Aluminum alloy welding wire
AssigneeIllinois Tool Works Inc.
InventorsBruce Edward Anderson, Patrick Berube
Life of this patent
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Abstract
The present disclosure relates generally to the field of welding filler metals, and more particularly to compositions suitable for welding or brazing aluminum alloys. In an embodiment, an aluminum-silicon-magnesium alloy, includes a magnesium content between approximately 0.1 wt % and approximately 0.5 wt %, wherein substantially all of the magnesium content is present as magnesium silicide. The alloy includes a silicon content between approximately 5.0 wt % and approximately 6.0 wt %, wherein at least 4.75 wt % of the silicon content is present as free silicon. The alloy includes one or more of iron, copper, manganese, zinc, and titanium. The alloy further includes a remainder of aluminum and trace components.
Claims20
An Al—Si—Mg welding filler metal consisting of:
- 5.0 to 6.0 wt % silicon;
- 0.1 to 0.5 wt % magnesium;
- and
- the balance being aluminum and trace elements,
- wherein the trace elements consist of:
- a maximum allowable amount of iron of 0.8 wt %;
- a maximum allowable amount of copper of 0.3 wt %;
- a maximum allowable amount of manganese of 0.05 wt %;
- a maximum allowable amount of zinc of 0.2 wt %;
- a maximum allowable amount of titanium of 0.2 wt %;
- a maximum allowable amount of beryllium of 0.0003 wt %;
- and
- other trace elements are allowable in a maximum weight percent of 0.05% each, the other trace elements together being allowable in a maximum weight percent of 0.15% total;
- and
- wherein the Al—Si—Mg welding filler metal is a welding filler metal rod or wire for alloying with a base metal of a workpiece to produce a weld.
An Al—Si—Mg welding filler metal consisting of:
- 5.0 to 6.0 wt % silicon;
- 0.1 to 0.5 wt % magnesium;
- 0.1 to 0.2 wt % titanium;
- 0.05 to 0.2 wt % zinc;
- and
- the balance being aluminum and trace elements,
- wherein the trace elements consist of:
- a maximum allowable amount of iron of 0.8 wt %;
- a maximum allowable amount of copper of 0.3 wt %;
- a maximum allowable amount of manganese of 0.05 wt %;
- a maximum allowable amount of beryllium of 0.0003 wt %;
- and
- other trace elements are allowable in a maximum weight percent of 0.05% each, the other trace elements together being allowable in a maximum weight percent of 0.15% total;
- and
- wherein the Al—Si—Mg welding filler metal is a welding filler metal rod or wire for alloying with a base metal of a workpiece to produce a weld.
An Al—Si—Mg welding filler metal consisting of:
- 5.0 to 6.0 wt % silicon;
- 0.1 to 0.5 wt % magnesium;
- 0.1 to 0.2 wt % titanium;
- and
- the balance being aluminum and trace elements,
- wherein the trace elements consist of:
- a maximum allowable amount of iron of 0.8 wt %;
- a maximum allowable amount of copper of 0.3 wt %;
- a maximum allowable amount of manganese of 0.05 wt %;
- a maximum allowable amount of zinc of 0.2 wt %;
- a maximum allowable amount of beryllium of 0.0003 wt %;
- and
- other trace elements are allowable in a maximum weight percent of 0.05% each, the other trace elements together being allowable in a maximum weight percent of 0.15% total;
- and
- wherein the Al—Si—Mg welding filler metal is a welding filler metal rod or wire for alloying with a base metal of a workpiece to produce a weld.
Dependencies are inferred from the claim text.