Hay use h.s.s./carbide round to fit in machine collet chuck normal is 6.0 mm or 1/4"
grind some length to a cone of 30deg. to 20 deg.to match the Ø like pencil then a length to 1/2 Ø ie 3.0mm or 1/8"(longer than the depth of engraving) releve cone by grinding to create tool form till the half ground edge.(good finish required without any burning of tool material) now Hold the tool on Ø in collet of machine spindle.
& start using the same with good cutting parametres like drilling/milling.THIS IS KNOWN AS SINGLE LIP ENGRAVING TOOL)
T!!!!!!!!R!!!!!!!!!!Y!!!!!!!! NOW.
THANK YOU
PRADEEP R. KHARE
INDIA |