In this paper, the study of dimples on the broached surface ofnickel based heat-resistant alloy GH 37 was described. Observationsand tests of the dimples have been done by applying the followinginstruments and methods viz: metallographic microscope, binocularmicroscope, profilograne, scanning electron microscope and electronicprobe energy spectrum analysis etc. From the analysis of the resultsof observations and tests several conclusions have been drawn. It isrevealed that the dimples emerge in the cutting ...