Steel bending is often subcontracted to companies that specialize in providing curved steel sections sometimes called “rolling houses.” The question arises, which party should supply the steel—the customer or the rolling house? There are several factors to consider.
Where can the steel most easily be procured? Even if the rolling house adds a markup to the cost . . . → Read More: When Steel Bending Is Subcontracted, Who Should Supply the Raw Material?
When determining whether a given steel section can be curved without heat, it is useful to determine its section modulus and relate that value to the strength of the steel bending equipment.
Section modulus measures the flexural strength of a given section of steel. More specifically, section modulus is the moment of inertia of the area of . . . → Read More: How Calculations Regarding Section Modulus Determine Steel Bending
Structural steel bending, whether it involves angle bending, bar bending, beam bending, channel bending, tube bending or pipe bending, contributes to sustainability simply because it uses the most recycled material: steel. 93% of the steel used in construction is recycled; 98% of the steel recovered from the demolition of steel structures is recycled. Some buildings today . . . → Read More: Structural Steel Bending Contributes to Sustainability
Aluminum tube bending has helped the military put out the oil refinery fires during the Iraq war. 45 degree elbows formed by mandrel tube bending connect straight tube sections across the desert to transport water.
Each aluminum section, either straight or bent, has grooves machined into the ends of the tube. In the case of the bent . . . → Read More: Aluminum Tube Bending for the Military
The bending of beams can contribute to sustainability as is evident in the mile-long walkway at Dos Lagos.
The walkway is made of 213 pieces of curved beams weighing a total of 45 tons of steel formed by multi-radius bending: W6 x 24, W8 x 13, W8 x 35, W6x16, and W8 x 31. Some of the . . . → Read More: Bending of Beams: Curved and Green
Steel plate rolling can be done either on plate rolls—machines that incorporate three or four rollers to form curved shapes—or “bumped” with a radius die on a press brake. Both methods have their strengths and weaknesses. Everything else being equal (same plate thickness, same plate radius, same grade of steel), press brakes can usually “nose” the . . . → Read More: Steel Plate Rolling: on a Plate Roll or a Press Brake?
Steel bending is a discipline, and a wise teacher once said that any given discipline has three aspects to it: the subject matter itself, an aesthetic, and a spirit.
For example, mathematics is a discipline about numbers, computation, formulas, etc. But some mathematical solutions are said to be more “elegant” than others, the beauty of which might . . . → Read More: The Knowledge Of, the Beauty of, and the Spirit of Steel Bending
Questions about surface finish often arise when there is a requirement for bending stainless tubes for circular stair handrails. Will the helical tube bending process damage the finish? And what if the project requires bending polished stainless tubing? What if the tubing was polished before it was rolled helically? What will it look like?
A recent requirement . . . → Read More: Bending Stainless Steel Tubes for Circular Stair Handrails