70PCB钻头及钻孔相关知识

1、2005年9月13日我司钻头材料的特点：我司钻头材料的特点：直径1.6mm： 钻头本体 与把柄采用整体式，本体与把柄材料均为碳化钨。UC型因減少和基板接触的面積所以可提昇孔壁品質UC型0.40.8mmUC型的设计优势 ST/STX的设计优势 高质量的钻孔品质，低的钻孔温度，低的钉头、胶渣、折断率现象。操作简单，直径控制容易，较多的研磨次数 低的折损率，减少了钻孔扭矩阻力。 较大的使用范围，使用于一般用途 利于微钻和6层以上的PCB板。 利于一般直径钻头和双面板及6层以下多面板。 Amount of Re-point（0.06mm0.1mm/次）刃带至少剩余0.2mm 以上02550751000

2、10002000300040005000Number of Hits(Drilling Temp - Room Temp)STUCCONDITIONSPWB:FR-4 (L) t1.6mm x 3sDrill:ST30 0.4x6.5UC30 0.4x6.5N:70kRPMF:2.1m/minE/B:0.15 AluminumB/B:1.5mm Paper phenolNumber of Hits: 5,000Drilling Machine: Hitachi ND-2D14全长本体长沟长把柄直径Under cue 直径直径钻尖角间隙钻芯厚度螺旋角刃带长刃带宽第一面角第二面角0.07mm0.1

3、1mmDrill Type： ：UCf f0.3 x 5Web Taper： ：0.028 /mmFlute Land Ratio： ：2.2Helix Angle： ：38孔位精度悪化、切粉排出良好孔位精度良好、切粉排出悪化Drill Type： ：STf f0.3 x 5Web Thickness： ：0.1mmFlute Land Ratio： ：2.0Helix Angle： ：40Web Taper = 0.010/mmWeb Taper = 0.030/mm孔位精度悪化、切粉排出良好孔位精度良好、切粉排出悪化Drill Type： ：UCf f0.3 x 5Web Thicknes

4、s： ：0.11mmWeb Taper : 0.028 /mmHelix Angle： ：35F / L Ratio = 1.5F / L Ratio = 2.5LANDLAND孔位精度良好、切粉排出悪化孔位精度悪化、切粉排出良好Drill Type： ：UCf f0.3 x 5Web Thickness： ：0.11mmWeb Taper:0.028 /mmFlute Land Ratio:2.2Helix Angle = 30Helix Angle = 40切粉排出悪化切粉排出良好NFRTR0.100.150.200.250.300.35DS636,000424,000318,000255

5、,000212,000182,000MLB573,000382,000286,000229,000191,000164,000（ff）0.350.300.250.200.150.10 100 200 300 400 500 600 700 800 (kRPM)限界krpm限界krpm-Quality Level-80k 120k 160k 200kHole LocationGetting betterHole RoughnessStableNail HeadingStableSmearingDecreaseDrill wearingLess wearingEvaluationHole Accu

6、racy15202530354045505575k100k(47)120k(57)140k(66)160k(75)180k(85)Spindle Speed (rpm)（ （Velocity（ （m/min）Hole Accuracy ( m)Ave.+3 Drill Bit: MD35 0.15x2.5CONDITIONSPWB:FR-4(DS) 0.6mm x 2sChipload: 15 m/rev.E/B:0.15mm AluminumB/B:1.5mm Paper phenolNumber of Hits: 3,000Number of Samples: 20204060801007

7、5k120k160k180k (RPM)(%) Condition Drill Dia:f f0.4mm Chipload: 25 m/rev. Fixed No. of hits:3,000 Hit Method:Randomized100% (2481sec)32% Time Reduction68% (1696sec)HoleRegistrationAccuracy02040608010063m/min126m/min188m/min251m/min314m/min主軸runout：（20krpm160krpm）之後因鑽針崩角嚴重、加工中斷DRILL： 1.08.0PWB：FR-4 （D

8、ouble Side） t1.63 E/B：AL t0.2 B/B：Paper Clad t1.5 Parameters：N=20160krpm =40m/rev Constant Number ofhits：2,000hits n=3（轉速）高（轉速）低斷針（轉速）（周速）20 krpm 40krpm 60 krpm 80krpm 100 krpm63m/min 126m/min 188m/min 251m/min 314m/min适当转速的选定：不能太高或太低Hole Registration Accuracy020406080100120Hole Registration Accurac

9、y（）AVEAVEAVE： .3支中斷2支12.5m/rev1.25m/min17.5m/rev1.75m/min22.5m/rev2.25m/min（chipload）大（chipload）小 PWB：BT （Double Side） t0.213 E/B：AL t0.15 B/B：Paper Clad t1.5 Parameters：N=100krpmConstant F=1.75m/minf=17.5m/rev Number of hits：3,000 n=3适当进刀的选定： 不能太大或太小Hole Wall Roughness051015202512.517.522.5Hole Wal

10、l Roughness（）： . PWB：BT （Double Side） t0.2x13s E/B：AL t0.15 B/B：Paper Clad t1.5 Parameters：N=100krpm Constant Number of hits：3,000hits n=10 （ Measuring 5 holes on nearby 3,000hits）12.5m/rev1.25m/min17.5m/rev1.75m/min22.5m/rev2.25m/min（chipload）大（chipload）小（）（F） - AVE1 7 13 1 7 13 1 7 13(Panel from t

