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Photochemical machining of engineering materials

Cakir O.

Archives of Materials Science

2007

Vol. 28, nr 1-4

15-19

Photochemical machining (PCM) is one of the important nontraditional machining processes in which photographic and chemical etching techniques are employed. The workpiece material is shaped by using a strong chemical solution to dissolve surface of the workpiece that was selectively exposed to machine areas using a photographic technique. The application of photochemical machining has increased extensively in the electronics, precision engineering, medical and decorative industries as well as in the microcomponentproduction industry. The present study is aimed to provide information on the application of PCM. The selection of etching parameters such as etchants for engineering materials, chemical additives into main etchants and etching temperature on the different machining outputs will be discussed. Also, the influences of environmental legislations on the machining process are examined and the future directions are considered.