Method of cutting small section bar stock in machine tool involves using contra-rotating headstock and tool carrier to produce high cutting speed

摘要

The method of machining bar stock involves placing the bar in a feed and supplying it to a movable headstock (4) to lock it for rotation at a set speed. A rotary tool head (2) is mounted on the same axis of rotation as the headstock but rotates in the reverse direction. This increases the effective cutting speed of the tool. claims include a machine tool using the method.