AcomparativeAnalysisofChangeinTensileStrengthofABSMaterialofFDMforthe long-term performance and its durability.

This paper presents a comparative analysis of the long-term performance and durability of Acrylonitrile Butadiene Styrene (ABS) material used in Fused Deposition Modeling (FDM) 3D printing technology over a period of six month. ABS is a widely used thermoplastic in FDM 3D printing for different printing temperature of 240°C to 260°C with the interval of ten degrees due to its favorable mechanical properties. Understanding how the tensile strength of ABS material changes over time is crucial for assessing its long-term performance in various applications. The experimental evaluation involved printing of ABS specimens with ASTM D638- 1 standards using FDM printer and comparison of tensile strength at a specified time period difference of six months. ABS is most popular material used to print components because of its favorable mechanical property. Here the specimen with 3 different temperature were printed and tensile test was performed to evaluated its elongation at maximum load and Ultimate tensile load of the specimen. Test 1 and Test 2 where performed at the interval of six month and it has been observed that there is decrease in Ultimate tensile load. The maximum load bearing capacity of ABS specimen is 953N at printing temperature of 250°C in Test 1 and maximum load bearing capacity of ABS specimen is 906 N at printing temperature of 250°C in Test 2. This analysis shows the reduction in maximum load bearing capacity by .05%. The Ultimate tensile load is 225N in Test 1 and 220N in Test 2. This analysis shows that there is reduction in Ultimate tensile load by .02 percent. The reason for the reduction in the strength is natural ageing processes where molecular chains can break down due to oxidation, leading to a decrease in mechanical strength. As observed there is no much change in the surface roughness of the specimen.