Tag : Copper

New Delhi (The Hawk): Researchers have developed a novel bi-metallic joining process to create a bimetallic composite made from copper and steel, which has high thermal and electrical conductivity for engineering applications, such as heat exchangers, hydraulic pump components, cooling staves, guide plates, and hot-work tooling applications. In the world of technological advancements, high-performing and multifunctional structures and components are in great demand. To cater to this demand, the development of bimetallic structures has gained significant attention. These structures offer a unique combination of individual material properties, making them highly customizable for a range of applications. Research in this area has significant implications for various engineering applications where the thermal conductivity and strength of the components play a critical role. One such bimetallic composite, made from copper and steel, has high thermal and electrical conductivity, exceptional corrosion resistance, and mechanical properties. However, welding copper and steel together can be challenging due to the differences in their melting points, thermal conductivity, and thermal expansion properties. This has made it difficult to join copper and stainless-steel bimetallic structures without defects. To address this challenge, researchers at the International Advanced Research Centre for Powder Metallurgy and New Materials (ARCI), an autonomous R&D Centre of the Department of Science and Technology (DST), Govt. of India, have developed a novel bi-metallic joining process using a technique called laser powder bed fusion (L-PBF) or selective laser melting (SLM) technique of metal 3D printing. This technique involves layer deposition by met ...