Общий каталог SGS 2018 - страница 237

Drilling Operations SGS CSOGOSLCAONOTLRAENCTORMEMCOENMDMAETNIODNASTIONS Coolant Recommendations ◾ Coolant works to mobilize chips away from the RECOMRMECEONMDEMDECNODOELDACNOTOPLRAENSTSPURREESSURE cut zone, reduce the heat created during the 1600 1600 BY DIABMYEDTIEARM–EpTsEiR – psi cutting process and minimize friction. 1400 1400 ◾ It is important to optimize the coolant pressure PRESSURE (psi) 1200 1200 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 400 rates, improved surface finishes, predictable tool 400 life, reduced power consumption and reduced 200 200 cycle times. 0 30 3 4 46 68 8 10 1012 1214 1416 1618 18 ◾ Pressure is important, but more importantly is DRILL DDIRAIMLLEDTIEARM(mETmE)R (mm) consistency of the pressure and application onto the tool; intermittent cooling of carbide RECOMRMECEONMDEMDECNODOELDACNOTOPLRAENSTSPURREESSURE leads to thermal stressing of the material and BY DIABMYEDTIEARM–EbTaErR – 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) 80PRESSURE (bar) its beneficial properties, and also to avoid a 80 reduction in coolant pressure or the possibility 60 of clogging the coolant channels in coolant 60 through drills. 40 40 20 20 0 30 4 46 68 8 10 1012 1214 1416 1618 3 18 DRILL DDIRAIMLLEDTIEARM(mETmE)R (mm) LARGELTAIRPG–ELTOIWP –VLEOLOWCVITEYLOCITY SMALLSTMIPAL–LHTIIGPH–VHEILGOHCVITEYLOCITY NO COVNEORCAOGVEEARTAMGEAAXTIMMUAMXIDMEUPMTHDEPTH COMPLCEOTME PCLOEVTEERCAOGVEERAGE ◾ 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. www.kyoceraD-sRgILsLtoSol.com DRILLS 237