SPD & NPD Drill NEW INDEXABLE DRILL FOR HOLE MAKING. No: Features

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1 No:1-2 NEW INDEXABLE DRILL FOR HOLE MAKING SPD & NPD Drill Features Excellent chip evacuation. Special surface treatment. 4 corner use insert, same insert used for both inner & outter position cutting edge. Various C/B & grade for wide application range. SPDrill : Ø 13 ~ Ø 22(mm) NPDrill : Ø 23 ~ Ø (mm)

2 Characteristics of SPD & NPD 1. Excellent chip evacuation Wide chip pocket area. 20% expanded chip pocket area. Different pocket area applied along the shank of drill. Good chip evacuation at high speed. Rigid shank. 2. Special surface treatment SPDrill(Superior Piercing Drill) NPDrill(New Piercing Drill) Diameter : 13 ~ 22(mm) Diameter : 23 ~ (mm) Excellent abrasive wear resistance accomplished due to the special surface treatment. Prolonged tool life. Strong and luxury image of metallic color. 2

3 Characteristics of SPD & NPD 3. 4 corner use insert SPMT for SPDrill SPDrill inserts internal & external edge application C/B guarantees good chip breaking in small hole making by its unique chip breaker design Easy substitution of 4 corner inserts Internal &external same insert spacing Grade Steel : Cast iron : PC6510 Stainless steel : Aluminum : H01 SPDrill hole size : 13 ~ 22(mm) 4. 4 corner use insert NPM(E)T for NPDrill NPDrill inserts internal &external edge application Edge 1 2 for external edge & Edge 3 4 for internal edge. Efficient 4 corner use. NPM(E)T -, DS, DR, DA C/B + Grade application DS DR DA Steel PC6510 Cast iron Stainless Soft steel H01 Aluminum NPDrill hole size : 23 ~ (mm) Strong cutting edge Good performance at high feed 3

4 Characteristics of SPD & NPD 5. Excellent surface finish Surface finish Ra(µm) (ipr) Feed(mm/rev) KORLOY s NPD&SPD show excellent surface finish even in high feed operation Cutting condition KORLOY DRILL : SPD190--3, I/S : SPMT0204-() V=1m/min, d: mm, wet. V=0 sfm, d: 1 inch, wet. Workpiece : SCM4 (AISI41, 42CrMo4) Test result Surface roughness of KORLOY drill : Under 2.0µm 6. Machined hole diameter accuracy Variation of machined hole Variation of Diameter(µm) (ipr) Feed(mm/rev) Cutting condition KORLOY Drill : NPD2--3, I/S : NPMT2808-() V=1m/min, d: mm, Wet V=0 sfm, d: 1 inch, Wet Workpiece : SCM4 (AISI41, 42CrMo4) Test result Variation of diameter is better than A-maker 7. Long tool life Wear resistance Flank Wear(mm) V=130 m/min, f=0.11 mm/rev. Wet V=430 sfm, f= ipr. Wet Machined holes Cutting condition KORLOY DRILL : SPD190--3, I/S : SPMT0204-() V=110m/min, f=0.11mm/rew. d=mm, Wet V=363 sfm, f= ipr. d=1 inch, Wet Workpiece : SCM4 (AISI41, 42CrMo4) 480 holes Test result Longer tool life and better wear resistance than A-maker A-maker edge Korloy edge 4

5 SPD & NPD Insert SPMT - Designation Diameter (mm) d t r d1 Grade SPMT ~ (Steel) SPMT ~ PC6510((Cast iron) (Stainless) SPMT ~ H01(Aluminum) NPMT- Designation Diameter (mm) I d t r d1 Grade NPMT ~ NPMT2808- ~ NPMT ~ NPMT ~ NPMT ~ (Steel) PC6510(Cast iron) NPMT-DS Designation Diameter (mm) I d t r d1 Grade NPMT2228-DS 23 ~ NPMT2808-DS ~ NPMT2908-DS 29 ~ (Stainless) NPMT3308-DS 33 ~ NPMT4108-DS 41 ~

