Effectiveness of Diamond Blades in the Turning of Aluminium Composites

• Autorzy: Karolczak Paweł , Kołodziej Marek , Kowalski Maciej

Identyfikatory

DOI

10.12913/22998624/127436

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

composite materials; superhard blade; surface roughness; cutting forces; chips

PL

materiały kompozytowe; super twarde ostrze; chropowatość powierzchni; siły skrawania; żeton

• Wydawca: Lublin University of Technology ; Polish Society of Ecological Engineering (PTIE), Branch of PTIE in Lublin
• Czasopismo: Advances in Science and Technology. Research Journal
• Rocznik: 2020
• Tom: Vol. 14, no 4
• Strony: 262--272
• Opis fizyczny: Bibliogr. 26 poz., fig., tab.

Twórcy

autor

Karolczak Paweł

• Department of Machine Tools and Mechanical Engineering Technologies, Faculty of Mechanical Engineering, Wroclaw University of Technology and Science, Łukasiewicza 5, 50-371 Wrocław, Poland

autor

Kołodziej Marek

• Department of Machine Tools and Mechanical Engineering Technologies, Faculty of Mechanical Engineering, Wroclaw University of Technology and Science, Łukasiewicza 5, 50-371 Wrocław, Poland

autor

Kowalski Maciej

• Department of Machine Tools and Mechanical Engineering Technologies, Faculty of Mechanical Engineering, Wroclaw University of Technology and Science, Łukasiewicza 5, 50-371 Wrocław, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).