designed metal connections - sae international · designed metal connections dmc is committed to...
TRANSCRIPT
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DESIGNED METAL CONNECTIONS
DMC is committed to satisfying all your metallic tubing connection
needs!
Mike Bond
Steve Mack
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Swage Overview
• History• Definitions• Permaswage• PermaLite• Benefits
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• USA Aerospace Fitting Manufacturer since 1938
• Introduced Aerospace Swage Technology in 1971
• Most Aircraft in the Free World manufactured or repaired with DMC Swage Technology
DMC History
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What is it???
Swage Technology
Swaging is the controlled uniform reduction of the fitting end over the tube whereby forces are applied equally; 360 degrees around the fitting. The result of swaging creates a permanent connection between the fitting and tubing by plastically deforming them together as an assembly. The swaging process also controls the elastic rebound of the tube within the fitting bore to create a sound mechanical connection and permanent fluid containment seal.
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Permaswage® is one of the most commonly used products in the Aerospace Industry
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What is Permaswage® ?
• Permaswage® fittings are radial compressed (mechanically) onto compatible tubing to provide a permanent joint with metal to metal sealing. The joint is effected by differential springback between the tube and fitting.
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Permaswage®
• Metal to metal contact - Silicone back up seals
• 360 Deg. Swage – Min. Ovaltity to Max Extent Possible
• Float tolerance
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Fitting Compatibility• 21-6-9, 316 and 304 CRES Permaswage®
fittings - up to 3000 PSI• 6061 T6 Al Permaswage® fittings - up to
1500 PSI• 3Al 2.5 Ti Permaswage® fittings - up to
4000 and 5000 PSI.
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Permaswage® Installation
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Permaswage® Installation Tooling
Power Unit
Head Assy
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Tube Condition
ChiplessCutter
Tube Condition:
Tube seal area shall be in sound condition.
Tube ends shall be deburred.
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Permaswage® Installation
Select Marking Gage
Positioning Mark Applied
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Permaswage® Installation
Position Fitting & Tool,Actuate Pump
Assemble Tool
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Permaswage® Installation
Inspect fitting
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What is PermaLite® ?• PermaLite is a tube fitting that is mechanically
attached to the tube by axial swaging. The movement of the ring along the fitting body results in deformation of the tube with a leak-tight joint
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PermaLite® Fittings
Stainless Steel
AluminumTitanium
AS Fitting
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PermaLite® Fittings
• Titanium for 3AL-2.5V and 6AL-4V, Qualified on 3000 psi, 4000 psi & 5000 psi
• Aluminum for 6061T6 & 5052-O• Stainless Steel known as the PermaLite®
Repair Fitting • AS5000 Series
- Rating up to 5080 psi
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PermaLite® Benefits• Low ship set weight• Easy and Fast to Install, Push Pull feature• Easy to inspect• Easy to train - Short training• Virtually No ovality• Metal to Metal seal• Small / Light tools• Superior Flexure performance
– Low scatter on S/N curve
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PermaLite® Installation
• Mark both insertion mark & inspection mark.
• Place tool between the shoulder and the ring
• Actuate Pump• Inspect – Swage complete
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PermaLite® InstallLocation of Tube
Insertion Marks
Positioning
MarkInspection
Mark
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PermaLite® InstallationTube Position After Swaging
Average Insertion Maximum Insertion
Minimum Insertion Maximum Insertion W/Tube Stop
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PermaLite® Installation
• Inspection
Inspection Tool
Swaged Tee Fitting
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PermaLite® Installation
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Swage Benefits• Ease of installation, no special qualifications• No costly welding processes or x-ray requirements• No flammable or toxic substances• Repeatable, consistent process• Induces fitting float tolerances for controlled dimensions• Fitting geometry provides optimum flexure, tensile &
torsion performance • Simplified, light weight tooling, allows tight tube clusters• Fast Repair or Manufacture Entire Line
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Designed Metal Connections
We are committed to advancing Fitting Technology to meet the ever changing needs of Industry…
Thank You!