6 SPD & NPD Insert NPET-DR Designation Diameter (mm) I d t r d1 Grade NPET2228-DR 23 ~ NPET2808-DR ~ NPET2908-DR 29 ~ (Soft Steel) NPET3308-DR 33 ~ NPET4108-DR 41 ~ NPET-DA Designation Diameter (mm) I d t r d1 Grade NPET2228-DA 23 ~ NPET2808-DA ~ NPET2908-DA 29 ~ H01(Aluminum) NPET3308-DA 33 ~ NPET4108-DA 41 ~ Insert and drill application per each hole diameter Work piece : SCM4, Hole size : 17(mm), Depth : mm I/S : SPMT0204- Drill : SPD Work piece : STAINLESS STEEL, hole size : 27(mm), Depth : mm I/S : NPMT2808-DS Drill : NPD

7 SPD & NPD USER S GUIDE 1. SPDrill Holder Insert D D1 D2 L1 L2 L3 L Part SCREW WRENCH SPD SPD SPD SPD1--3 SPMT FTNA0204 TW06P SPD SPMT0204- SPD FTKA02206S SPD SPD TW07S SPD SPD SPMT FTKA065 2D, 3D and 4D are available SPD SPDrill Hole size : 17.0mm shank diameter : mm Aspect ratio (2, 3, 4) Make appropriate choice for your machining. 13~ 22(mm) for SPDrill, 23~ (mm) for NPDrill. 7

8 SPD & NPD USER S GUIDE 2. NPDrill Holder Insert D D1 D2 L1 L2 L3 L Part Screw Wrench NPD NPD2--3 NPD0--3 NPD2--3 NPD NPD NPD NPD NPD NPD0--3 NPD NPD3--3 NPD0--3 NPD3--3 NPD0--3 NPM(E)T2228- NPM(E)T2808- NPM(E)T2908- NPM(E)T FTKA065 FTKA0307 FTKA008 TW07S TW09S TW15S NPD NPD0--3 NPM(E)T FTKA08 TW15S 2D, 3D and 4D are available How to calculate P(KW) P = 4 x Ks x V x f x D / 10 7 (KW) Ks(Kg/mm 3 ) : specific cutting force (see Korloy catalog) Velocity : V(m/min) Feed : f (mm/rev) Diameter : D(mm) Examples W.P = SCM4, Ks = 4, V=100m/min, f=0.1mm/rev, D=20mm P(KW)= /10,000,000=2.159KW 8

9 SPD & NPD USER S GUIDE 4. SPDrill, NPDrill Technical information Power Coolant pressure Power(kw) f=0.05mm/rev f=0.2mm/rev f=0.15mm/rev f=0.1mm/rev Coolant pressure( /min) Recommended coolant volume Minimum coolant volume Diameter(mm) Diameter(mm) This plots Power as a function of cutting diameter. The power can be changed by efficiency of machine or wear at cutting edge. Appropriate pressure for NPD &SPD is 5kg/cm 2 and more. This plots coolant pressure as a function of cutting diameter. The coolant pressure can be changed by workpiece and cutting condition. Machining with care Inclined surface Half circle Hole expanding Interfered hole Overlapped boards Decrease feed rate 30~% when you perform these kind of machining below. Trouble shooting Trouble Chatter Long chip Wear Chipping Noise Factor Jammed chip Wrong condition Wrong V Wrong coolant pressure Wrong grade Wrong condition Wrong grade Wrong condition Flank wear Solution V = UP, Feed = UP Alloy, Carbon steel : V=UP, f=up Softsteel, Stainless : V=UP, f=down V = DOWN, Coolant Pressure = UP Grade change Feed = DOWN Grade change V = DOWN, feed = DOWN Insert change Coolnat pressure is very important factor when machining. Low coolant pressure may cause shortened tool life by chattering or cutting edge wear. 9

