Keyword: PCB, PCB board technology
PCB board technology system, including computer aided manufacturing processing technology, the CAD/CAM, and light painting technology. To
introduce the following computer-aided manufacturing processing technology
Computer-aided manufacturing (CAM) is based on the process of various process. The foregoing process requirement, want to make the
necessary preparations before light painting. Such as mirror, resistance welding expansion, process line and process frame, line width
adjustment, the center hole, the problem such as the contour line should be in CAM this process to complete. Special note, the user file spacing
is too small, must make the corresponding processing. Because each factory process flow and technical level of each are not identical, to
achieve the final requirements of users, must make the necessary adjustments in the process, the precision and so on various aspects in order to
meet user requirements. So the CAM processing is the indispensable process in modern manufacturing printed circuit boards.
A. CAM work done
1. Pad size correction, the merge D yards.
2. The line width of the correction, the merge D yards.
3. The minimum distance inspection, between welding plate and welding plate, welding plate and line between, between line and line.
4. Inspection of the aperture size in spelling.
5. The minimum line width of the inspection.
6. Determine the parameters for the resistance welding expand.
7. In the mirror.
8. Add the various process line and process.
9. For modified lateral erosion line width correction.
10. The formation of center hole.
11. Add horn line shape.
12. And locating holes.
13. Puzzle, rotate, mirror.
14. Spell.
15. The graphic overlay processing, cutting Angle tangent handle.
16. Add users trademark.
B. CAM process organization
Because as many as dozens of popular CAD software on market now, so for the organizational CAD process management must first begin,
good organization will achieve twice the result with half the effort.
Because the Gerber data format has become the standard of light painting industry, so in the light painting process should be to Gerber data for
processing object. If the CAD data as an object leads to the following questions.
1. The CAD software kinds too much, if the various technological requirements are completed in the CAD software, requires that every operator
must master every kind of CAD software operation. This will require a long the training period, you can make the operator skilled workers, to
meet the actual production requirement.
This from the Angle of time and the economy is not worthwhile.
2. Due to the process requirement is various, some requirements for some CAD software could not be achieved. Because design using CAD
software do, without considering the special requirements of process, and thus can not meet all requirements. The CAM software is specially
used for processing
Do these jobs are best.
3. The CAM software is powerful, but all operations on Getber files, not for CAD file operations.
4. If using CAD process, requires every operator must provide all of the CAD software, and to each kind of CAD software is different
technological requirements. This will cause unnecessary confusion to management.
Above all, CAM organization should be the following structure (especially large and medium-sized enterprises).
(1) all the process of unification to Gerber data for processing object.
(2) each operator must master skills of CAD data to Gerber data.
(3) each operator to master one or several kinds of CAM software operation method.
(4) the Gerber data file make unified process specification.
CAM process can be relatively concentrated by several operators for processing, in order to manage. Reasonable organization will greatly
improve the efficiency of management, production efficiency, and effectively reduce the error rate, so as to achieve the result of improving
product quality.
Source: //www.seekic.com
