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  • Chapter 9: Fluid Lines & Fittings › Titanium 3AL–2.5V › Fabrication of Metal Tube Lines

    Fabrication of Metal Tube Lines Damaged tubing and fluid lines should be repaired with new parts whenever possible. Unfortunately, sometimes replacement is impractical and repair is necessary. Scratches, abrasions, or minor corrosion on the outside of fluid lines ... under “Rigid Tubing Inspection and Repair.” If a fluid line assembly is to be replaced, the fittings can often be salvaged; then the repair involves only tube forming and replacement. Tube forming consists of four processes: cutting, bending, flaring…

  • Chapter 9: Fluid Lines & Fittings › Rigid Tubing Inspection & Repair

    gives the maximum allowable angular and dimensional offset. When replacing rigid tubing, ensure that the layout of the new line is the same as that of the line being replaced. Remove the damaged or worn assembly, taking care ... bending the pattern by hand as required for the new assembly. Then bend the tubing to match the wire pattern. Never select a path that does not require bends in the tubing. A tube cannot be cut or flared accurately…

  • Chapter 4: Aircraft Metal Structural Repair › Making Straight Line Bends › Bending a U-Channel

    needed to make the channel is less than the dimensions of the outside of the channel (total of mold line dimensions is 4 inches). This is because the metal follows the radius of the bend rather than going from mold ... line to mold line. It is good practice to check that the calculated TDW is smaller than the total mold line dimensions. If the calculated TDW is larger than the mold line dimensions, the math was incorrect. Figure…