![]() ![]() A formed-tip mandrel generally is used with heavier-wall tubing and an average radius. The formed end gives more support to the inside of the tube. Formed mandrels: Formed mandrels: A formed-tip mandrel is a variation of a plug mandrel, but it has a radius cut into the tip to match the radius of the bend.It is used quite often in international pipe size (IPS) applications without a wiper. Plug mandrel: Plug mandrel: These mandrels are like rigid rods and are used mainly for heavy-wall tubes and larger radii, but they are not used to create critical high-angle bends.The picture right shows the components needed to produce a mandrel bend (except the metal tube or pipe itself.) After clamping the tube or pipe with the clamp die, the bend dies body rotates up to 180 degrees supported internally by the mandrel and externally by a pressure die and a wiper die. Mandrel bending is a method of rotary draw bending, a solid mandrel(up to five segmented, donut-shaped, balls that are just slightly smaller than the ID of the pipe/tube that is being bent) shaft is inserted into the pipe/tube to provide internal support during bending, its held in a fixed position and holds it firmly in the groove of the bend die. ![]()
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