Page 14 - YG 2019

(Reference page
CASE STUDY DREAM DRILLS-MQL TYPE (Reference page CASE STUDY DREAM DRILLS for HIGH HARDENED STEELS : p.161 ~ p.167)
: p.143 ~ p.160)
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FEATURES OF DREAM DRILLS-MQL TYPE FEATURES OF DREAM DRILLS F H HARDENED STEELS

- Flute Shape and Point Shape allowing better chip evacuation in deep hole drilling - Low Helix Angle to maximize tools' rigidity.
- Excellent Coating and Surface Treatment for better performance and chip evacuation - Special Point Thinning to improve chip evacuation.
- Excellent Coating and Surface Treatment for improved surface and better chip evacuation.

TEST RESULT AGAINST COMPETITOR's DRILLS
TEST RESULT AGAINST COMPETITOR's DRILLS

TEST REPORT

1200
CUTTING CONDITION
- Tools : DREAM DRILLS-MQL TYPE
1000 CUTTING CONDITION
(20×D)
- Size : Ø6×Ø6×138×193 - Tools : Dream Drills
800 - Work Material : •AISI : 1045 for High Hardened Steels
Drilling Holes 600 •JIS : S45C(HRc25) - Size : Ø10×Ø10×63×111

- Work Material : •AISI : H13
•DIN : C45
400 - R.P.M : 3,528 rev./min. •JIS : SKD11(HRc60)
•DIN : X155CrV-Mo12-1
- SFM : 218 ft/min.
- Feed : .0075 inch/rev. - R.P.M :380 rev./min.
200 - SFM : 39 ft/min.
- Drilling Depth : 3.15˝ The graph stated to compare the mean value
- Coolant : Oil Mist (MQL Techniques) of final wear land for the test product - Feed : .0016 inch/rev.
0 - Drilling Depth : .98˝ (2.5D)
- Coolent : Wet Cut
YG-1 Competitor A Competitor B

YG-1 (After Drilling 1,000 Holes)
YG-1 (After Drilling 100 Holes)

COMPETITOR A (After Drilling 546 Holes)
COMPETITOR A (After Drilling 40 Holes)