The investigation of drilling an aluminium matrix composite reinforced with iron hollow spheres

11th Hungarian Conference on Materials Science

Horváth, R.^1 ; Nagyné Halász, E.^1 ; Oláh, F.^1

Óbuda University, Donát Bánki Faculty of Mechanical and Safety Engineering, Institute of Materials and Manufacturing Sciences, Budapest, Hungary^1

关键词: Aluminium matrix;    Aluminium matrix composites;    Cutting parameters;    Cutting process;    Finishing technology;    Full factorial design;    Internal cooling;    Joint property;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/426/1/012019/pdf
DOI  :  10.1088/1757-899X/426/1/012019

来源: IOP

【 摘 要 】

Since composites have numerous advantages, they have a prominent role in manufacturing. That is the reason why they might substitute conventionally used materials. Nowadays cutting processes are among the most commonly used finishing technologies. In the case of composites the cutting tools have to meet particular requirements. This paper represents the machinability examinations of a special type of composites - iron hollow sphere-filled aluminium alloy matrix (AlSi12) - during drilling. The input cutting parameters, the feed (f, mm) and the cutting speed (vc, m/min), were varied at a wide range according to a design of experiment (a full factorial design was used). Drilling studies were carried out under dry conditions and with internal cooling lubrication as well. The axial (feed) force (Ff, N) was measured. Based on the experimental results, the different drilling conditions were compared. In addition, a proposal is made for cutting this kind of material. The joint properties of the aluminium matrix and the iron hollow spheres during cutting were examined by scanning electron microscopy.