Caterpillar Inc.

Keith Egland

Michael Noble

Huijun Wang

Jeremy Roe Hammar

William Ulrich

Donald Stickel

Seth Johnson

Timothy W Olmsted

Ling Pan

David R Griffith

Christopher Lu

Howard W Ludewig

Matthew Jacob Behmlander

Fernando Martinez Diez

Alan L Kilty

Matthew Mark Robinson

Michael Alan Brewer

Josh E Huang

April J Lu

Kevin S Stump

A system for positioning a tool or a component on a workpiece may include a laser configured to project a laser point on the workpiece. The laser may include a field of view and the laser may project the laser point upon objects within the field of view of the laser. The system for positioning a tool on a workpiece may also include a fixture configured to position the tool on the workpiece. The fixture may include a laser indicator configured to be aligned with the laser point projected on the workpiece. The fixture may also include a first tool receptacle configure to receive the tool and locate the tool on a portion of the workpiece outside the field of view of the laser.

Laser projection hardware positional device

A structural member includes a body having a first surface, a second surface, and an end surface at an end portion of the structural member. The end portion of the structural member includes a root protrusion extending radially outward from the second surface of the structural member along a root protrusion radius to an outer end of the root protrusion to define a root protrusion height extending from the second surface of the structural member to the outer end of the root protrusion. The root protrusion further includes a root protrusion width extending between an inner edge and an outer edge of the outer end of the root protrusion. The root protrusion radius, the root protrusion height, and the root protrusion width are configured to define a stress protected weld root region isolated beyond and away from a root stress flow path propagated through the body of the structural member.

Structure having stress protected groove weld and structural members forming the same

A structural member is disclosed. The structural member includes a body having a first surface, a second surface, and an end surface at an end portion of the structural member. The end portion of the structural member includes a root protrusion extending radially outward from the second surface of the structural member along a root protrusion radius to an outer end of the root protrusion to define a root protrusion height extending from the second surface of the structural member to the outer end of the root protrusion. The root protrusion further includes a root protrusion width extending between an inner edge and an outer edge of the outer end of the root protrusion. The root protrusion radius, the root protrusion height, and the root protrusion width are configured to define a stress protected weld root region isolated beyond and away from a root stress flow path propagated through the body of the structural member.

A dual-weave welding system is disclosed. The system may have a first welding device configured to create a weld joint in a gap between two or more work pieces by moving a first welding component along a first weaving path. The system may also have a second welding device configured to create the weld joint in the gap by moving a second welding component along a second weaving path. The system may further have a controller that sends commands to control the movement of the first welding device and the second welding device.

Systems and methods for dual-weave welding

A welding torch includes a nozzle with a first welding wire guide configured to orient a first welding wire in a first welding wire orientation, and a second welding wire guide configured to orient a second welding wire in a second welding wire orientation that is non-coplanar and divergent with respect to the first welding wire orientation. A method of welding includes moving a welding torch with respect to a workpiece joint to be welded. During moving the welding torch, a first welding wire is fed through a first welding wire guide defining a first welding wire orientation and a second welding wire is fed through a second welding wire guide defining a second welding wire orientation that is divergent and non-coplanar with respect to the first welding wire orientation.

Dual wire welding torch and method

Growing community of inventors

Peoria, IL, United States of America

Keith Egland