10 SPD & NPD USER S GUIDE 3. Recommended cutting condition ISO P P M Work piece Hardness W/P (H ) Low carbon steel High carbon steel Low alloy steel Low alloy steel (heat) High alloy steel High alloy steel (heat) Austenite Austenite (Cast steel) Ni>8% 1-0 C/B and Grade C/B Grade 2nd 2nd 2nd 2nd 2nd DS DS DR DS DR DS DS V m/min sfm 180( ) 0(430-7) 1( ) 530(3-700) 130(80-180) 430(265-0) 120(70-170) 0(230-5) 100(-1) 330(6-0) 70(-120) 230(1-0) (-110) 200(1-363) 90(-1) 300( ) 80(-130) 265( ) (30-100) 165(100-3) (30-100) 165(100-3) 80(-130) 265( ) 80(-130) 265( ) 70(-110) 230(1-365) 70(-110) 230(1-365) Condition(L=3D) feed(mm/rev) (ipr) 13~15 16~24 ~ 33~ Machined hole tolerance as per D.O.C. Test cutting condition D.O.C 2 x D 3 x D 4 X D Machined hole tolerance D D D (mm) (mm) (mm) V f Workpiece Metric 130~200 m/min 0.04~0.15 mm/rev 42CrMo4 Inch 430~6 sfm ~0.006 ipr AlSl41 10

11 SPD & NPD USER S GUIDE 3. Recommended cutting condition ISO M M K K K Work piece Hardness W/P (HB) Ferrite Marten site Ni-alloy Ti-alloy High hardness Gray Ductile Graphite Aluminum Copper C/B and Grade C/B Grade DS 2nd DS 2nd DR DR 2nd DR 2nd DR DA 2nd DA 2nd PC30 PC30 PC6510 PC6510 PC6510 H01 H01 H01 H01 V m/min sfm 110(-1) 365(200-0) 100(-1) 330( ) (30-80) 1( ) (30-80) 1( ) (30-70) 1( ) 30(20-) 100(65-200) 180(1-230) 0(465-7) 130(90-180) 430(300-0) 110(70-1) 365( ) 120(70-1) 0(230-0) 100(-130) 330( ) 0(1-300) 8(0-990) 200(1-0) 6(0-8) 200(1-0) 6(0-8) 1( ) 0(330-6) Condition(L=3D) feed(mm/rev) (ipr) 13~15 16~24 ~ 33~ 41~ Application Tips 1. Decrease feed rate 20~30% when using aspect ratio 4D drill. (You may increase feed rate 10~20% when using aspect ratio 2D drill) 2. Apply appropriate cutting condition according to workpiece shape and hardness. 3. Decrease feed rate 30~% when overlapped board drilling. 4. Decrease feed rate 20~30% when poor workpiece clamping and low rigidity of machine. 5. Decrease feed rate 30~% early in the operation when inclined surface drilling. 6. When maximum depth operation, check chip evacuation. (In case of bad chip evacuation, apply step drilling of change to longer drill) 7. When hole expanding, adjust cutting speed and feed rate. (It may cause long chip) 11

12 Warning Safety instruction Do not touch the tools with bare hand. Wear safety glasses or face cover. Make appropriate tool substitution. Be careful when you handle hot and acute chips. Use special tools for chip removal. Be equipped with fire extinguisher in case of fire. Clamp workpiece tightly. Apply recommended cutting condition for your safe and efficient operation. HEAD OFFICE 16-2, Seocho 1-Dong, Seocho-Gu, Seoul, Korea TEL: FAX: , WEB: CHEONGJU FACTORY 53-16, Songjeong-Dong, Hungduk-Gu, Chengju, Chungcheongbuk-Do, Korea TEL: FAX: export@korloy.com JINCHEON FACTORY 767-1, Guangheawon-Ri, Guangheawon-Myon, Jincheon-Gun, Chungcheongbuk-Do, Korea TEL: FAX: July. 2005