FAQ

How important is sheet and plate steel flatness?-4

Combining Temper Pass and Leveling in One Line

08-10-27http://www.chineserollforming.com/FAQ/Combining-Temper-Pass/

How important is sheet and plate steel flatness? -3

What Is Leveling?Figure 3). As the fibers of the steel pass between two alternating, opposing rolls, they are bent in opposite directions in direct proportion to their distance from the neutral center..

08-10-27http://www.chineserollforming.com/FAQ/what-is-leveling/

How important is sheet and plate steel flatness? -2

What Is Temper Passing?Figure 2 Temper passing consists of compressing flat steel under very high pressure between two work rolls to flatten and elongate steel.Figure 2). A cold reducing process, temp..

08-10-24http://www.chineserollforming.com/FAQ/Plate-steel-flatness/

How important is sheet and plate steel flatness? -1

Fabricators are specifying temper-passed, leveled steel to remove coil memory

08-10-24http://www.chineserollforming.com/FAQ/sheet-and-plate-steel-flatness/

Understanding bending, moving material in roll forming-6

Lessons LearnedFigure 4).Figure 4 Analyzing three flower diagrams (A, B, and C) for a hat profile reveals that the C strategy is the optimal forming process. The sides rotate around the bottom axis a..

08-10-23http://www.chineserollforming.com/FAQ/Top-hat-profile/

Understanding bending, moving material in roll forming-7

In manufacturing a wide product, moving unformed edges laterally is a serious design issue

08-10-23http://www.chineserollforming.com/FAQ/Roll-forming-machine-in-USA/

Understanding bending, moving material in roll forming-5

Figure 3A), the process stretches the top and bottom edges; the increase in length is . When it is rotated about the bottom axis, the top edge elongates . For the same rotational angle,∆B 2∆C ∆/L,..

08-10-22http://www.chineserollforming.com/FAQ/Stacker/

Understanding bending, moving material in roll forming-4

Rotational ForcesFigure 3 Two rotational axes are through the center of a section (A) and at the end, or edge, of a section (B). Rotating the section through the center results in the least resistance..

08-10-22http://www.chineserollforming.com/FAQ/Uncoiler-in-roll-forming/

Understanding bending, moving material in roll forming-3

A primary consideration is the workpiece's form and how that form will resist force.

08-10-21http://www.chineserollforming.com/FAQ/Bending-material-in-roll-forming/

Understanding bending, moving material in roll forming-2

Figure 1Click image to view largerThe flower diagram for a formed box shows two distinct forming actions: rotation and horizontal movement.

08-10-21http://www.chineserollforming.com/FAQ/Moving-material-in-roll-forming/