The Effect of Deep Cryogenic treatment on the Roughness of Hastelloy C22 Super Alloy in electrical discharge machining
Engin Nas Sitki AKINCIOGLU Hasan GÖKKAYA Gulsah AKINCIOGLU
AbstractIn this study, Deep cryogenically treated (-145 ᵒC) (H0) and untreated Hastelloy C22 Super Alloy (H1) were etched with a copper electrode on an electro erosion discharge. The parameters used in the experimental study were determined as three different durations (10, 20 and 30 μs), waiting time (5, 10 and 15 μs) and discharge currents (5, 10 and 15 amperes). As a result of the work done, the lowest surface roughness value was measured as 2.20 μm in 20 μs sweep time, 10 μs waiting time and 10 amperes current.