XXX R003 R023
VERSATILE SOLID CARBIDE DRILLS WITH TIN TIP
SUCCESS STORIES – R003 & R023
Dormer Pramet solution: R0031/4 Machining data: v c f n a p
Segment:
Power generation industry (Mexico) Assembly for electrical harnesses
Component:
Material: Coolant:
SAE 4140 / 1.7225 / 42CrMo4 (alloy steel, 190 HB)
Yes, external, synthetic emulsion
Application:
Haas CNC machine drilling with pecking, through holes Currently best competing drill has a high-end coating and a double margin, described to be a high performance drill.
177 (54)
.008 (0.2)
.500 (12.7)
Previous results:
Result with R003: Customer noticed lower thrust force when compared to other competing tools. R003 also provides comparable tool life and good hole finish, simply better cost effectiveness!
Dormer Pramet solution: R0036.8 Machining data:
Segment:
Agriculture machinery sub-contractor (India)
Component:
Cast iron flywheel for tractor FG260 / GG25 (180 – 220 HB)
Material: Coolant:
Dry, no coolant
v c
f n
a p
Application:
Vertical CNC drilling, through holes without pecking Competitor drill had abnormal wear, usually after 260 holes the drill couldn’t be used any further, or sometimes prematurely broke.
84 (25.6)
.005 (0.126)
.465 (30)
Previous results:
Result with R003: Dormer with TiN tip had better tool life compared to all competitors, finishing tests without breaking or with excessive wear after 264 holes, while using the same cutting parameters!
Dormer Pramet solution: R0031/4 Machining data:
Segment:
Powder metal parts producer (Canada)
Component:
Fixture plates
Material:
SAE 4340 / 1.6582 / 34CrNiMo6 (quenched alloy steel, 53 HRC)
v c
f n
a p
Coolant:
Yes, external, water soluble oil emulsion (8%) Manually driven pillar drill machine, locating dowel holes Competing drill needs lot of manual pressure to penetrate through the hardened material, it took 30 seconds to make the hole. The drill is worn out after 1 hole.
95 (29)
.003 (0.08)
.299 (7.6)
Application:
Previous results:
Result with R003: Dormer drill is able to penetrate the material in just 12 seconds with radically lower drilling effort, and it’s still in good shape to continue on another hole.
4
v c = cutting speed (ft/min) (m/min), f n = feed per revolution (in/rev) (mm/rev) , a p = axial depth of cut (in) (mm)
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