In aluminum processing, countersunk holes and via holes what difference?
Through holes in the positioning hole, the screw hole, and the screw cap is countersunk hole sink don't come out.AskI can't understand you..Chasing the answerThe countersunk head is where the screw cap sinks and the through-hole is threaded to avoid the hole
Through the hole, as the name suggests, that is, through, through the appropriate size of objects or liquid holes, the role is: A, used for connection, can be threaded through holes. B, a cylinder for a piston engine. C, in the distribution of pump for transporting liquid, gas and dust loading objects etc.. D, in life, we are wearing clothes, trousers and hole application examples.
Countersunk hole with flat drill or gongs knife on the board but not drilling drill (namely half hole) the transition part of the hole wall / hole wall at the maximum aperture and the minimum hole is connected with PCB parallel to the surface, size of hole part is flat, not inclined.