tool life.…”

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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“…Composite materials are widely used in means of transport, construction, military, and medicine. The widening use of these materials is often limited due to their complexity and high costs related to the wear of cutting tools, as well as the difficulty in obtaining satisfactory product quality, especially surface roughness [1,3,4]. Tools such as polycrystalline diamond, cubic boron nitride, and tungsten carbide are suggested to reduce blade wear.…”

Section: Introductionmentioning

confidence: 99%

“…Tools such as polycrystalline diamond, cubic boron nitride, and tungsten carbide are suggested to reduce blade wear. Many research results show that with the use of polycrystalline diamond or cubic boron nitride blades, a surface with a lower roughness can be obtained then after the use of carbide blades [1,[3][4][5]. Unfortunately, these tools are very expensive and their use is not always possible for economic reasons.…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Influence of the Number of Burnishing Passes on the Geometric Structure of Aluminium Composites Surface

2023

Teh. vjesn.

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The paper presents the results of burnishing tests of composites based on AlSi9Mg aluminum alloy matrix, reinforced with Saffil ceramic fibers and silicon carbide particles. The tested material was produced at the Wroclaw University of Science and Technology. The tested materials were turned and then ball burnished. After each subsequent burnishing pass, the surfaces were measured by contact and the roughness parameters were calculated. It has been found that it is possible to obtain the Sa roughness of composites thanks to burnishing at the level of 0.1 µm. The paper shows that for each material there is an optimal and limit number of passes, which guarantees the lowest roughness for a fiber-reinforced composite these are 4 passes, and for a composite reinforced with SiC particles 5 passes. The research showed that the reduction of the roughness peaks of composites after burnishing is definitely greater than that of the valleys. The research presented in the article broadens the knowledge of aluminum composites burnishing.

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“…Since the tool is in alternating contact with the soft matrix and the reinforcement material, it is subject to variable loads and, thus, fatigue wear. It may also cause damage to the workpiece [4,5]. Therefore, the quality control of composite products is very important.…”

Section: Introductionmentioning

confidence: 99%