Prevent Wire Strand Splay In Terminal Crimping With Crimp Tool Calibration

Copper strand splay occurs when individual wire conductors fan out before or during compression, reducing electrical conductivity and mechanical retention. Correcting manual procedures across wire stripping, insertion, and crimping eliminates core distortion completely.

Precision Wire Stripping Techniques

Executing a partial strip leaves insulation partially attached, preserving natural strand twist prior to terminal entry. Stripping dimensions must match conductor dimensions precisely; a 0.5mm² wire requires a strict 1.10mm strip length to guarantee uniform insertion.

Standardized Core Insertion Rules

Proper alignment into the terminal barrel prevents stray strands from catching outside the crimp zone. Operators using a contact crimping tool must verify complete conductor positioning while ensuring exposed copper past the front face remains below 1mm.

1. Maintain core integrity without twisting strands manually.

2. Insert stripped wire into the terminal until fully seated inside the conductor zone.

3. Inspect terminal tip to confirm exposed copper remains within 1.0mm tolerance.

Single-Stroke Crimp Execution

Applying single-stroke compression avoids material fatigue and core displacement. When employing a deutsch stamped contact crimper, sequence hand pressure from the insulation barrel toward the wire tip to push loose copper inward during jaw closure.

1. Position ratchet crimp tool square to terminal axis.

2. Apply continuous pressure until full ratchet release cycle completes once.

3. Use a crimp pin extractor tool for non-conforming assemblies rather than re-striking pins.

Wire Specification and Strip Length Reference