Fr4 CNC Precision Turning Processing Precision Parts

FR4 plate

 

I. Processing product introduction

fr4 insulated panels according to the use of different applications, the industry is commonly known as: fr4 Epoxy Glass Cloth, insulation board, epoxy board, epoxy resin board, epoxy resin board, brominated epoxy resin board, fr4, fiberglass board, glass fiber board, fr4 reinforcing board, FPC reinforcing board, flexible circuit board reinforcing board, fr4 epoxy resin board, flame retardant insulating board, fr4 laminate, epoxy board, fr4 optical board, fr4 glass fiber board, epoxy glass cloth, epoxy glass cloth laminate, circuit board drilling mat. fr4 light board, fr4 glass fiber board, epoxy glass cloth board, epoxy glass cloth laminate, circuit board drilling pad. Main technical characteristics and applications: stable electrical insulation properties, good flatness, lubricated appearance, no pits, thickness tolerance specification, suitable for use in high-performance electronic insulation requirements of products, such as FPC reinforcement boards, PCB drilling pads, fiberglass meson, potentiometer carbon film printed glass fiber board, fine vernier gear (wafer grinding), fine test panels, electrical (electrical) equipment insulation spacer, insulated pads Transformer insulation boards, motor insulation parts, grinding gears, electronic switch insulation boards, etc.

 

NEMA American Electrical Manufacturers Association rules of a material specification, the corresponding IEC International Electrotechnical Commission specification for the EPGC202, the domestic specification with no complete counterparts. Very close to the domestic norms for the 3240 epoxy laminated glass cloth plate, 3240 corresponds to the IEC International Electrotechnical Commission norms for the EPGC201, and EPGC201 and EPGC202 as long as the difference in flame retardant properties. So we can simply think that fr4 is an improved product with enhanced flame retardant property of 3240.

 

fr4 insulating board appearance colors are:

Yellow fr4 board, white fr4 board, black fr4 board, basket color fr4 board and so on.

The fr4 board is the substrate used in PCB, is a variety of board material. Plate material according to strengthen the material is different, the main classification for the following four: fr4: glass cloth substrate, fr1, fr2, etc.: paper substrate, CEM series: composite substrate, special materials substrate (ceramic, metal-based, etc.) fr4 by the special electronic cloth impregnated with epoxy phenol-formaldehyde resin and other materials by high-temperature and high-pressure hot-pressure board laminated products.

 

Fr4 board insulation board characteristics: high mechanical and dielectric properties, good heat and moisture resistance and good machinability.

 

Usage of fr4 insulating board: motor, electrical equipment for insulation structure parts, including all kinds of switch reinforcement Electrical insulation `carbon film printed circuit boards `computer drilling pads `mold fixtures, etc. (PCB test frame) and can be used in the humid environment conditions and transformer oil.

 

Second, FR4 board processing processing parts processing methods

 

1, FR4 drilling

This is a common PCB circuit board factory processing methods, whether it is PCB test fixtures, or PCB post-processing will go through the “drilling”, the larger PCB factory usually set up their own drilling room, drilling room is usually more intimate with the fixture, and drilling room work is not an easy job, but compared to the more comfortable, usually drilling room to use the Consumables and equipment used in the drilling room are special drilling machines, drilling nozzles, adhesive particles, wood pads, aluminum pads, etc. The loss of drilling nozzles and pads is huge, and many small companies usually supply a factory to get the drilling nozzles and milling cutters on the big money;

 

In addition to drilling the way common and new up the LED lampshade fixed insulating parts, LED as an energy-saving industry in recent years has received popularity, and LED by a large number of small lamps, this feature makes the insulating board applications again broaden the scope of application, usually the LED fixed insulating parts of the processing mode are drilling and then gong a circle can be, FR4 processing mode is relatively simple, the market is huge, but the characteristics of level Not high, and low profit;

 

2、FR4 computerized gong

Computer gong is the name of Guangdong and Hong Kong, the superficial point is CNC or CNC, there are also called machining centers, in fact, are a meaning, the function of the computer gong is very powerful, which is divided into plane and beveled (or called curved surfaces), beveled category is relatively small, and the plane of the computer gong is very common, such as insulating gaskets, insulating rods, vernier wheels, and other small machining parts are used in the way of the computer gong. Processing epoxy board, computer gong zui big characteristic is sensitive, fast, powerful, is currently zui good and zui commonly used processing methods;

 

3、FR4 slitting

This is the market zui common is also zui common processing methods, ordinary stores have a cutting board machine cutting boards with, and this is usually relatively rough, the tolerance of the large can be controlled within 5mm, said scary, I have seen a lot of Dongguan to do the epoxy plate stores or companies, do about more than 5 years of the company even in the Angle Iron welded cutting machine cutting, Dongguan is known as the capital of the manufacturing, it does seem to have a little carving skills, but it's not a good idea. It seems that it is indeed a carving skill, this way there is no technical content, but sometimes quite lucrative, than sometimes a normal calculation, then a sheet and a half is cut into 8 small, there is a small fee, but those stores selling boards have a way to a board cut into 10 small, if the volume is large, the profit will be very substantial;

 

4, FR4 milling machine / lathe

This kind of processing out of the product, usually are parts and such products, because most of the milling machine and lathe was originally used for hardware parts processing with, but ordinary milling machine and lathe processing speed is a big feature, so if you rely exclusively on this kind of epoxy plate processing, the company's life expectancy will be greatly reduced, but to do the fixture, then, these two kinds of equipment is a necessity, that is to say, if the thickness of the processing That is to say, if the processing thickness of the thicker epoxy plate, milling machine and lathe is not a choice;

 

5, FR4 carving machine

Computerized carving machine by the computer, carving machine controller and carving machine host three parts. Its working principle is: through the computer configuration of special carving software to stop the design and layout, and by the computer to the design and layout of the information automatically transmitted to the carving machine controller, and then by the controller to convert this information into a stepper motor or servo motor can drive the power of the signal (pulse string), control the carving machine host to generate the X, Y, Z three-axis carving knife path base path. At the same time, carving machine on the high-speed rotary carving head, through the FR4 processing material configuration of the tool, fixed in the host table on the processing materials to stop cutting, can be carved out in the computer design of a variety of plane or plane relief graphics and text, to complete the carving of the automated operation.