11、he Top)Hole Registration Accuracy0204060801001201-10001001-20002001-3000Number of hitsDRILL： .PWB：FR-4 (4Layers) t1.6x3sE/B：AL t0.15B/B：Paper Clad t1.5Parameters：N=75krpm F=0.75m/minf=10m/revNumber of hits：3,000hitsn=3 AVE+3s-AVE+3s AVEHoleRegistrationAccuracy（m）适当进刀的选定：不能太大磨耗量: 钻头磨耗与PCB层数的关系DRILL D

12、IA fDL2BOTTOM PCBBACKERL1POINT ANGLE aD0.100.200.300.400.500.60L10.30.30.30.30.30.3L20.0230.0470.0700.0930.1160.140DEPTH(mm) 0.3230.3470.3700.3930.4160.440（先端角為130）Future DrillingDrill BitTable SpeedDrilling MachineRepointing SpindlePositioning AccuracyVibrationCarbide MaterialRepointingGeometry Des

13、ignDrilling ConditionMaterial Preparation ParameterRingPrecisionPC BoardEntry&BackerMaterialHardnessNestingSurfaceRoughnessDrill PenetrationControlThrustWorking Environmentf 0.1-0.25mmin ProductionFlute Finish VacuumBush Pressure ForcePCBSet upGlass FiberCopper RatioThickness Resin ContentProper

14、tiesNoise4M ThinkingOperatorSkillExternal VibrationBasementDrillingUNION TOOL CO. TECHNICAL RESEARCHUNION TOOL CO. TECHNICAL RESEARCHUNION TOOL CO. TECHNICAL RESEARCHUNION TOOL CO. TECHNICAL RESEARCHDrill Type： ：UCf f0.3 x 5Web Thickness： ：0.11mmWeb Taper:0.028 /mmFlute Land Ratio:2.2Helix Angle = 3

15、0 Helix Angle = 40UNION TOOL CO. TECHNICAL RESEARCHUNION TOOL CO. TECHNICAL RESEARCHUNION TOOL CO. TECHNICAL RESEARCHST typeUNION TOOL CO. TECHNICAL RESEARCHUC typeUNION TOOL CO. TECHNICAL RESEARCH020004000600080001000012000140001600018000200001TOOL LIFE (HITS)CONVENTIONALNEW NE30 SERIESCONDITIONSPW

16、B:BT RESIN (DS) 0.4mm x 3sDrill:0.15x2.5N:160kRPMF:4.8m/minE/B:LE400B/B:1.5mm Paper phenolNumber of Hits: 3,000Drilling Machine: Hitachi ND-1W212Quality LimitUNION TOOL CO. TECHNICAL RESEARCHCONDITIONSPWB:FR-4 (8L) 0.8mm x 2sDrill:NH20 0.3x5N:80kRPMF:1.8m/min E/B:LE400B/B:1.5mm Paper phenolNumber of

17、 Hits: 3,0000.50.5aveave穴位置量Hole positioning accuracy穴位置量Hole positioning accuracy従来材従来材ConventionalConventional10%Improved10%Improvedz穴位置量（m）穴位置量（m） Hole positioning accuracy AVE.+3s Hole positioning accuracy AVE.+3sNH20材NH20材0.00.01.01.02.02.03.03.04.04.05.05.06.06.07.07.08.08.09.09.010.010.00.150

18、.150.250.250.350.350.450.450.60.6先端 距離( m m )先端 距離( m m )Distance from drill topDistance from drill topNH20材NH20材従来材従来材ConventionalConventional25%Reduction25%Reduction径減量（ m ）径減量（ m ）Diameter wearing amountDiameter wearing amountUNION TOOL CO. TECHNICAL RESEARCH人HANDLING基板材料機械鑽頭鑽頭作業環境綜合的改善bImpact on

19、 Registration AccuracyChisel pointinconcentricityHeavyOverlapMediumGapMediumImpact on Registration AccuracyPrimary flairLightNegativeLight010203040506070809010011012001020304050Chisel point inconcentricity ( m)Hole registration accuracy ( m)Bottom-BackTop-FrontMAXAVE+3sMAXAVE+3sChisel point inconcen

20、tricityDRILL: UC 0.3 x 5 mmPWB: FR-4 4Layers t1.6 x 2sEB: Al t0.15 B/B：Bakelite t1.5 mmN: 80 krpm (V: 75.4m/min)F: 2.0 m/min (f: 25 m/rev) Hit count: 3000 hitsImagination of Chisel point inconcentricity010203040506070809010011012001020304050Imagination of OverlapMAXAVE+3sMAXAVE+3sBottom-BackTop-Fron

21、tOverlapDRILL: UC 0.3 x 5 mmPWB: FR-4 4Layers t1.6 x 2sEB: Al t0.15 B/B：Bakelite t1.5 mmN: 80 krpm (V: 75.4m/min)F: 2.0 m/min (f: 25 m/rev) Hit count: 3000 hitsOverlap ( m)Hole registration accuracy ( m)010203040506070809010011012001020304050Bottom-BackTop-FrontMAXAVE+3sMAXAVE+3sGapDRILL: UC 0.3 x 5 mmPWB: FR-4 4Layers t1.6 x 2sEB: Al t0.15 B/B：Bakelite t1.5 mmN: 80 krpm (V: 75.4m/min)F: 2.0 m/min (f: 25 m/rev) Hit count: 3000 hitsGap ( m)Hole registration accuracy ( m)Imagination of Gap01020304