In-Process Gauging for Deep Hole Drilling
How In-Process Gauging Works In-process gauging measures the bore diameter immediately after the drill retracts, while the part is still in the machine. The gauge enters the bore at the end of each drilling cycle and takes readings at programmed depths. The two main types I work with are air gauging and contact probing. Air gauging uses a small plug with orifices that measure the gap between the plug and the bore wall. Contact probing uses a mechanical finger that touches the bore surface and sends a signal through the machine’s probe receiver. ...