Общий каталог SGS 2018 - страница 237
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Drilling Operations
SGS COOLANT RECOMMENDATIONSSGS COOLANT RECOMMENDATIONS Coolant Recommendations
- Coolant works to mobilize chips away from the RECOMMENDED COOLANT PRESSURERECOMMENDED COOLANT PRESSURE
| cut zone, reduce the heat created during the | 1600 | BY DIAMETER – psiBY DIAMETER – psi | |
| cutting process and minimize friction. | 1600 | ||
| 1400 | 1400 |
It is important to optimize the coolant pressure 1200 1200
and position in order to gain the full benefits 1000 coolant offers the cutting process. 1000 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 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | |
| 3 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 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 PRESSURERECOMMENDED COOLANT PRESSURE leads to thermal stressing of the material and
| the formation of “microcracks.” | 120 | BY DIAMETER – barBY DIAMETER – bar | |
| 120 |
| ◾ Proper cleanliness and filtration of coolants is | 100 | 100 |
| important in order for the coolant to maintain | ||
| its beneficial properties, and also to avoid a | 80 | 80 |
| reduction in coolant pressure or the possibility | ||
| of clogging the coolant channels in coolant | 60 | 60 |
| through drills. | 40 | |
| 40 | ||
| 20 | 20 | |
| 0 | 0 |
3 3 4 4 6 6 8 8 10 1012 1214 1416 1618 18
DRILL DIAMETER (mm)DRILL DIAMETER (mm)
LARGE TIP – LOW VELOCITYLARGE TIP – LOW VELOCITY SMALL TIP – HIGH VELOCITYSMALL TIP – HIGH VELOCITY NO COVERAGE AT MAXIMUM DEPTHNO COVERAGE AT MAXIMUM DEPTH COMPLETE COVERAGECOMPLETE 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.