Aluminium Fabrication Guide: Techniques, Equipment & Wire Feeding

Aluminium's popularity stems from its strength, lightness, corrosion resistance, and conductivity. But fabrication requires distinct methodologies from steel—especially in wire feeding and heat management.

Three Critical Setup Areas

1. Wire Feeding System

• Nylon or Teflon liners (steel liners shave soft aluminium wire)
• Wire guides to minimize friction and shavings
• U-groove drive rolls (eliminate sharp edges that shave wire)
• Moderate roll pressure—excessive pressure crushes wire

2. Contact Tips & Tension

• Larger tip bore—aluminium expands more than steel
• Loose brake tension on wire spool
• Keep gun cable straight to prevent feeding issues

3. Power Source & Technique

Adapt steel welding setups with aluminium-specific parameters. The metal's rapid heat dissipation requires higher travel speeds and precise amperage control to avoid burn-through while achieving penetration.

Why Professionals Succeed

Experienced fabricators understand these nuances instinctively. They select the right liners, rolls, tips, and settings for each alloy and thickness—turning aluminium's challenges into clean, strong welds.

DIY fabrication risks costly rework. For structural or cosmetic work, hire a pro who lives these details daily.