Groove processing method, groove machining program, control system and plasma cutting equipment

摘要

PROBLEM TO BE SOLVED: To provide a plasma cutting device capable of efficiently forming a Y beveling form part, which inhibits the Y beveling form part from being molten and rounded so as to efficiently form the Y beveling form part, when forming the Y beveling form part by using plasma gas formed of a revolution flow.SOLUTION: A plasma cutting device which includes a plasma torch 2, torch attitude control means for inclining the plasma torch 2, and torch position control means for moving the plasma torch is configured such that: the plasma torch 2 is moved while ejecting plasma gas; a route surface R is formed on the right side of the proceeding direction, when a revolution flow of the plasma gas is right revolution V11; the plasma torch 2 is inclined to a material W to be processed and is moved while ejecting the plasma gas; and a beveling surface K is formed on the left side of the proceeding direction V2.