An "inadequate welding" issue has been identified in the energy storage stud welding machine, which may be caused by the following 8 types of reasons, listed in order of investigation priority:
Welding parameter setup issue
Current/voltage mismatch：
PerformanceInsufficient thread melt depth or incomplete base material fusion.
ResolveAdjust parameters based on material thickness (e.g., for 1mm steel plate, set 800-1200A, welding time of 80-120ms).
Welding time too short：
PerformanceThe stud and the base material did not form an effective melt pool.
ResolveGradually increase welding time (adjusting by 5-10ms each time).
2. Electrode and Gun Head Status
Electrode Tip Wear：
PhenomenonThe electrode tip end face indentation is greater than 0.5mm, leading to energy dispersion.
ProcessReplace electrode tip or grind repair (ensure end face flatness <0.05mm).
Gun head insulation damage：
ConsequencesCurrent分流, welding energy attenuation.
MeasuresReplace insulating sleeves or apply high-temperature insulating coatings.
3. Material Surface Treatment
Oil stains/Oxidation layer：
ImpactObstructs metal atomic diffusion, reducing bonding strength.
CountermeasurePre-weld cleaning with acetone, and sandpaper grinding to remove oxidation scales.
Bolt diameter mismatch：
QuestionExcessively thin stud diameter leads to a small molten pool, or overly thick diameter causes burn-through of the base material.
SolutionSelect bolt diameter based on the thickness of the base material (e.g., 3mm thick steel plate is suitable for M6 bolts).
4. Hardware Equipment Failure
Capacitor Aging：
PerformanceStorage voltage drop, insufficient welding energy.
InspectionMeasure capacitor voltage with a multimeter (should be within <5% of the set value).
Poor cable connection：
ConsequencesIncreased contact resistance leads to higher energy loss.
InvestigationInspect cable joints for looseness and sand down the oxidation layer with sandpaper.
5. Workplace Environment
Excessive environmental temperature：
No content provided for translation.The device's poor heat dissipation triggered the overheat protection.
MeasuresIncrease ventilation or pause welding to cool down equipment.
High humidity：
RiskCondensation on the base material surface led to welding porosity.
PreventPreheat the welding area with a heat gun before welding.
6. Welding Positions and Structures
Welding Angle Deviation：
ImpactThe stud and base material are not perpendicular, leading to an asymmetric molten pool.
No Chinese content provided.Ensure the angle between the gun tip and the surface of the base material is less than 5°.
Material gap too large：
ConsequencesThe molten pool failed to fill the gap, resulting in a false焊.
ResolveUtilize clamps to secure bolts or adjust welding sequences.
7. Protection of gases or cooling issues
Insufficient Cooling：
PerformanceThermal overheating of the gun head led to electrode head adhesion.
MeasuresInspect cooling water circulation or increase wind cooling intensity.
Gas Protection Failure(If using a gas shield type):
ResultsWeld seam oxidation, strength degradation.
CountermeasureAdjust the gas flow rate (typically 8-12L/min).
8. Welding Program and Software Malfunction
Software Error：
MaybeWelding parameters were mistakenly altered or the incorrect program was called.
ResolveReset to factory settings and recalibrate parameters.
PLC Failure：
PhenomenonWelding sequence disruption and abnormal energy output.
ProcessedContact manufacturers to update control programs or replace control modules.
Rapid Diagnostic Flowchart：
Parameter Inspection → Electrode/Nozzle Maintenance → Material Cleaning → Equipment Hardware → Environmental Factors
Through systematic inspection, we can efficiently locate and resolve the "inadequate welding" issue, restoring the equipment to normal performance.
