The usage of powder metallurgy aluminium compacts in lieu of ferrous components in automotives helps to lower vehicle weight. The major drawback in the commercially available press sintered aluminium alloy is porosity which is mainly dependent on the powder metallurgical process parameters such as compaction pressure, sintering temperature and cooling rate after sintering. In this paper the eff...

Sixty patients with mallet finger deformity were randomly treated with either a Stack or a custom-made padded aluminium alloy malleable finger splint. Both splints were equally effective in correcting the deformity but the aluminium alloy splint was able to be fitted to a wider variety of finger shapes and sizes and caused significantly fewer skin complications.

Friction welding is widely used in various industries. In friction welding, heat is generated by conversion of mechanical energy into thermal energy at the interface the work pieces during pin rotation under pressure. A three-dimensional thermo mechanical simulation of friction stir welding (FSW) processes is carried out for Aluminium Alloys of 6061and 7050 where the simulation results are comp...

Aluminium base alloy (Al-Cu-Si) was reinforced with silicon carbide (SiC) particles, in various percentage compositions from 0-20 wt%. Silicon carbide particle size of 20µm was selected. The molten slurry of SiC reinforced base aluminium metal was casted through green and dry sand casting methods and solidification process was carried out under ambient conditions. A selected population...

In this study, the effects of Yb: YAG laser welding parameters on microstructure and mechanical properties AA6061-T4 joints were analysed. Samples without any defects such as porosity, melt pool collapse, hot cracking produced with different parameters. Energetic processing had a significant influence fusion zone (FZ) heat-affected (HAZ) dimensions, in addition to local global properties. The w...

Direct metal laser sintering (DMLS) is a selective laser melting (SLM) manufacturing process that can produce near net shape parts from metallic powders. A range of materials are suitable for SLM; they include various metals such as titanium, steel, aluminium, and cobalt-chrome alloys. This paper forms part of a research drive that aims to evaluate the material performance of the SLM-manufactur...

Complex aluminium alloy components fabricated by powder metallurgy (P/M) offer the promise of a low cost and high strength-to-weight ratio, which meets the demands of the automotive sector. This paper describes the die compaction and sintering response of an atomised Al-6061 alloy powder containing Mg and Si produced by rapid solidification. A design of experiments is used involving three level...

Metal cutting processes are important due to increased consumer demands for quality metal cutting related products (more precise tolerances and better product surface roughness) that has driven the metal cutting industry to continuously improve quality control of metal cutting processes. This paper presents optimum surface roughness by using milling mould aluminium alloys (AA6061-T6) with Respo...

Abstract The study is to investigate the physical, mechanical, and tribological properties of Al6063 alloy reinforced by Silicon Nitride (Si 3 N 4 ) & compound Copper Nitrate (CuN 2 O 6 processed via Powder Metallurgy (PM) Techniques. Incorporation reinforcement in matrix material ranged from 12% Si a 6-step interval, 6%CuN two-step interval. characterizations were made on PM produced speci...

This study experimentally investigates the influence of adding SiC on microstructure and mechanical properties aluminium alloys welded joints. The particles have been directly added into a zone friction stir welding (FSW) to make (AA6061–AA2024) composites material. Results show that effect refines grain size in by preventing its growth during FSW process. has significant thermomechanical resul...