Patent ID: 9481049
Filing Date: 2016-11-01
CPC Classification: B23C,B23K,B23P

Claim Text:
1. A combined machining method of forming a hole in an original sheet by thermal cutting and machining, and taking out a cut member including the hole from the original sheet, the method including: a hole-cutting process for forming a hole in the original sheet by means of thermal cutting while leaving a machining allowance relative to a finished size; a finishing process for using a cutting tool to cut a thermally-cut end surface of the hole by guiding the cutting tool along an inner peripheral surface of the hole, and to machine the hole to the finished size; an outer periphery-cutting process for cutting an outer periphery of the cut member by means of thermal cutting and taking out the cut member from the original sheet, the outer periphery-cutting process being executed after the finishing process; and a confirmation process for confirming whether or not thermally-cut end material remains inside the hole after the hole-cutting process by advancing the cutting tool toward the hole and detecting a position of the cutting tool, the confirmation processing being executed between the hole-cutting process and the finishing process.