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What is Wire Fusing?

Published in Wire Processing 2 mins read

Wire fusing, also known sometimes as hot crimping, is a specific process used to prepare the ends of stranded wire for connection.

Understanding Wire Fusing

Wire fusing is a process in which stranded wire is compacted and welded into a desired shape in order to better facilitate attachment to other components. This technique prepares the wire end, making it more solid and manageable than loose strands.

It's important to understand that this process goes beyond simple mechanical compaction; it involves welding the strands together, creating a single, fused unit at the wire end.

The Process Explained

The wire fusing process typically involves:

  • Compacting: The individual strands of the wire are brought tightly together.
  • Welding: Using heat and sometimes pressure, the compacted strands are fused or welded together. This creates a solid, stable end.
  • Shaping: The fused end is formed into a specific shape, often a solid slug or tip, suitable for the intended connection method.

Purpose and Benefits

The primary goal of wire fusing is to improve the connection quality and reliability when attaching stranded wires to terminals, connectors, or other electrical or mechanical components.

Key benefits include:

  • Improved Insertion: A solid, fused end is easier to insert into terminal blocks, crimp connectors, or solder cups compared to loose, frayed strands.
  • Enhanced Connection Reliability: By creating a solid mass, the potential for individual strands to break or loosen is reduced, leading to a more robust connection.
  • Prevents Fraying: The fusing prevents the wire end from unraveling over time or during handling.
  • Optimized for Automation: Fused wire ends are often preferred for automated assembly processes due to their consistent shape and rigidity.

Practical Applications

Wire fusing is commonly used in applications where reliable and consistent electrical or mechanical connections are critical. Examples include:

  • Automotive Wiring: Preparing wire harnesses for connection to components.
  • Appliance Manufacturing: Creating durable connections in consumer appliances.
  • Industrial Controls: Ensuring reliable wiring in machinery and control panels.
  • Aerospace and Defense: Where high reliability is paramount.

By transforming the flexible stranded wire end into a solid, prepared point, wire fusing simplifies subsequent connection steps and enhances the overall integrity of the finished assembly.