Patent ID: 11889611
Assignee: LINCOLN GLOBAL, INC.
Field: Chemical engineering (Chemistry)
Classification: CPC H  B | IPC B  H

Claim 3:
4. A plasma cutting system, comprising:
a plasma arc torch;
a plasma cutting power supply that supplies a plasma cutting current to the plasma arc torch;
a torch actuator that moves the plasma arc torch during a cutting operation;
a motion controller operatively connected to the torch actuator to control movements of the plasma arc torch during the cutting operation; and
a gas controller configured to control a flow of plasma gas and a flow molten metal clearing gas to the plasma arc torch,
wherein the flow of molten metal clearing gas is active during a piercing operation of the plasma arc torch, and the gas controller is configured to automatically determine a completion of the piercing operation and stop the flow of molten metal clearing gas upon determining the completion of the piercing operation.