Welding Electric Supply TRIZ Cases

Multiple secondary windings with rectifier branches and current limiting sustain weld current on aluminum while reducing space and cycle time.

A sensor placed between power plates tracks semiconductor junction temperature to detect cooling faults and predict wear before failure.

A staged current profile removes surface oil before nugget formation, preventing electrode fusion and uneven weld growth.

A two-stage current and pressure-hold welding approach suppresses liquid metal embrittlement cracks while securing nugget diameter in galvanized steel joints.

Two-stage current control and sheet shoulder-angle tuning suppress liquid metal embrittlement cracking while holding nugget diameter in spot welding.

Alternating high and low current in pre-energization grows the nugget quickly while limiting spatter and fusion-zone temperature spikes.

Pulsed post-weld current with increasing stop intervals suppresses blowholes in aluminum spot welds and reduces electrode dressing frequency.

Controlled ferrite, martensite, and tempered martensite near the nugget edge improve weld strength and delayed fracture resistance.

Discrete resistance-welded carbide inserts enable at least 15 teeth per inch, improving oscillating multi-tool cutting efficiency and blade life.

Two-stage current with pressure hold limits shoulder cracking from liquid metal embrittlement while keeping nugget diameter stable in galvanized steel spot welds.

Secondary energization tempers the nugget edge in high-strength steel spot welds, reducing brittle fracture and improving cross-tension strength.

Insulative small-diameter electrodes curb current shunting and heat issues, enabling resistance welding on flanges 10 mm or less.

Direct range-finder measurement of pressed steel sheet surfaces detects welding gaps before current is applied, improving spot weld quality.

Two-stage current control and shoulder-angle tuning suppress weld cracking while keeping nugget diameter stable in galvanized steel sheets.

A step-down preliminary current profile expands the alloy layer before main welding, helping form larger nuggets with less spatter.

A two-stage current profile with a pause and angle-based reheating prevents weld cracking in coated steel sheets while maintaining joint strength.

Automatically extracted features from welding time-series monitoring data enable accurate in-process quality judgment without manual thresholds.

A staged welding current profile reduces spatter and uneven heat generation across stacked metal plates to improve nugget uniformity and penetration.

Controlled heat-affected-zone microstructure limits hydrogen buildup at the nugget edge, improving delayed fracture resistance in high-strength steel spot welds.

Quenching then re-energizing the weld end region tempers 1.5 GPa steel joints, lowering hardness and improving delayed fracture resistance.

A staged first and second current softens the interface before bonding, cutting welding load while preserving metal strength in solid-state joining.

A two-step spot welding sequence uses initial spatter to discharge hydrogen sources, then grows a large nugget without losing joint strength.

Post-tempering creates tempered martensite and carbide-rich soft nugget regions to reduce brittle fracture and raise cross tension strength.

Test-weld voltage data and adaptive current control keep nugget diameter and joint strength stable despite shunting and sheet gaps.

A staged spot-welding current profile limits current diversion and molten metal ejection, reducing burrs in closely spaced multi-plate welds.

Multiple current pulsations with set cooling intervals widen the welding range and cut electrode wear in Al-coated press-hardened steel.

Controlled post-heating and tempering refine grains and carbide density in high-carbon steel spot welds to raise cross-tensile strength and toughness.

Pulsed current with short peaks and cooling intervals enables nugget growth in thick-ratio laminates while inhibiting expulsion.