Experimental Study on PCB Micro Drilling Force

2012 ◽  
Vol 246-247 ◽  
pp. 1017-1021 ◽  
Author(s):  
Feng Gong ◽  
Bai Qiang Chen ◽  
Ji Bin Li

With the development of high density, multi-functions, miniaturization and multi-layer on printed circuit board (PCB) design, great challenges have been presented to the miniaturization of drilling on PCB. In order to meet the hole precision, quality and improve the performance, efficiency of mechanical drilling, further research should be done on the cutting state. Kistler high-precision micro-force platform was used in this paper to test and analyze the cutting force, investigate the general laws of micro drilling, and optimize the parameters for HANS PCB drilling machine. Thereby, to improve the efficiency and precision of the drilling, range of processing, and increasing market competitiveness.

2012 ◽  
Vol 723 ◽  
pp. 401-406 ◽  
Author(s):  
Xin Zhang ◽  
Cheng Yong Wang ◽  
Li Juan Zheng ◽  
Lin Fang Wang ◽  
Yue Xian Song

Cutting force is one of the most important parameters in the drilling process of FPC (Flexible printed circuit board). It has a directly affect on the micro-drills’ life and the micro-holes quality. It causes the FPC delamination, pulling of the plastic, the burr of exit hole and other processing defects. In this paper, some experimental investigations of cutting force of high speed micro-drilling are carried out to improve the drilling quality of FPC. The results indicate that the drilling parameters(spindle speed, feed speed and drill-bit diameter) have significant influence on micro-drilling thrust force. The thrust force of drill copper foil is larger than the thrust force of drill adhesiver layer and the thrust force of drill PI layer is the smallest. The larger the thrust force is, the bigger the exit burr is.


Circuit World ◽  
2018 ◽  
Vol 44 (4) ◽  
pp. 165-170
Author(s):  
Hongyan Shi ◽  
Xiaoke Lin ◽  
Qiuxin Yan ◽  
JiaNan Zhang

Purpose The purpose of this paper is to study and obtain the influence of resin and filler properties of printed circuit board (PCB) on the drilling force during micro drilling. Design/methodology/approach Experiments were carried out to study the influence of PCB on micro-hole drilling force under high spindle speed. A drilling force measurement system was applied, and then, the influence of resin and filler properties of PCBs on the force was analyzed. The proportion of resin and filler in the PCB was defined as four levels, and the influence of PCBs based on the drilling force measurement was summarized. Findings The drilling force decreased with the decrease in the feed rate, and lower filler (16-30 per cent) and average resin (31-50 per cent) would have a positive impact on the drilling force. At the same time, the size of uniform and fine fillers would help to reduce the drilling force. Originality/value The drilling force measurement system was applied, and the influence of PCBs on force was analyzed, which could provide a reference value on the optimization of the drilling force during micro drilling.


2011 ◽  
Vol 188 ◽  
pp. 104-109 ◽  
Author(s):  
Hong Qun Tang ◽  
Cheng Yong Wang ◽  
Bing Wang ◽  
F. Su ◽  
Ping Ma ◽  
...  

The target of this paper is to design a high speed drilling machine suitable for printed circuit board with micro-hole of 0.1 mm diameter, which has drilling force measuring function and rapid change spindle function. Therefore, in this paper, the main principles of module partition for drilling machine were analyzed. Module partition was conducted for high speed drilling machine of Printed Circuit Board (PCB), as well as using modular components combine PCB high speed drilling machine. Then, performance testing and simulation of dynamic modeling were carried out on the modular PCB high speed drilling machine. The results show that the modular PCB high speed drilling machine has good performance, enough stiffness, better stability and meeting the design requirements. The modular partition laid the foundation for further study on the module creation and reconfiguration of PCB drilling machine.


1985 ◽  
Vol 1985 (2) ◽  
pp. 30
Author(s):  
A. Carling ◽  
R. Ford ◽  
M. Goodwin ◽  
B. Smith

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