Patent ID: 11919103
Assignee: ILLINOIS TOOL WORKS INC.
Field: Machine tools (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 0:
1. A laser welding device, comprising:
a laser generator configured to generate welding-type lasing power;
a lens to focus the welding-type lasing power at a focal point on a workpiece to generate a puddle during a welding-type additive manufacturing operation;
a wire feeder configured to feed wire to the puddle generated by the laser generator; and
a laser scanner is configured to control the lens to:
move the focal point of the welding-type lasing power in a circular pattern within the puddle including one or more pauses or breaks in movement of the focal point in the circular pattern during application of the welding-type lasing power, such as a time interval in which the laser scanner does not move the focal point; and
advance the focal point along a weld path over the workpiece while the focal point is moved in the circular pattern within the puddle during the welding-type additive manufacturing operation, wherein the circular pattern is divided into quadrants, the welding-type lasing power at a first quadrant having a first welding-type lasing power and the welding-type lasing power at a second quadrant having a second welding-type lasing power,
wherein the first and second welding-type lasing powers are different, and
wherein the laser generator is further configured to control the welding-type lasing power to change according to the location of the focal point on the workpiece along the weld path.