If a cutting tool is not available, use a fine-tooth
hacksaw, preferably one with 32 teeth per inch.
Since it is
difficult to get a good, square, flush cut on the tube with this
method, the tube end must be filed after the cut is made.
hacksaw cutting and filing, the tube must be clamped in tube blocks
or other suitable holders to prevent scratching or bending and to aid
in producing a 900 cut on the tube end.
METHODS OF TUBE BENDING
Tube bending can be done with any one of a variety of hand or power
bending tools. Regardless of method used, the object is to obtain a
smooth, even bend without flattening or buckling. Examples of these
results are shown in Figure 2-5.
Acceptable and Unacceptable Tube Bends.
Hand Bending Methods. Tubes less than 1/4-inch in diameter can be
bent with hands, but take care to work the bend gradually. For sizes
larger than 1/4-inch in diameter, use a bending tool; however, this
tool is only effective on thin-walled tubing of soft material.
common bending tools are--