An example welding interface device, includes: a user interface device; a processor; and a machine readable storage device comprising machine readable instructions which, when executed by the processor, cause the processor to: determine, via the user interface device, information describing physical characteristics of a workpiece for a weld to be performed; based on the physical characteristics, determining at least one of a thermal characteristic of the workpiece, an electrical characteristic of the workpiece, or a chemical characteristic of the workpiece; determine a boundary condition associated with the workpiece based on the at least one of the thermal characteristic, the electrical characteristic, or the chemical characteristic; and output a welding process based on the boundary condition.

The invention is an apparatus and method for Orbital welding of pipes or pipe segments together to form a pipeline, i.e., Orbital welding. A scanner welding unit, a control unit and a welding unit are combined to travel along and above a seam, which is formed between two interfacing base/cylindrical surfaces of every two pipe or pipe segments, scan the pipes/pipe segments relative positioning, alignment and levelling, and their surface geometry and topography and overlay a welding material starting from the root layer at the bottom of the seam and up to its edge and sealing it with a capping layer. The welding unit lowers a welding tip into the seam that may rotate on its axis at different angels relative to the surface during welding. The scanner unit may alert on mismatches on the relative position of the pipes/pipe segments before or after welding and in some cases enable repositioning for a more hermetically sealed weld.

A consumable electrode arc welding method using a shielding gas containing argon comprises: setting a first welding condition in which a first welding current is supplied to a welding wire; and setting a second welding condition in which a second welding current is supplied to a welding wire. The first welding condition and the second welding condition are welding conditions in which a reference current of the welding current is 350 A or higher and a current variation range is from 50 A to 150 A, and the first welding condition and the second welding condition are switched at a cycle of a frequency ranging from 1 Hz to 5 Hz.

Systems and methods for part tracking using machine learning techniques are described. In some examples a part tracking system analyzes feature characteristics related to one or more welds to identify, determine characteristics of, and/or label one or more parts repeatedly assembled by the welds. Identifying parts assembled from the welds may make it possible to do part based analytics (e.g., related to part quality, cost, production efficiency, etc.), as opposed to just weld based analytics, on past welding data. Additionally, identifying a part assembled from several welds results in an ordering of those several welds used to create the part, which can make it easier to compare/contrast similar welds across parts. Further, determining the characteristics of the parts can assist in configuring certain part tracking systems, thereby reducing the expertise, time, and personnel required.

A welding system includes a power source configured to generate power and deliver the power to a welding torch. The power is provided in accordance with an electrode negative pulse welding regime that includes a cyclic peak, followed by a stabilization phase, then a return to a background level. The stabilization phase has a generally parabolic current shape, and is performed in a current-closed loop manner until a transition point. Resulting weld performance is improved, with a globular-like transfer mode, reduced shorts and enhanced arc stability.

A system includes one or more sets of reflective visual markers, a light source configured to emit light, and a controller communicatively coupled to the light source. Each set of reflective visual markers is coupled to a component of a welding system. Each reflective visual marker is configured to reflect the emitted light received from the light source towards one or more cameras. The controller is configured to control illumination settings of the light source based at least in part on a status of the welding system being utilized to perform a live-arc welding operation.

A welding electrode apparatus may be mounted to a robot that presents it to a workpiece along a pre-programmed path conforming to the surface of the workpiece. The welding electrode apparatus has a first drive for rotating the welding electrode about its own axis. The electrode handle has a second rotating drive having an imbalance to impose vibration on the welding rod transverse to the axis of the rod. The first drive may turn relatively slowly; the second drive may turn more quickly. The first drive has an electrical pickup by which to carry DC power to the electrode. The two rotating drives impose two frequencies of vibration into the apparatus, causing a make-and-break contact for low power spark deposition, while at the same time causing the electrode to bounce and impact the surface. The forward end of the apparatus may include a cowling and a delivery line to provide shielding gas to the electrode.

Disclosed example power supplies, user interfaces, and methods provide for monitoring, analysis and/or presentation of input power characteristics for a welding-type power supply and/or wire feeder. A welding system includes a power supply to deliver power to a welding torch based on one or more input power characteristics. The input power characteristics may correspond to received input power characteristics values during a welding procedure. The input power characteristics are responsive to the power demanded during the welding operation and may change accordingly. To maintain an accounting of the input power characteristics and their values as they change during the welding operation, control circuitry may receive information regarding the input characteristics, analyze the information, and/or generate presentable indicators for display on one or more graphical interfaces.

Systems and methods are disclosed relating to welding sequence guidance using three-dimensional (3D) models. In some examples, a welding sequence program may use 3D models, rather than two-dimensional (2D) images, to guide operators through welding sequences. Since only one 3D model must be saved for each sequence, rather than potentially hundreds of 2D images, substantial memory space may be saved. Additionally, the same 3D model may be used for several welding sequences. Further, the 3D model may be animated to help the operator understand changes in perspective between steps of the welding sequence.

A welding system and method provide for generating a controlled waveform for welding power output, the waveform comprising a plurality of successive peak phases followed by a short circuit between a welding wire electrode and an advancing weld puddle. Each then present peak phase is regulated based upon at least the immediately preceding short circuit to control the short circuit that will occur following the then present peak phase. Some embodiments permit regulating at least one waveform phase based upon at least the immediately preceding short circuit to control the next short circuit that will occur, and regulating at least one short response phase based upon at least the immediately preceding short circuit to control the next short circuit that will occur.