| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a suction table that has a high rigidity and that has the ability to efficiently collect dust generating at the time of machining. SOLUTION: On the surface of a supporting plate 22, there are opened suction holes 22a for sucking a gas. A porous plate 23 is arranged on the surface of the supporting plate 22 where the suction holes 22a are opened. The porous plate 23 defines a first and a second main surfaces that are parallel to each other, and possesses a plurality of air vents that communicate between the two main surfaces. Each air vent has a first opening in the first main surface and a second opening in the second main surface. The adjacent air vents are partitioned with a parting wall thinner than an interval between the first and second main surfaces. The first main surface side is placed opposite to the supporting plate 22. The first and second openings of each of the two or more air vents are provided with a shape elongated in the first direction. Each first opening of the air vents is partially superimposed on the opening of the suction holes 22a of the supporting plate 22.</p> |
