Investigation on Surface Roughness of Inconel 718 in Photochemical Machining

Figure 10

Microstructures of photochemically machined Inconel 718. (a) Before machining (b) at 45°C; after machining (c) at 50°C; after machining (d) at 55°C; after machining (etchant concentration: 600 g/L and etching time: 40 minute).

(a)

(b)

(c)

(d)