Evaluation of Aluminium Based Metal Matrix Composites of AA7068/Tic. Mechanical, Tribological & Machining Characteristics of Composites

      Аннотация: In this modern era composite materials have been widely used in variety of engineering applications due to its superior properties as compared with the conventional materials. The advantages include weight-to-strength ratio, high fracture, toughness and excellent thermal and corrosion resistance. Through the technology of composite manufacturing are advanced, near-net-shaped components with the required surface finish quality can be achieved only by machining. In this investigation, a comprehensive analysis was carried out to study the mechanical and tribological behaviour of AA7068/TiC metal matrix composites. Final attempt was carried out to study the influence of wt.% of TiC, cutting speed, feed and depth of cut on output responses like surface roughness, cutting force, material removal rate and specific energy consumption. They were measured during machining of AA7068/TiC MMCs. Three different types of cutting tool inserts were used in this investigation. Experiments have been planned and conducted according to CCD design in design of experiments. This investigation helps to increase the utility for machining economics and also improves the product quality to a greater extent.

Ключевые слова: metal matrix composites, AA7068/TiC MMCs, Stir Casting Technique, SEM, EDAX, X-RD, Mechanical Characterization, Tribological behaviour, wear, Wear Rate, Pin-On-Disc, Design of Experiments, Central Composite Design, Machining, Turning Operation, Cutting Tool Inserts, Simulation & Modeling, particle swarm optimization, Grey Relational Analysis