Thermal cutting machine and cutting method using same
AssigneeKomatsu Industries Corporation
InventorsYoshihiro Yamaguchi, Tetsuya Kabata
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Abstract
A thermal cutting machine and a cutting method using the same are described, which employ a simple, long-life torch hood for effectively shutting off spatter, the torch hood enabling easy supervision of the cut condition of a workpiece and easy replacement of the consumable parts of the torch. In the thermal cutting machine for cutting a metal by a plasma arc or laser beam generated from the torch, a hood liftable by an actuator is disposed so as to surround the torch and a control unit is provided for giving an instruction to the actuator to lower the hood to a torch-shielding position.
Claims6
A thermal cutting machine for cutting a metal by a plasma arc or laser beam generated from a torch, the machine comprising a hood which is disposed so as to surround the torch and is vertically movable by an actuator.
A cutting method by use of a thermal cutting machine
- wherein a metal is cut by a plasma arc or laser beam generated from a torch, and
- wherein a liftable hood is lowered to cover the torch at least during a piercing phase, thereby shutting off spatter flying from a cut area of the metal.
Dependencies are inferred from the claim text.