Arc Welding Apparatus TRIZ Cases

Brief pulse voltage and current data from feeder attachment events improve cable length compensation and reduce welding setup time.

Contact is detected before welding power is applied, then the wire is held to start the arc faster with less spatter and lower mechanical complexity.

3D measurement guides robotic welding to fill grinding pits in steel castings while reducing smoke, noise, and electromagnetic interference.

Transverse force from primary and secondary pressing surfaces forms complex 3D sheet shapes with fewer parts, less welding, and low power use.

Surface detection triggers pre-cleaning and parameter adjustment to cut porosity and stabilize aluminium stud joining quality.

Intermittent wire feed uses contact timing feedback to adapt feed speed and keep TIG weld seams uniform despite angle and distance changes.

Optical arc sensing uses emitted light instead of voltage signals to avoid electrical interference and improve automated welding control.

Cold-rolled steel strips are welded into furcated fence posts, enabling lower-cost production, pre-coating, cutting, and hole punching.

Dynamic control of short-circuit and arc phase timing lowers current and spatter while keeping arc welding stable.

A pre-machined non-through hole enables arc welding of overlapping non-ferrous plates without backing jigs and supports weld strength inspection.

Integrated sensing and control verify input power polarity before welding output is enabled, preventing cable misconnection errors.

Statistical analysis of weld reports sets parameter limits, removes outliers, and enables real-time weld validation with fewer manual reviews.

A flat-bottom housing with separable sections opens wide access to drive and pressurization rollers for easier cleaning and replacement.

Alternating DCEN/DCEP polarity vibrates the molten pool to vent zinc vapor and cut porosity in high-strength zinc-coated steel lap welds.

Controlled Cr carbide occupancy in the heat affected zone helps Ni-Fe-Cr welded joints resist intergranular corrosion after welding.

Periodic arc ON/OFF and pulse current control forms consistent scaly beads at higher welding speed while reducing burn-through and pits.

Boron-rich grain boundaries and controlled brazing heat suppress LME cracking in zinc-plated steel lap joints while preserving strength.

Projections and a controlled gap enable one-sided arc welding of similar metals while compressing a hard-to-weld insert for faster, aligned joints.

Controlled alloy composition and weld heat input help slurry pipes resist wear, keep low-temperature toughness, and limit hot cracking.

Alternating two AC TIG cycles with lower positive and higher negative current stabilizes the arc, improves degassing, and deepens penetration.

Air-hardened high-strength steel enables direct forming and fusion welding while keeping weld seam fatigue strength close to the base material.

Multiple 1:1 transformers with parallel primaries and series secondaries simplify welding arc starting while cutting losses and cooling needs.

By calibrating weld-circuit resistance and inductance during a tip short, remote voltage sensing can estimate true arc voltage without extra sensors.

A guided jump liner and pneumatic seal keep a removable MIG gooseneck aligned, rotatable, and stable for consistent wire feeding.

A reduced-current lowering phase during process changes prevents stickout thermal overload, stabilizing arc length and weld quality.

Shorter wire protrusion at arc start and faster feed in main welding stabilize ignition, limit wire deformation, and avoid longer cycle time.

Single-pass multi-layer welding controls layer area and bead shape to prevent hot cracking and lack of fusion in 50 mm+ steel joints.

Multi-layer weld geometry controls heat input in 50-160 mm steel plates to avoid hot cracking and lack of fusion while preserving low-temperature toughness.

Torch-mounted control adjusts voltage and wire feed speed during welding to match changing workpiece thickness and reduce weld defects.

Dynamic current control uses output voltage feedback to mimic DC generator arc behavior, reducing sticking and improving pipe welding control.

A pre-melted and re-solidified HPDC aluminum zone cuts gas and blowholes, enabling stronger joining to iron while limiting intermetallics.

Control circuitry uses sensed voltages and short-circuit flick starting to automate TIG gas preflow and postflow while reducing contamination.

A stainless-clad carbon steel chequered sheet solves corrosion, low strength, and delamination while preserving weldability and surface quality.

Bulging and protruding plate features suppress root gap growth and stress concentration, improving thin-sheet lap weld fatigue strength.

Sensors on the welding helmet track torch position and speed in real time, helping manual welders maintain consistent travel and weld quality.

Store-amount feedback tunes pull-feed waveform parameters to keep arc welding stable during abrupt condition changes.

High-tensile weld material enables smaller tube grooves and reduced tube pitch in EO reactors, fitting 7% to 14% more tubes.

An optical measuring device tracks seam position before, during, and after welding so controllers can correct the path and reduce weld defects.

Peak current is adjusted each wire-feed cycle to keep short-circuit time in range and stabilize bead shape during CMT additive manufacturing.

A bidirectional charge-discharge circuit lets one welding power path both charge the battery and supply arc current, cutting parts, cost, and footprint.

A motor-driven potentiometer lets welders adjust arc current remotely, improving process flexibility without manual contact at the machine.

Integrated gas delivery, polarity switching, and electrode vibration improve low-energy welding access and weld quality in tight locations.

Independent seam sensing lets the controller adjust the welding path in real time, improving weld quality and reducing rework and scrap.

Preset weld gaps and carbon-manganese filler wire control brittle intermetallics in aluminum-plated steel, preserving strength and ductility after hot stamping.

Low-manganese welding consumables use strengthening and grain-control agents to cut Mn fumes while maintaining strong, tough weld deposits.

Controlled 1500-2500 A short-circuit current and fixed polarity help release wire-to-base short circuits quickly and restore a stable arc.

Peak-limited short-circuit current and delayed polarity switching help submerged arc welding restore a stable arc and avoid weld quality loss.

A guide plate and reverse rotation separate magnet-carried bolts before the selection gap, preventing tangling and one-by-one misfeeds.

Separate energy sources initiate and widen the meltpool, enabling bead shape control, higher build rates, and fewer fusion defects.

Alternating wire feed and limiting short-circuit current helps aluminum arc welding cut spatter despite low-resistance arc detection.

A welded two-piece stainless steel handle uses an elongated tang and guide pieces to prevent breakage while staying comfortable and sterilizable.

Focused laser annealing softens weld heat-affected zones in vehicle body assemblies, reducing distortion, micro cracking, and corrosion.

By suppressing droplet transfer in the final pulse cycle, this welding sequence stabilizes pulse-to-short-circuit switching and prevents spatter.

Optimized Nb, REM, S, and O balance suppresses Cr oxide, stabilizes the arc, and improves bead shape in automated high-Cr welding.

Motion sensing in a welding torch lets the power source ramp up before demand, cutting idle energy waste and avoiding startup delay.

Pre-detecting plate gap changes lets the controller adjust current, voltage, and torch speed early for stable high-speed welding.

One feeder base fits multiple motor types while insulating the motor from the drive assembly to simplify parts and attachment.

Automatic adjustment of wire feed, current, polarity, and voltage stabilizes welding phase transitions, improving seam quality and reducing spatter.