Vinyl Window Frame Weld Strength Inspection

Inspection template for verifying fusion weld strength, corner cleaning, and visible weld quality on welded vinyl window frames to catch weak corners that can lead to field failures and air leakage.

Inspection Details

• Frame identification recorded
  Record the frame or order identifier, profile system, and production lot for traceability.
• Inspection stage selected
  Select where this inspection is being performed in the process flow.
• Inspector name or ID recorded
  Enter the inspector name or employee ID for traceability.
• Inspection date and time recorded
  Capture the date and time of the inspection.
• Reference specification or SOP available
  Record the applicable product specification, work instruction, or SOP used for acceptance criteria.

Weld Setup and Visual Condition

• Correct profile material and color verified
  Confirm the welded frame matches the specified vinyl profile, color, and configuration.
• Corner welds fully fused with no visible open seam
  Inspect each corner for continuous fusion with no visible separation at the weld line.
• Weld bead is uniform and consistent around the corner
  Rate the visual consistency of the weld bead and corner appearance.
• Corner alignment within specification
  Measure corner squareness or alignment deviation if applicable to the product specification.
• No burn-through, voids, or cold weld indicators
  Check for burn-through, voids, weak fusion, or other visible indicators of poor weld quality.

Corner Cleaning and Finish

• Excess weld flash removed from visible surfaces
  Verify that weld flash has been cleaned from the visible corner surfaces without damaging the profile.
• Corner cleaning does not expose gaps or weaken the weld
  Confirm that cleanup operations did not create gaps, gouges, or reduced weld integrity at the corner.
• Surface finish free of gouges, smears, or excessive tool marks
  Inspect the cleaned corner for cosmetic or process damage that could indicate improper finishing.
• Corner appearance matches approved sample
  Compare the finished corner to the approved visual standard or golden sample.

Strength and Defect Indicators

• No visible cracking at the weld line or adjacent profile
  Inspect the weld and adjacent material for cracks, splits, or stress marks.
• No evidence of corner separation under light manual pressure
  Apply only the approved light manual check, if permitted by the SOP, to confirm the corner does not separate or flex abnormally.
• Weld strength test result recorded
  Record the result of any applicable destructive or non-destructive weld strength test, including method and outcome.
• Potential air leakage risk at corner identified
  Identify whether the corner shows any visible condition that could contribute to air leakage, such as gaps, incomplete fusion, or distortion.

Disposition and Sign-Off

• Inspection result
  Select the overall disposition for the frame.
• Deficiency description documented
  Describe any non-conformance, defect location, and observed condition.
• Corrective action assigned
  Document the corrective action, owner, and due date if rework or rejection is required.
• Inspector signature
  Inspector sign-off confirming the inspection findings.