High frequency printed circuit boards(PCBs)use polytetrafluoroethylene(PTFE)material,which is prone to burrs during milling and cutting of the substrate shape.In view of the PTFE burrs generated during the milling process,we first establish the internal corporate standards for burrs,and divide them into four major categories according to the mechanism of burrs.Based on the milling principle of the milling cutter,the four major categories of burrs of PTFE materials are analyzed.Research on generating and improving solutions has effectively solved the burr problem during the milling process of PTFE boards.
维普
万方数据