Electrochemical machines are precision tools used to machine metals and alloys. They work by applying current to the workpiece, creating a chemical reaction that removes material from the workpiece surface. The machine consists of an electrode and a workpiece placed in an electrolytic solution. When an electric current is passed through the solution, the solution reacts with the workpiece, removing material from the workpiece surface. The electrode is used to conduct the current flow through the workpiece and promote the chemical reaction. Electrochemical machines are used in many industries, particularly in the manufacture of precision components for the aerospace, medical and automotive industries. They can create complex shapes and contours that are difficult to produce using conventional manufacturing technologies. Electrochemical machines are also useful for repairing tools and molds, as they can remove material from the damaged surface without damaging the tool or mold.