Year: 2023
Type: article
Abstract: In this work, kenaf-reinforced polymer composites were drilled using microwave drilling technique. Microwave drilling utilizes microwave radiation at 2.45 GHz, which is concentrated in a narrow region using a thin concentrator. The 2 mm diameter cylindrical graphite and stainless steel (SS) were chosen as tools (concentrators)having sharp conical tips. Produced holes were characterized for heat-affected zone, hole circularity, and diametral overcut. The SS concentratordrilled holes recorded more heat-affected zone than those drilled using graphite concentrator with the values of 44.16 mm2 and 33.20 mm2, respectively. Circularity of holes drilled using graphite concentrator was 15.32% higher than the circularity of holes drilled using SS concentrator. Further, graphite-drilled holes recorded 1.001 mm of diametral overcut which was 59.83% lower than that in SS-drilled holes. Therefore, graphite is recommended as a concentrator when kenaf-reinforced epoxy composites are to be drilled using microwave drilling.
Authors: Rampal ., Sunny Zafar
Institution: Indian Institute of Technology Mandi
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4388300007