Abstract: Disclosed is a method for machining a component including: a first processing step of machining a workpiece material into a workpiece in which a needed portion is connected to an unneeded portion via a connecting portion by action of a tool supported by a tool supporting portion on the workpiece material supported by a workpiece material supporting portion in a processing space covered with a cover member; and a second processing step of cutting the connecting portion to separate the needed portion from the unneeded portion by using the tool supported by the tool supporting portion in a state in which a door that divides the processing space is opened for a workpiece material transport mechanism to move into the processing space and at least the needed portion of the workpiece obtained through machining in the first processing step is supported by the workpiece material transport mechanism.

Abstract: Provided is a bar feeder that pushes a rod-shaped workpiece into a hollow main shaft having a holding mechanism at one end of the main shaft, from another end, the bar feeder being arranged in a work room arranged adjacent to a processing room where the main shaft is installed, the work room being provided with a work machine including a transport mechanism for moving an article to and from the processing room, and the bar feeder being arranged at a position at which at least a portion thereof overlaps with the work mechanism in a top view or a front view.