METHOD FOR FORMING HOLES IN A DIFFICULT-TO-WORK MATERIAL, AND DIFFICULT-TO-WORK MATERIAL HAVING HOLES FORMED BY THE METHOD

摘要

The present invention relates to a method for forming holes in a difficult-to-work material. According to the present invention, provided is a method for forming holes in a difficult-to-work material, comprising: a step of forming a channel on one side of a first difficult-to-work structure; and a step of attaching a second difficult-to-work structure to the side of the first difficult-to-work structure in which the channel is formed. The method of the present invention easily forms holes in the event each hole has a significantly large aspect ratio.