Welding Electric Supplies TRIZ Cases

A softened surface layer with controlled hardness helps resistance spot welded steel sheets avoid LME cracking while maintaining joint strength.

A communication device copies welding joint data between controllers, enabling fast weld reassignment after tool failures without quality loss.

By reshaping electrode resistivity and current polarity, this case positions weld nugget initiation for lower energy use and stronger joints.

A transformer-free supercapacitor welding circuit uses MOSFET switching to cut inductive and rectifier losses while stabilizing weld voltage.

A supercapacitor bank and MOSFET switching deliver genuine DC welding without transformers or rectifier diodes, cutting losses and stabilizing welds.

A supercapacitor bank and MOSFET switching replace transformers and rectifiers to cut welding losses and stabilize weld voltage.

A supercapacitor bank and MOSFET switching replace transformers and rectifiers to cut welding losses and improve weld consistency.

Variable PWM pulse targets keep the welding current rise slope constant during waveform overlap, stabilizing heat input and weld quality.

Two-stage DC-chopped pulse current controls nugget growth in mixed-thickness sheet laminates, improving weld stability while suppressing expulsion.

A supercapacitor bank and MOSFET switching replace transformers and rectifier diodes to cut losses and deliver consistent weld voltage.

Controlled tempering creates ferrite and tempered martensite at the nugget edge to stabilize cross tension strength and resist delayed fracture.

Real-time resistance and expansion feedback adjusts welding current so nugget diameter reaches target size even when plate gaps disturb spot welding.

Adaptive pre-conditioning pulses cut oxide-film resistance before spot welding, preventing overheating and improving weld consistency.

Controlled hardness zones and post-weld tempering reduce nugget-edge embrittlement in high-strength steel spot welds and improve CTS.

Switchable transformer polarity with two series transistors avoids part magnetization and reduces electrode erosion without extra cabling.

Real-time indentation depth and dynamic resistance feedback let a spot welding gun self-calibrate weld quality and prevent defects.

Variable compression and current remove plating-related surface impurities before joining, improving solid-state weld interface strength.

A staged load sequence forms protrusions, concentrates Joule heat, removes plating, and improves solid-phase spot joint quality.

Localized protrusion heating cuts contact area before current flow, enabling solid-phase spot joining with stronger, more reliable interfaces.

A staged press-release-current sequence removes plating impurities before solid-state joining, improving weld quality on surface-treated metals.

Three-pulse resistance spot welding controls nugget growth and tempering to suppress LME cracks and improve galvanized steel joint plasticity.

A staged current-cooling sequence aligns weld heat patterns to keep nugget diameter stable and avoid expulsion under shunting or sheet gaps.

Adaptive pre-conditioning pulses cut oxide-film resistance before spot welding, preventing overheating and improving weld quality.

A two-transistor polarity-switching welding transformer avoids DC magnetization while cutting losses, wiring burden, and installation space.

Preliminary current feedback matches stored heat patterns to keep nugget diameter stable and avoid expulsion despite shunting and sheet gaps.

Configurable series or parallel power modules with temperature feedback let one resistance welding setup handle multiple thermoplastic weld types.

Programmable A/D conversion evaluates welding current, voltage, load, and head displacement for fast nondestructive weld quality checks.

Induction tempering after resistance welding reduces hardness in quenched high-carbon steel joints, helping prevent brittle crack formation.

Three welding pulses control nugget growth and temper the weld, suppressing LME cracks and improving fracture resistance in galvanized high-strength steel.

A deformation suppressing unit enables strong press-fit bonding of dissimilar metals while limiting upset, radial deformation, and burr formation.

Test weld heat curves and live electrode signals set adaptive current control to keep nugget diameter stable and prevent expulsion.

Adaptive heat-generation targets and stepwise current control maintain nugget diameter despite electrode wear, shunting, and sheet gaps.

Real-time electrode force feedback pauses and resumes welding current to prevent expulsion and maintain a large, stable nugget.

A staged fusion-zone forming, cooling, and adaptive current sequence keeps nugget diameter stable and avoids expulsion under shunting and sheet gaps.

Controlled squeeze and hold times help spot weld zinc-plated steel sheets while suppressing liquid metal embrittlement cracks and preserving joint strength.

Rapid SCR-based polarity switching balances heat in DC resistance spot welding, improving weld consistency and reducing electrode wear.

Direct current micro pulses extend electrode life and enlarge the weld current range for stable resistance spot welding.

Two-step resistance spot welding controls cooling and postheating to reduce phosphorus segregation, improving joint strength without extending operation time.

Adaptive control adjusts current passage to match cumulative heat generation, preventing splashing during electrode wear.

Branch current delays molten pool formation at high resistance interfaces during multi-layer steel plate welding.

Multi-stage current control in resistance spot welding establishes stable nugget formation through adaptive heat generation.

Transistor polarity switching breaks aluminum oxide layers and prevents magnetization, reducing cycle times.

Synchronizes forging phase with post-heating to prevent electrode degradation and enhance weld reliability.

A probeless energy delivery controller estimates weld piece resistance to adjust voltage phase angles for precise power management.