Cable Assembly Quality Records: Crimp Validation, Pull Tests and Traceability

Crimp Validation at Setup and During the Run

The crimp is the most common failure point, so evidence of control is the first record customers ask for. At each setup, record the terminal and wire combination, applicator ID, crimp height or cross-section measurement as the terminal specification requires, pull force results on a sample, and the first-piece visual check of conductor brush, bellmouth and insulation support. During the run, record periodic checks at a stated frequency and after any adjustment or tool change.

Tie the record to the job and the applicator so a worn tool can be found by history, not by memory.

• Terminal, wire and applicator identification
• Crimp height or section measurement against spec
• Pull force sample results
• Visual check and sign-off
• Frequency and trigger for re-checks

Electrical Test Results Per Serial Number

Every harness normally gets a continuity and shorts test, and many get a high-potential or insulation resistance test according to the drawing. Store the pass or fail result with the serial number, the tester and program revision, the date and the operator. If the tester can export a report, link it instead of retyping.

For repeat customers, keep the test program revision under change control, because a modified program that skips a net is an expensive hidden defect.

Lot Genealogy: From Component Back to Harness

Receive wire, terminals, seals and connectors with lot or date code, and pick them against the job so the lot is recorded in the build. For wire cut from a spool, capture the spool lot, and for partial spools, the remaining length. A good test: take a terminal lot at random and produce, in minutes, the list of harness serial numbers and customers that received it.

If that takes a day of paper searching, a supplier recall would hurt. ERP lot tracking plus a kit-issue scan makes this routine.

• Lot or date code recorded at receiving
• Lot selected at kit issue, not guessed later
• Serial-to-lot genealogy report in both directions
• Customer-supplied part lots recorded

Nonconformance, Rework and Corrective Action

Record each defect with its type (wrong terminal, insulation damage, missing seal, wrong length), where it was found and the disposition. Rework should be tracked as hours against the job, since it often hides inside labor variance. Look at defects by operation, operator, applicator and component lot, and open corrective actions when a pattern repeats.

For IATF 16949, AS9100 and ISO 13485 customers, expect formal corrective action and containment requirements, with objective evidence.

Tool and Gauge Control

Calibration records for micrometers, crimp height gauges, pull testers and electrical testers matter in audits, as does a maintenance record for applicators. Track due dates in the system and block use of out-of-calibration equipment where you can. Include the calibration status in the evidence you give to customers who audit your process.

Keep It Light Enough That People Use It

Records that need five minutes of typing at the machine get skipped. Use barcode scanning for job, lot and applicator, pick lists instead of free text, and automatic capture from test equipment where possible. AI can help afterwards by summarizing defect patterns and drafting corrective action text from the records, with a quality manager approving.

If you have low volume and a single customer without traceability flow-downs, a simpler paper traveler may be adequate.