Общий каталог SGS 2021 - страница 227

Drilling Operations SGS COOLANT RECOMMENDATIONS SGS COOLANT RECOMMENDATIONS Coolant Recommendations ◾ Coolant works to mobilize chips away from the RECOMMENDED COOLANT RECOMMENDED PRESSURE COOLANT PRESSURE cut zone, reduce the heat created during the BY DIAMETER – psi BY DIAMETER – psi 1600 1600 cutting process and minimize friction. 1400 1400 ◾ It is important to optimize the coolant pressure 1200 1200 PRESSURE (psi) PRESSURE (psi) and position in order to gain the full benefits 1000 1000 coolant offers the cutting process. 800 800 ◾ Proper coolant application promotes greater 600 600 operating parameters, greater material removal rates, improved surface finishes, predictable tool 400 400 life, reduced power consumption and reduced 200 200 cycle times. 0 30 34 46 68 8 10 1012 1214 1416 1618 18 ◾ Pressure is important, but more importantly is DRILL DIAMETER (mm) DRILL DIAMETER (mm) consistency of the pressure and application onto the tool; intermittent cooling of carbide RECOMMENDED COOLANT RECOMMENDED PRESSURE COOLANT PRESSURE leads to thermal stressing of the material and BY DIAMETER – bar BY DIAMETER – bar the formation of “microcracks.” 120 120 ◾ Proper cleanliness and filtration of coolants is 100 100 important in order for the coolant to maintain PRESSURE (bar) PRESSURE (bar) its beneficial properties, and also to avoid a 80 80 reduction in coolant pressure or the possibility 60 60 of clogging the coolant channels in coolant through drills. 40 40 20 20 0 0 3 34 46 68 8 10 1012 1214 1416 1618 18 DRILL DIAMETER (mm) DRILL DIAMETER (mm) LARGELARGE TIP – LOW TIP –VELOCITY LOW VELOCITY SMALLSMALL TIP – HIGH TIP –VELOCITY HIGH VELOCITY NO COVERAGE AT MAXIMUM NO COVERAGE DEPTHDEPTH AT MAXIMUM COMPLETE COVERAGE COMPLETE COVERAGE ◾ Reducing the nozzle size helps maximize the cooling benefits of the unique double margin design on the Hi-PerCarb drill by increasing velocity. Aim the nozzles in line with the secondary flute located between the two margins as well as the flute for best results. 227 DRILLS www.kyocera-sgstool.com DRILLS