| 摘要 |
PURPOSE:To produce a column easily and reduce the cost by forming the column of a dischage machining device with two or more rectangluar pipes fixed by welding in the lengthwise direction. CONSTITUTION:A column 20 is erected on a bed which mounts a machining vessel by means of a saddle and a table, and a head of the discharge machining device is supported by the column 20, which is formed by arranging two rectangular pipes 22 in the lengthwise direction and fixing them by welding their corner sections 22a along the lengthwise direction. |
