Aluminum Alloy Wire for Construction Equipment

Specification

Applications and Solutions

• Crane and Boom Fabrication: Welding large aluminum box sections and trusses for mobile and tower cranes (often 6061 or 7005 base metals).

• Access Platforms: Joining the structural components of personnel lifts, scissor lifts, and scaffolding systems.

• Heavy Equipment Repair: Field repair of cracked frames, broken brackets, and structural fatigue failures on construction vehicles.

• Truck and Trailer Bodies: Fabrication of aluminum components for dump trucks, cement mixers, and specialized transport vehicles.

FAQ

• Q: Why is ER5356 preferred over ER4043 for crane booms?A: Crane booms are subjected to extreme, repeated cyclic loading. ER5356 has significantly higher fatigue strength than ER4043 and is therefore mandatory for safety-critical, high-stress construction components.

• Q: What is the biggest challenge in field welding construction equipment?A: Base metal cleanliness and contamination. The wire must be clean, and the technician must ensure the base metal is thoroughly cleaned (free of dirt, oil, and thick oxide) despite challenging conditions to prevent porosity.

• Q: Can this wire be used for repairs on 7XXX aluminum alloys?A: ER5356 can be used to join some 7XXX alloys (7005) and is the most common repair filler for 7XXX alloys due to its high crack resistance, although it will not restore the base metal's original strength.