Let Formetal tell you the difference between welded roll forming machine and Tube mill machine?
The tube & pipe mill machine is an automation system to produce pipes, square tubes, shaped tubes for furniture, steel structures, hand rails, piping, heat exchangers and so on by slit coils(skelp). It can be divided into ERW(Electric resistance welding) type, TIG welding type and PLASMA-TIG welding type. You can visit our website website link for viewing more product detail. https://www.formetaltech.com/Pipe-Welding-Machine/
Welding steel strips into products such as round tubes or pipes, box frames and structural members is a multi-billion dollar industry whose origins began more than a century ago. Many of the items we use today, such as furniture pipes, oil pipes, and fuel pipes, are manufactured on welded tube rolling mills.
Over the past 20 years, OEMs have been required to apply the principles learned from steel pipe plants to the larger roll forming market. This created another technical field known today as welding roll forming.
For various reasons, the company may change from a non-welded open shape to a welded roll-formed shape. Welded and rolled shapes have structural strength and integrity, help eliminate secondary operations in downstream manufacturing, and save steel and construction labor. Although there are benefits, there are costs, usually involving investments in capital equipment and skilled personnel who know how to use the technology.
What is the difference between tube rolling mill and welding roll forming system? Which one should you consider? Can I run the same parts on both systems? Will the quality of parts be affected?
These frequently asked questions in the industry are plagued by many conditional questions that cannot solve the final answer. Complex details are often needed to help machine manufacturers focus on the best choice.For round shapes, the tube mill may be the best choice. But what if you only want to make squares or rectangles? What if you want to punch holes in advance?
To determine the best machine, consider the advantages and disadvantages of each machine. The tube mill is specialized in producing simple shapes. In addition to circles, they can also produce squares, rectangles, and ellipses.
If you want to form some complicated shapes, the tube mill may not be the best choice. It is impossible to form certain shapes on the tube rolling mill, but the welding roll forming machine can easily form highly complex shapes.
The outer radius of these shapes should also be considered. In some cases, the tube mill can reduce the radius to twice the thickness of the material, but this is not typical. In general, the radius of the tube mill can be reduced to 2.5 to 3 times the thickness of the material.
The welding roll forming machine has different tool settings to achieve a tight and precise radius. In particular, this is related to how the forming roller engages the material at the corners. On the welded roll forming machine, both the female and male rolls are engaged with the corners, making the molding very precise. Generally, the radius can be reduced to less than twice the thickness of the material.
The consistency of the corner radius should also be considered, which is measured between the corners of the roll-formed product. The shapes formed on the tube mill may have differences between opposing and / or adjacent corners. This happens because one side is bent and only one roll (not including convex and concave shapes) is completely engaged with the material.
The joining of convex and concave rollers in a welding roll forming system has another benefit: it helps to produce consistent flat sides or features without convex or other shape changes. Since the tools on the tube mill cannot provide internal support for the workpiece, the flat sides or features tend to deform during processing and protrude from the tube mill.
