Tools and products for bending and end forming tube and pipe

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Tube bending guide

Setting the mandrel

In order to achieve successful bending we need correctly setup tools, the basic steps for correct set up of the mandrel is as follows:

1. Set up the mandrel according to the table (table of recommended settings is supplied with the mandrel)
2. Check the bearings, so that they are all touching the main grooves of the clamp die.
3. The bearings and mandrel must be greased.
4. Remove the mandrel at the end of the bend.

These settings are basic and it is necessary to introduce some gentle adjustments after optically monitoring the tube bend. Fine tuning means making small changes to the basic settings and to the monitoring of the bend. Never set the bearings on the axis of the clamp die, it can cause the connecting parts to break. After wear on the tip of the mandrel, turn the mandrel.

If the mandrel is set too far into the tube, then it can cause cracking (normally in the area of the smallest profile), if it is set too far back it can cause great stress on the first connected part and can cause damage to it.