Diamond Coating (SUMIDIA) Drills for CFRP SDC Series (External Coolant Supply)
Composite CFRP
Aluminum Alloy
■ General Features Diamond Coating SDC (SUMIDIA) drills for carbon fiber reinforced polymers (CFRP) employ Sumitomo's proprietary multi-step point angle. Combined with a diamond coating, this technology improves machined surface quality and extends tool life. ■ Product Range
Diameter Range (mm)
Point Angle
Hole Depth (L/D)
Cat. No.
ø2.0 to ø4.0 90°
MDS □□□□□ SDC3
up to 3
ø4.851 to ø10.0 130°
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■ Features and Applications ● Excellent Drilled-Hole Quality
Tool Life Comparison
● Sharp cutting edge shape reduces delamination of fiber layers and minimizes burrs. ● Continuously changing point angle, disperses the load placed on the cutting edge and preventing breakage. ● Long Tool Life ● Utilizing a high-strength diamond coating with excellent adhesion, delivering high quality and long tool life.
Effects of Diamond Coating
SDC (After Drilling 600 Holes) Competitor's Product (After Drilling 50 Holes)
Margin
■ Performance
Flank
Comparison of Machined Surface Quality
Excellent machined surface quality Prevents delamination and burrs
Rake Face
No delamination Minimal flank wear
Large delamination from cutting edge to flank
SDC Competitor's Product A
Competitor's Product B
Competitor's Product C
Stable diamond layer adhesion prevents delamination. Excellent wear resistance enables high-quality drilling with long tool life.
Entrance
SDC Type Competitor A's Diamond Coated Drill Carbide Drill
Exit
0
100
200
300
400
500
600
(Hole)
Tool: SUMIDIA COAT Drill SDC ø6.35 Part Material: CFRP Cutting Conditions: n =6,000 SFM, f =0.004 IPR H =91.86" (through), dry
Tool: SUMIDIA COAT Drill ø6.35 Part Material: CFRP Cutting Conditions: n =6,000 SFM, f =0.003 IPR, H =49.2" (through), dry
SUMIDIA Coat
*Refer to N74 for the tolerance of h6 and h8
Fig. 1 (Diameter ø2.0 to 4.0mm)
Fig. 2 (Diameter ø4.851 to 10.0mm)
LU
LU
PL
PL
LCF
LCF
OAL
OAL
Diameter ø2.0 to 10.0mm
Dimensions ( mm )
Recommended Cutting Conditions ( v c : Cutting Speed (m/min), f : Feed Rate (mm/rev))
Dia. DC
Hole Depth (L/D)
Effective Length LU
Flute Length LCF
Overall Length OAL
Tip PL
Shank Dia. DCON
Cat. No.
Fig
Stacked Sheets of CFRP and Aluminum Alloys (Dry Machining)
Dia. DC ( mm )
CFRP Only (Dry Machining)
MDS02000SDC3 MDS02489SDC3 MDS03000SDC3 MDS03300SDC3 MDS04000SDC3 MDS04851SDC3 MDS05000SDC3 MDS05600SDC3 MDS06000SDC3 MDS06375SDC3 MDS07000SDC3 MDS07938SDC3 MDS08000SDC3 MDS09000SDC3 MDS09550SDC3 MDS10000SDC3
3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3
10.50 13.5 50.0 1.0 2.0 1 12.47 16.2 50.2 1.2 2.489 1 14.5 19.0 50.5 1.5 3.0 1 16.8 21.7 61.7 1.7 3.300 1 18.5 24.5 62.0 2.0 4.0 1 21.3 28.6 77.1 1.1 4.851 2 21.2 28.7 77.2 1.2 5.0 2 22.9 31.3 82.3 1.3 5.6 2 22.4 31.4 82.4 1.4 6.0 2 24.4 34.0 84.5 1.5 6.375 2
2.0
2.489
80 - 150
40 - 80
v c
3.0
ø 6.0
0.05 - 0.10
0.03 - 0.10
f
3.300
80 - 120
40 - 80
v c
4.0
ø 12.0
0.05 - 0.10
0.03 - 0.10
f
4.851
5.0 5.6 6.0
Min. - Max .
6.375
2
7.0
26.1 36.6 84.6 1.6 7.0
30.0 41.9 91.9 1.9 7.938 2 29.9 41.9 91.9 1.9 8.0 2 33.6 47.1 100.1 2.1 9.0 2 37.9 52.2 107.2 2.2 9.550 2 37.3 52.3 107.3 2.3 10.0 2
7.938
8.0 9.0
9.550
10.0
: Worldwide Warehouse Item
Grade: DCX20
J89
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