Search Results

The use of natural fibers composite matrix is tremendously increasing day to day and acting as a replacement product to many conventional materials in the automobile and aviation sectors. It was preferred due to its bio-degradability, weight to strength ratio, easy availability, and lightweight. The crisscrossed woven jute and raw-sisal fibers had drawn the superior properties in the advanced developing field of the composite. The main purpose of this project is to evaluate the mechanical properties and the influence of raw sisal fiber with woven Jute/Epoxy composite by varying the size of raw sisal in three variable lengths such as 10mm, 20mm, and 30mm respectively. The composite laminates were fabricated by the conventional hand-layer technique. The mechanical characterization like the tensile test, flexural test, and hardness, was estimated on the fabricated jute/sisal hybrid composite material.

In this developing world, the need for lightweight and high strength materials is increasing in various industries. As a result of the above, the importance of natural fiber is also increasing to satisfy the industrial need. In manufacturing industries in order to assembly the engineering components the drilling is one of the important operations. The main objective of this research is to determine the mechanical properties and drilling efficiency of natural fiber composite. Sisal/flax as a natural fiber, the copper foil of thickness 0.025mm as structural reinforcement and epoxy resin as a matrix was used for making composite. The hand layup technique was used for the fabrication of the composite. Two different types of the composite were fabricated such as C1 (Sisal and flax fiber, embedded with punched copper foil (Ø5mm), 20mm apart and 90° to each other) and C2 (Sisal and flax fiber embedded with a punched copper foil of (Ø4mm), 20mm apart and 45° to each other).

In the last decade, there was growing interest in the use of green composites because of their environment-friendly nature, improvement in mechanical & chemical properties, better processability, and low cost. In this work, short sisal fiber was reinforced in a polycaprolactone (PCL) matrix and four different degradable green composites were developed with different weight fractions. Experimental studies were conducted as per standard to find the mechanical properties of PCL based composites. The data obtained shows that there is a 22% increase in tensile strength, 18% increase in hardness and 100% increase in impact strength for the specimen with 10% sisal fiber compared to neat PCL specimen. The mechanical property reduces when the fiber content is increased to 15%. These PCL based composites shall find applications in the packaging industry and consumer goods that have less service temperature.

Various research regarding new types of fabrication and modifications of Aluminium alloy to improve the existing properties are going on. The wide range application of aluminium alloy is in aerospace and Automobile Industries. The demand for this material improved by mechanical properties with little to zero increment in weight. The current work is based on the fabrication of hybrid aluminium metal matrix composites with the addition of TiC (Titanium Carbide) and Al2O3 (Aluminium Oxide) reinforcement particle using stir casting technique. Three types of hybrid composite samples were prepared based on the weight percentage 5% Al2O3+0% TiC (sample-1), 8% Al2O3 + 12% TiC (sample-2), 20% Al2O3+15% TiC (sample-3). The objective of the study is to analyze the mechanical and corrosion properties of the hybrid composite with the influence of the reinforcement and varying the weight fraction of the particles.

Aluminium metal matrix composite are broadly used in various field like aerospace, marine and automobile application. The application of composites necessitates joining process and its difficult due to different materials. To address the considering difficulties the present study is, Cr2O3 was reinforced in Al 6061 matrix in 2 % to 6 % in the incremental step of 2 %. The stir casting method was used to fabricate the composites with 300 rpm stirring speed and the stirring time duration was 3 min throughout the fabrication process. The H13 tool is used for prepared friction stir welded (FSW) joints and tool having 6.7 mm pin diameter and 6 mm pin height. The fabrication process is conducted by 500 rpm and 700 rpm tool rotational speed with 50 mm/min and 60 mm/min welding speed receptively. The atmospheric environmental condition was preferred to perform friction stir welding.