Friction Welding – This method joins materials by way of mechanical friction accompanied by a rotational motion. The friction makes heat, softening the materials and allowing for them to bond. Reaming is actually a machining system whereby a multi-toothed fluted tool enters an existing hole to make it much larger. https://simonioswz.vidublog.com/31033602/little-known-facts-about-precision-cnc-machining