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Tube end forms are required for many tubing applications. They are used to create some type of connection to another media (tube, hose or block). In most cases, they can be formed on any style of tube.
Cold-end forming is a process that has been around for many years, but many changes have been made by the automotive industry. The search for cleaner, lighter and better ways of moving fluids through the systems found in automobile has fueled research for stronger end forms. Tolerances have been tightened to minimize the potential for leaks. Elimination of brazing has also spurred some better designs. All of this history and innovation has positioned the tube end form as a critical part of fluid handling systems found in many products.
Types of Tube End Forming:
Expanding: These types of machines can expand the tube by using segmented fingers and tapered mandrel inside the tube.
Reducers: These types of machines can reduce tubing by the use of standard segmented tooling. The tube is reduced by the use of the segmented jaws and a fixed cone on the outside of the tube.
ID/OD Single Head Sizing: These types of machines are designed to provide improved accuracy and control of both inside and outside diameters of a tube. This uses tooling which incorporates inside expanding fingers and outside reducing jaws in a barrel assembly. The fingers and jaws can be sequenced in any sequences to produce the desired result.
Ram Forming: These machines employ a sequenced vise and ram type action to perform plug expanding and ring reducing, as well as, expanding and reducing with segmented tooling. Vice and ram forming incorporates a vise for gripping the tube while the ram forces a plug into, or ring over, the tube to obtain the finished size. These machines may be adapted to use segmented type fingers for expanding or jaws for reducing. These machines may also utilize ram forming tools (vise, jaws and ram tool) for expanding, reducing, beading, flaring, etc. These machines may also be available in dual head models.
Rotary Spinning: These types of machines employ a sequenced vice and rotary spin flare to perform spherical flares with a set of forming rollers. This machine forms open end flares by utilizing the rotating flare head, which is driven through the center of the hydraulic ram. This type of flaring reduces tube splitting, with more control than the “bulldozing” or “ram flare” methods. This type of machine may be adapted to use segmented type fingers or jaws for expanding or reducing. It may also utilize ram forming tools (vice, jaws and ram tool) for expanding, reducing, beading, flaring, etc. These machines may also be available in a dual head model.
Liberty Machinery Company buys and sells used Tube End Forming Machines. These Tube End Forming machines are classified as T6653, T8353, T6554, T7150, and T7401.
