research on printed circuit board mechanical...

Research on Printed Circuit Board Mechanical Drilling

Journal of the HKPCA / 2016 / Spring / Issue No. 59

Technical Paper14

PCB

PCB

,

250 krpm

Abstract

Key words:

This paper introduced the research progress on PCB micro-

holes mechanical drilling from Laboratory of PCB precision machining of

Guangdong University of Technology. The drilling process, drilling force,

drilling temperature and holes quality of PCB drilling were studied. The

characteristics and mechanism of drill wear and broken were analyzed.

The dynamic performance of the drilling machine was also analyzed and

the designation rule of PCB high speed numerical control drilling machine

was proposed. An PCB high speed numerical control drilling machine with

250 krpm highest spindle speed was designed and manufactured.

PCB, micro-holes, mechanical drilling

[1 ,2 ]

PCB

0.1mm

0.1mm

PCB

0.05mm - 0.1mm

PCB

PCB

PCB

1 PCB

1.1

Deform AdvantEdge FEM

FR-4 25 m 18 m

1

[3 ,4 ]

1 FR-4 (D = 0.1mm f = 0.006mm/r n = 50krpmv = 2000cm/min recorded rate 5000fps)r

[3, 4]

2 FR-4 (D = 0.1mm f = 0.006mm/r n = 50krpmv = 2000cm/min recorded rate 5000fps)r

[3, 4]

www.hkpca.org

Technical Paper 15

2

3

0.54N

0.1mm

4

1.2

[3 ,5 ]

3[3] 4 0.1mm FR-4

(D = 0.1mm v = 120cm/min n = 200krpm v = 2000cm/minC R )

f r[3]

5 FR-4(a) D=0.1mm v =120cm/min n=200krpm v =2000cm/min(b) 5mm FN=5N 0.4krpm

f r[3]

6 FR-4[3]

80 C

5

O [3 ]


Technical Paper16

7 FR-4(a) D = 0.1mm v = 150cm/min n = 295krpm v = 2300cm/min 2500(b) D = 0.2mm v =150cm/min n = 155krpm v = 1800cm/min 1500(c) D = 0.3mm v = 240cm/min n = 145krpm v = 1800cm/min 1500

[3, 6]

f r

f r

f r

(

6)

( 7)

[3, 6-9]

8[10]

9[10]

10[10]

11[10]

12[10]

13[10]

[1 0 ]

( 8 13)

www.hkpca.org

Technical Paper 17

1.3

( 14 16)

(CPK

)

[3 ,4 ]

14 FR-4 (a) (b) (c)(d) D = 0.1mm v = 2000cm/min (a) v = 30cm/min n = 50krpm(b) v = 90cm/min n = 150krpm (c) v =150cm/min n = 295krpm(d) D = 0.1mm v = 160cm/min n = 200krpm

[3]

r f

f f

f

15 FR-4 (a) (b) (c)(a) D = 0.1mm f = 0.005mm/r n = 295krpm v = 2300cm/min(a: copper foil thickness; b: nail head thickness) (b) (c) D = 0.1mmf = 0.006mm/r n = 295krpm v = 2300cm/min

[4]

r

r

16 FR-4 (D = 0.1mm f = 0.005 n = 295krpm v = 2300cm/min)[4]

r

2

[1 0 ]


Technical Paper18

Tg

PCB

PCB

PCB

X Y Z

250krpm

[1 1 -1 5 ]

[1 6 -2 3 ]

3

( 1)

( 2)

( 2)

( 2)

( 2)

[2 4 -2 8 ]

5

1

2

4

1 FR-4[3]

2 FR-4[3]

www.hkpca.org

Technical Paper 19

(PI)

PI

PI

(a) 20 m (b) 40 m (c) 60 m

(d) 80 m (e) 100 m (f) 120 m

(g) 140 m (h) 160 m (i) 180 m

17 (D = 0.25mm, v = 50cm/min n = 140krpm SF305 101820DR )[27]

f

0 ms 9.3 ms 9.8 ms 96.3 ms 99.1 ms


Technical Paper20

18(D = 0.3mm v = 50cm/min n = 14okrpm SF305 101820DR 0.5mm)

[24, 27]

f

19(D = 0.3mm v = 250cm/min n = 140krpm SF305 101820DR 0.5mm)

[24, 27]

f

www.hkpca.org

Technical Paper 21

PI

PI

20(D = 0.3mm n = 160krpm v = 50cm/min SF305-101820DR

LC-110)

[24]

f

10 100 500

21(D = 0.3mm n = 180krpm v = 200cm/min v = 1800cm/min SF305-101820DR )

[24, 27]

f r


Technical Paper22

(a) (b)

22(D = 0.25mm n = 158k rpm v =300mm/s SF305-103520DR 0.5mm LC-110)

[24, 28]

r

6 IC

IC

IC

-

IC

IC

MVC IC

IC

IC

[2 9 ,3 0 ]

23 IC (a) (b) 1000 (c) 2000 (d) 3000 (e) 4000 .(D = 0.15 mm n = 158K rpm v = 15mm/s, v = 300 mm/s.)f r

[29, 30]

www.hkpca.org

Technical Paper 23

24 IC (a) ; (b)2000 ; (c)3000 ; (d)4000(D = 0.15mm n = 158K rpm v =15mm/s v = 300mm/s).f r

[29, 30]

7

[2 9 ]

/

/

/

/

/ /

/

/

/

/

/

/

/

0.1 mm

IC

PCB

PCB - -

PCB

[1]

2010 (44): 3-10

[2] L.J. Zheng, C.Y. Wang, Y.X. Song, et al. A Review on

Drilling Printed Circuit Boards, Advanced Materials

Research, 2011(188):441-449.

8


Technical Paper24

[3]

2011

[4] L.J. Zheng, C.Y. Wang, L.P. Yang, et al. Characteristics of

chip formation in the micro-drilling of multi-material sheets,

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thrust force of printed circuit board drilling. Key

Engineering Materials, 2012 (496): 259-265.

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Advanced Manufacturing Technology. 2014 DOI:

10.1007/s00170-014-6520-1.

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[9] Y.P. Qu, C.Y. Wang, L.J. Zheng, Y.X. Song. Wavelet

transform denoise of PCB drilling force signal. Advanced

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[12] L.P. Yang, L.X. Huang, C.Y. Wang, L.J. Zheng. Drilling

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[13]

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[14] L.X. Huang, C.Y. Wang, L.P. Yang, L.J. Zheng, Y.X. Song.

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[17]

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[18]

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[19]

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[21]

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[22]

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[23]

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[24]

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Flexible Printed Circuit Board. Materials Science Forum,

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[26] L.J. Zheng, C.Y. Wang, X Zhang, et al. Experimental Study

of Micro-holes position accuracy on Drilling Flexible

www.hkpca.org

Technical Paper 25

Printed Circuit Board. Proceeding of the 11th Global

Conference on Sustainable Manufacturing, September

23rd to September 25th 2013, Berlin, Germany.

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circuit board and its influence on hole quality. Circuit World.

2015 ( )

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