Plane the Rough Cut Segment
Once cut out, inspect the rough cut segment.
Make sure there are no distinct ridges or parts of the pipe that
will get snagged in the planer. The planer will make deep
gouges into the coupon if such ridges exist.
Ridges on the coupon could be caught in the
planer forcing the coupon toward the user
causing minor injury. Ensure the coupon has no
ridges before planing.
Use the planer to create smooth and parallel surfaces of the
specified thickness.
Begin slowly, using small increments of adjustment to the planer
each time the coupon passes through the planer. Start the planer
depth slightly larger than the maximum thickness of the coupon.
Insert the coupon into the planer.
Repeat inserting the coupon into the planer, making small
adjustments to the depth each time it is inserted. Periodically flip
the coupon to the opposite side to ensure that both sides achieve
the same flatness.
The planer will pull the coupon through, there is no need to force
the coupon.
Plane the coupon to the specified thickness within the tolerance of
your bend test specifications. Tighter tolerances will improve the
precision of your results. Measure at the bead.
The unit ships with a 1 inch diameter ram. Bend test specifications may require you to use a specific radius/thickness
ratio*. The table below gives the coupon thickness based on the radius/thickness ratio with a 1 inch diameter ram.
Coupon thickness should not exceed 0.5" (12.70mm). A 2 inch ram is available as an optional accessory.
* The appropriate ratio is under development by the industry. If there is no other guidance or specification we
recommend a radius/thickness ratio of 1.
TX04368-3-29-12
3 - 2
Operation
PH
04
561-10
-10
-11
PH
04
56
2-10
-10
-11
1 inch Diameter Ram
Desired radius/
thickness ratio
Ram Diameter
Coupon Thickness
1
1" (25.4mm)
0.5" (12.70mm)
1.6
1" (25.4mm)
0.31" (7.87mm)
2
1" (25.4mm)
0.25" (6.35mm)
2.5
1" (25.4mm)
0.20" (5.08mm)
2 inch Diameter Ram (Optional)
Desired radius/
thickness ratio
Ram Diameter
Coupon Thickness
2
2" (50.8mm)
0.5" (12.70mm)
2.5
2" (50.8mm)
0.4" (10.16mm)
