Internal Swaging

Internal swaging is a mechanical method for the attanchment of ferrules, couplings and fittings to tubing. This is accomplished by pushing the tubing into the ferrule groves within the fitting. Where performance in high pressure, high temperature applications are required, Dieform provides engineered mechanically attached fittings for critical aerospace applications.

Flared fittings with machined metal sealing surface

The flared tube fitting relies on metal-to-metal contact between the finished surface of the fitting nose and the inside diameter of the flared tubing to make a seal. DIEFORM takes great care in the manufacturing process to produce a flared nose surface that far exceeds published specifications. This high finish reduces the likelihood of leakage due to irregularities in the flared tubing.

As the fitting nose and flared tubing are drawn together, they are supported by the fitting sleeve, which distributes the compressing load caused by the nut as it is threaded onto the fitting body during assembly. An installed flared tube fitting system is easy to identify. The sleeve protrudes out the back of the nut. This extension provides the tubing with additional support and lessens the longitudinal load on the fitting nose.

Applications for SAE 37 degree Flared Tube Fittings:

The SAE flared tube fitting is the most popular configuration of hydraulic fluid connector in North America. While the SAE system is often used for joining tubing in a hydraulic system as an end adapter for female SAE swivels, which is the most common and affordable end connection on hydraulic assemblies.


Conveyor Rollers, Sprinkler Tubes, Boiler Tubes, Mufflers, Lamp Bases.


Surgical Lighting, Hypodermic Needles, Surgical Instruments

Commercial Products:

Table and Chair Legs
Softball Bats
Tent Poles
Adjustable Push Rods for Harley Davidson aftermarket
Flag Poles
Pole Extensions - reduced to fit inside each other
Police Batons
Ski Poles
Bicycle Tubular Parts any alloy
Furniture Components
Fitness Equipment


Dieform LLC
4035 Schaefer Ave
Chino, CA. 91710
Freephone:+1 800 SWAGING
Telephone:(310) 323-6695


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