2. Chemical Cutting Process

Chemical machining (CM) is an advanced machining technique that is used to selectively remove material from workpiece using strong chemical reagent known as etchant. The corrosion process is utilised to remove material from the needed area of the workpiece. The material removal in chemical machining process takes place by microscopic electrochemical reaction or chemical dissolution of the material to be removed. Chemical milling and photochemical milling processes are the two important chemical machining processes that are presented in this chapter. The mechanism of operation of these chemical machining processes is explained. Some of the research progress in these processes is also presented. The chapter ends with a brief summary.