What are the methods used in PCB circuit board?
The contour line as the PCB circuit board shape processing benchmark, cutting processing can only be processed straight line shape, special parts can be used for punching and milling machine. For many varieties, the number of small, the size of the printed board is not required for the use of this method for the PCB circuit board contour machining, the disadvantage is the poor accuracy, and sometimes need to be polished sandpaper after processing.
This kind of PCB circuit board processing method is more flexible. It is necessary to allow the arc at the corner to be greater than or equal to the minimum radius of the milling cutter. The CNC milling machine can process the shape of the printed circuit board, because the milling cutter is cylindrical. High processing precision, can process various shapes and sizes of the board. NC milling is suitable for the production of large batch, complex shape and high precision of the printed circuit board. The movement of the worktable or the rotating shaft is controlled automatically by the order, the operator only needs to make the order according to the dimension and the loading and unloading of the printed board on the numerical control worktable. Hebei Cangzhou Lida circuit board factory mainly produces single-sided circuit boards, aluminum circuit board, PCB board, LED board and multi-layer circuit board, and is widely used in aerospace, defense, communications, home appliances, environmental protection, medical and industrial control field.
The blanking gap between punch and die is reasonably designed according to the thickness and the size of the printed board.
