FPC shape and hole processing
A, FPC shape and hole processing technology
FPC is currently the most used batch processing or cutting, small-volume samples of FPC and the FPC is mainly used in CNC drilling and milling processing. These technologies can not meet the dimensional accuracy of the future, especially the location accuracy standards, new processing technology is now being gradually applied, such as: laser etching, plasma etching and chemical etching techniques. These new shape processing technology has a very high position accuracy, in particular, not only the location of the chemical etching technique for mass production of high precision and high efficiency, low cost technology. However, these techniques rarely used alone, is generally used in combination with the cutting method.
The purpose of classification using the shape processing FPC, FPC drilling, FPC slot processing and finishing and other related parts. Simple shapes are not too high accuracy using a one-time cutting process. For particularly high precision, complex shape of the substrate, if the efficiency of using a mold case may not meet the requirements can be processed in several steps FPC, specific examples, such as inserting a narrow pitch connector plugs and parts High-density mounting holes, such as the positioning of components.
II. FPC guide hole
Also known as the positioning hole, the hole processing is generally independent of the process, but there must be, and line-oriented graphics positioning between holes. Automation technology is the use of CCD cameras to locate the anchor directly identified, but the high cost of such equipment, the limited scope of application, generally do not use. Most of the methods now used or in flexible PCB copper foil with a logo as the benchmark on the drill positioning holes, which, though not new technology, but can significantly improve the accuracy and efficiency.
In order to improve punching accuracy, the use of high accuracy and less scrap processing positioning hole punching method.
Third, FPC punching
Cutting is a good pre-prepared special mold or crank in the hydraulic press to punch holes and form processing. Now a variety of molds, other processes are sometimes used molds.
Fourth, FPC therefore legitimate workers milling
Milling processing time is therefore legitimate workers seconds, very short, low cost. Not only are prices high and making the mold to have a certain period, it is difficult to adapt to dispatch the trial and the design changes. CNC milling CNC therefore legitimate work and CAD data if the data can immediately be provided with jobs. Shaver and every piece of the milling work directly affects the length of time the level of processing costs, processing costs are also high for a long time, so the transfer processing system less suitable for the high price of products or a short time trial.
