| 摘要 |
The purpose of the present invention is to inhibit a corner section between a beveling surface and a root surface from melting when the beveling surface is cut. The present invention is a plasma cutting device provided with a plasma torch (2), a torch attitude control means for tilting the plasma torch (2), and a torch position control means for moving the plasma torch, wherein the plasma cutting device is configured such that the plasma torch (2) is moved while discharging a plasma gas, a root surface (R) is formed on the right side with respect to the travel direction when the swirl flow of the plasma gas is a rightward swirl (V11), the plasma torch (2) is tilted with respect to a machined material (W) and moved while discharging a plasma gas, and a beveling surface is formed on the left side with respect to the travel direction (V2). |
