Forming Standard KAT Track |
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The following information is provided as a guide to customers
ordering Standard Section track pre-formed to the desired
contour by Gullco, or to be formed in their own shop. 1. “Track Datum” always refers to the track surface to which the rack is fixed. 2. When the rack is on the outside of the curve, the “Track Datum Radius” must be greater than 12". 3. When the rack is on the inside of the curve, the “Track Datum Radius” must be greater than 24". 4. Always specify whether rack is on the inside or outside of the curve. 5. Standard formed track lengths are 3 ft. and 7 ft. This is because the first 6" at either end of a track cannot be formed and is therefore removed after bending. 6. When calculating the “Track Datum Radius”, allowance must be made for the method of fixing the track to the work. The minimum allowable work to “Track Datum” distance (to permit free movement of the “KAT” carriage) is 1-1/2" and when using the standard magnet assemblies this distance is 2-7/8". “KAT” formed track may be held in position by the usual track mounting devices (i.e. magnets, steel brackets tack welded in position, or vacuum cups), or it may be permanently attached to framework alongside the workpiece. If your formed track is of a very permanent nature, it is often advisable to have a section formed and stiffened with welded aluminum side plates. This gives the stiffness of a deep section track in a formed shape. This method is often used in complete ring sections for cutting or welding large diameter pipes. |