Arc Welding Apparatus TRIZ Cases

A movable dual-hammer micro-forging stage works with melt deposition to refine coarse directional grains and improve defect control.

Laser welding and post-perforation let optical fiber sensor tubes reach 1 mm diameter while avoiding fiber damage, hole deformation, and excess weight.

A unified controller coordinates engine speed and generator output to match welding loads, cutting idle fuel use and noise.

Artificial aging strengthens aluminum-steel TWB weld seams above the base material, preventing localized deformation without quenching.

A Tee-section cross-frame connection for skewed bridges cuts fatigue and corrosion risk while simplifying welding, airflow, and installation.

Argon-rich shielding gas and matched current, speed, and nozzle diameter keep slag buried in oxide film to protect coating quality and corrosion resistance.

A feedback loop cancels inductive voltage drop in remote arc measurements, improving welding voltage accuracy without extra sensors.

A trailing electrode wire feed starts before contact, enabling reproducible arc ignition and more accurate weld seam positioning.

Electrode position data during spot welding enables non-destructive defect inspection across multiple welds without extra sensing equipment.

Electrical potential sensing self-adjusts welding wire feed speed to maintain weld pool contact and improve seam consistency.

Thermal output and emission monitoring enable closed-loop stud welding control for more consistent joints and objective quality assessment.

A rutile flux-cored wire balances slag-supported positional welding with strong, tough weld metal for austenitic CrNi steels at low temperatures.

Switching a welding power supply between DC and AC without stopping the arc helps prevent weld puddle cooling, fusion defects, and arc blow.

Reverse-polarity arc welding and low-oxidizing shielding gas cut slag and oxides, improving coating formation and weld corrosion resistance.

A radially expanding elastic casing creates a vacuum-tight annular cavity for compound filling, preventing bubbles and media penetration.

High-speed wire feed and large current create a buried arc that enables single-pass thick plate welding while limiting bead disorder, deformation, and embrittlement.

By keeping the HAZ outside the weld crevice and improving filler and alloy composition, this case shows how stainless steel joints resist crevice corrosion.

Controlled Mo, Nb, and B in an austenitic stainless steel weld joint suppress carbide formation to resist SCC, corrosion, and creep damage.

A motion-assist torch automates arc pulsing and tip travel to make evenly spaced tack welds with lower heat input and less operator skill.

A sensor reads drive roll position to identify wire type and diameter, cutting welding setup errors and manual parameter entry.

Timed high-frequency pulses at resonant voltage peaks enable reliable contactless arc ignition with lower circuit complexity and safety compliance.

Controlled current changes let a welding power supply calculate circuit inductance and electrode resistance in real time without dedicated sense leads.

Controlled weld toe angle and weld hardness improve fatigue strength in 780 MPa steel fillet joints without added post-weld processing.

Adds pulsed welding to constant-current machines by modifying the pedal control signal, reducing heat warping and improving weld uniformity.

A segmented filler neck and flexible hose improve fuel tank alignment, cut packaging space, and reduce heat and vibration damage.

Optical sensors on the welding torch track travel speed and direction in real time, helping control heat input and improve weld consistency.

An arc-welded through-hole joint joins similar metals while compressing a dissimilar layer, cutting cycle time and improving stiffness.

A unitary wire-feed block and quick-release tensioner simplify loading, cut torch weight, and reduce weld wire jamming.

A high-chromium nickel-base weld alloy balances SCC resistance, ductility, and crack resistance for nuclear repair welding.

Low-carbon weld metal with tuned Mo, Nb, and B balances polythionic acid SCC resistance, naphthenic acid corrosion resistance, and creep ductility.

Lower iron, silicon, and boron levels make aluminum-magnesium welding wire draw cleanly without fractures while maintaining strength.

Gap voltage and facing area are used to adjust wire EDM feed rate, keeping gap distance stable and improving corner-path accuracy.

A switched impedance path speeds trailing-edge current decay in pulsed welding, helping molten metal detach cleanly and reducing spatter.

Dual rectifying plates and air knives shield the laser path from spatters, plasma, and fumes while stabilizing the molten pool.

Non-consumable arc welding joins lead alloys faster than lead burning while controlling oxidation, defects, and operator hazards.

An auxiliary charger keeps the welding battery at float charge during low-load periods, cutting fuel use while preserving high-power readiness.

Alternating wire feed and reverse-feed peak control keeps short-circuit time low in aluminum arc welding, reducing spatter and stabilizing bead shape.

Three offset rollers shape welding wire into a defined zig-zag path, stabilizing contact in the sleeve while reducing friction and arc fluctuation.

Real-time preheating current and wire feed adjustment compensates CTWD changes to stabilize arc heat input, deposition, and spatter.

A low-conductivity shielding member blocks welding radiation heat, preserving sensor accuracy and durability under thermal expansion.

A weld pool with slow cooling and rotary wire brush heating secures tungsten carbide to steel studs for longer wear life and ice traction.

A return-path switching module cuts current during short-circuit clearing in AC welding to reduce spatter while maintaining speed and deposition.

A hollow current-carrying electrode feeds powder through its core, letting welders tune superalloy deposit composition without changing filler wire.

A zinc concentration gradient in the joint suppresses intermetallics and blowholes at the root, improving peel and tensile strength.

Heating only 3%-40% of a seam-welded pipe section reduces residual stress and improves reel-lay suitability without full-length heat treatment.

Internal and outer supports let a strip be welded onto a collapsible container without collapse, improving controlled material dispensing.

Alternating high- and low-current TIG welding phases with ignition pulses maintain electrode heat for reliable arc re-ignition and controlled energy input.

Pre-bending clad plate edges keeps the clad layer at the weld, enabling continuous high-frequency pipe welding without repair steps.

Pre-weld carbide dissolution and controlled post-weld precipitation help ferritic steel welds resist Type IV creep damage without high boron.

A nickel-rich core inside an iron sheath delivers AWS-compliant high-nickel weld beads while avoiding costly nickel sheet electrode construction.