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.