A Brand ADO-MICRO Advanced Performance Carbide Micro Drills
List 6503 - A Brand ADO-MICRO: 12D List 6504 - A Brand ADO-MICRO: 20D List 6505 - A Brand ADO-MICRO: 30D
General Drilling Operations
400 Series Ferritic Stainless Steels Martensitic Stainless Steels
High Heat Material
Carbon Steels, Mild Steels 1010, 1050, 12L14
300 Series Austenitic Stainless Steels
Work Material Drilling Speed
Alloy Steels 4140, 4130
Ni-Base Material, Inconel
Ti-Alloy, Ti-6Al-4V
65-195 SFM
65-195 SFM
65-195 SFM
80-145 SFM
130-195 SFM
15-50 SFM
Drill Dia. Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
mm 1 12,700 0.0004-0.0012 12,700 0.0008-0.0016 9,500 0.0004-0.0012 11,100 0.0004-0.0012 15,900 0.0006-0.001 3,200 0.0002-0.0008 1.5 8,500 0.0006-0.0018 8,500 0.0012-0.0024 6,400 0.0006-0.0018 7,400 0.0006-0.0018 10,600 0.001-0.0015 2,100 0.0003-0.0012 2 6,400 0.0008-0.0024 6,400 0.0016-0.0031 4,800 0.0008-0.0024 5,600 0.0008-0.0024 8,000 0.0012-0.002 1,600 0.0004-0.0016
General Drilling Operations Work Material Cast Iron
Special Alloy Steels, Hardened Steels
Aluminum Alloy 5025,7075
Ductile Cast Iron
Cast Aluminum
Hardness
26-30 HRC
30-34 HRC 65-100 SFM
Drilling Speed
130-195 SFM 100-165 SFM
65-195 SFM
100-230 SFM 100-130 SFM
Drill Dia. Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
Speed RPM
Feed IPR
mm 1
15,900 0.0008-0.0016 12,700 0.0008-0.0016 12,700 0.0004-0.0012 15,900 0.0008-0.0024 11,100 0.0008-0.0016 8,000 0.0008-0.0016 1.5 10,600 0.0012-0.0024 8,500 0.0012-0.0024 8,500 0.0006-0.0018 10,600 0.0012-0.0035 7,400 0.0012-0.0024 5,300 0.0012-0.0024 2 8,000 0.0016-0.0031 6,400 0.0016-0.0031 6,400 0.0008-0.0024 8,000 0.0016-0.0047 5,600 0.0016-0.0031 4,000 0.0016-0.0031 Note: 1. This cutting condition chart is based on the usage of water-soluble coolant and internal supply . 2. Please use quality water-soluble coolant with a dilution factor of approximately 20 times, e.g. 5% concentration. 3. Please use a precision filter (rating of 3µm to 5µm) to prevent the oil holes from clogging. 6. For work materials with poor chip evacuation, please perform step drilling as required. 7. For holes deeper than 12D, please use a 2D type drill to prepare a pilot hole prior to processing.
8. Please always use the appropriate cutting fluid recommended by the cutting fluid manufacturer in the machining of magnesium alloys. Be cautious with the cutting chips as they are highly flammable and may pose a serious fire risk if not properly handled.
4. Although the recommended coolant pressure is 3 MPa or more, please adjust accordingly if the level of flow volume is unsatisfactory due to the type and concentration of cutting fluid used. 5. For accurate mounting, acceptable deflection of the body cylindrical part at the shank end should be less than 0.002µm , as shown in the illustrated figure.
Deep Hold Drilling Proceedures ADO-MICRO 12D/20D/30D
1. Make a Pilot Hole with the ADO-MICRO 2D. The ADO-MICRO 2D (140° point angle) is the recommended polio hole drills of the ADO-MICRO 12D/20D/30D
ADO-MICRO 12D/20D/30D (DC) DC+[+0.01/0]
When working on a curved surface, use the ADF (carbide at drill) to counterbore a at surface before drilling a pilot hole.
1×DC~2×DC
3. Increase the revolution to the designated speed and start drilling.
2. Insert the long drill into a pilot hole with a low revolution of 500 to 1,000 RPM.
4. After drilling, move the drill away from the bottom of the hole; then reduce its speed to 500 to 1,000 RPM while continuing to retract.
DC
315
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Drilling Technical
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