Specifying Bend Angle in Round Pipes
A maintenance guy needs to replace a curved pipe elbow in his factory.
He calls up and says “I need a round pipe with a 120 degree bend”.
Sounds OK, except he is looking at a pipe like this… and this is NOT a 120 degree bend!
The “Degree of Bend” (D.O.B) . . . → Read More: Specifying Bend Angle in Round Pipes
Providing one or more straight tangents is a common requirement involving curved steel sections. Providing a tangent where two curved steel members meet is also sometimes required.
The question arises: how do you know when a tangent is truly tangent to a radius?
The leader lines line up
If adjacent dimension leader lines fall exactly over one another, then the adjacent arcs/lines are tangent.
If . . . → Read More: How Do You Know When a Tangent Is Truly Tangent to a Radius?
Round steel tanks are often constructed by rolling steel plate and attaching curved steel sections as stiffeners and as mating flanges. The tanks can have welded or bolted sections and also often have dished heads on one or both ends of round cylinders. Tanks can contain liquid or dry materials and can be painted or coated.
. . . → Read More: Bending Steel Sections for Round Tanks
Engineers are constantly striving to improve their designs and this is true for those who design antennas.
The requirement: 3 segments of 16 x 8 x 0.375 rectangular tube curved the hard way (i.e. x-x axis) to a 63ft 7.89in inside radius with 30ft of outside arc.
The application: curved tubes to support a dish for a prototype . . . → Read More: Bending Rectangular Tubing for a New Antenna Design
Metal profiles that are regularly curved include standard mill shapes (angles, bars, beams, tees, pipe, tube, and channels. Another type of metal profile that can be curved is exemplifed by the strut channel.
Strut channel rolled (from right to left) flanges in, flanges out, and flanges up (also called the "hard way).
Standard . . . → Read More: Curving Metal Profiles Including Strut Channels
What is the difference between a port cochere, a canopy, a portico, and a baldachino? Each one of these terms describes a structure that is usually subsidiary to the main building and that serves both an ornamental and practical function. The practical functions include protection from the weather; the ornamental functions include providing aesthetically pleasing architectural . . . → Read More: Functional Architectural Accents Using Curved (or Straight) Steel
20ft WT4 x 9 Split and Straightened to 1/16in Tolerance
One steel section that does not typically come as a profile from a steel mill is the tee section. Except for small sections, steel tees are produced by splitting beams. A rotary shear or a torch cuts the web of the beam to produce . . . → Read More: Straightening or Curving Steel Tees Made from Split Beams
A miscellaneous and ornamental iron shop needed 160 pieces of pipe to be bent for the top and bottom transitions of a staircase. Bending this pipe eliminated 160 welds. And each weld would have required miter cuts, grinding, and attention to avoid sharp corners and irregularities.
Using rotary draw bending with mandrels, Chicago Metal rolled . . . → Read More: Rotary Draw Bending of Pipe for Stairs Saves $$