About Glenalmond Technologies

Engineering, quality, history and pride in delivering

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Wire Arc Additive Manufacturing Process (WAAM)

Glenalmond Technologies, GATech, worked with Cranfield University to develop further the capabilities of Wire Arc Additive Manufacturing (WAAM) to make 3D printing in high-grade metals more efficient in large volumes. WAAM is focussed on large build, lower resolution meaning that it is ideally suited to large components previously forged.

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WAAM Key Takeaways

  • Build rates 0.5 - 4kg/hour
  • Typical 1kg/hr Titanium (Ti)
  • Typical 4kg/hr Inconel
  • Unlimited build volume
  • Buy to fly ratio - typical 1.5 but always < 2
  • 100% dense parts as deposited with no defects
  • Resolution 2mm

Benifits of WAAM over Powder

 

Powder vs. Wire

  Powder Wire
Cost High Medium
Quality Variable High (Ti, Fe, Ni), variable Al
Feeding Complicated unless using side feed Easy well established industrial process
Material efficiency Typical 40 - 60% 100%
Safety Issues Yes – especially Ti/Al No
Recycling Possible with processing Not required
Out of position deposition No Yes
Rotation problem Coaxial – no, side feed yes CMT – no, plasma - yes

 

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Benifits of WAAM over Powder

 

Laser vs. Arc

    Laser Arc
Cost Capital Very High (£200k - 4 kW) Low (£25k – 4kW plasma or CMT)
Running Medium Low
Efficiency Power Source 25% 90%
Coupling 40% 85%
Total 10% 80%
Safety Issues   Very high medium
Build Rate   Medium - high High - very high
Feature Size   0.2mm upwards 1mm upwards

 

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WAAM Cost saving exercise

 

Aluminium Wing Rib

Design option (MMR = 65 kg/hr) Buy to Fly (BTF) Cost (£k) Cost reduction
Machined from solid 45 4.9  
WAAM 12.3 2 58%

 

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TALK WITH US TODAY ABOUT HOW OUR SERVICES CAN INNOVATE YOUR BUSINESS

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