Experimental investigations and multiobjective optimization on electrochemical micromachining of hastelloy c276

Abstract

Micro-holes have potential applications in a wide range of industries such as industrial, automobile, medical, bio-medical, and Micro-Electrical Mechanical Systems (MEMS). Micro-holes and micro-slots are very challenging to produce with non-traditional machining techniques. Electrochemical Micro machine (ECMM) is an alternative for effective machining of micro products, in which controlled material removal happens through anodic dissolution to form intricate shapes and 3D geometries in materials which are in the range of microns say 1and#956;m 999and#956;m. ECMM is mostly used in the production of micro holes, micro slots and micro channels. Hastelloy a nickel-based super alloy, is one among such alloy materials that finds widespread use in industries such as automotive, aerospace, and biomedical, due to its excellent corrosion resistance, unique strength, and machining capabilities. Hastelloy C276, faces issues while machining, using both traditional and non-traditional methods. Hastelloy is a wrought corrosion-resistant alloy. Development of a safe and eco-friendly ECMM has been the subject of concern because of the electrochemical process between the electrolytes used and the basic process. ECMM is also capable of dealing with chemically resistant materials such as nickel-based alloys, copper alloys, super alloys and Steel based alloys. A common electrolyte is not available for all materials; therefore, different types of electrolytes are utilized, with variations tailored to the specific material. Currently, studies on the electrolytes to make it as sustainable and eco-friendly have become a major concern. The addition of Nano powders to the electrolytes may be of a greater study of importance in terms of conductivity and material dissolution. newline