![]() ![]() Therefore, adjusting the carriage to a greater CLR can sometimes eliminate wrinkles. This is due, in part, to the softness of some grades of copper. If the alignment of the carriage is too far away from the pressure die during bending (non-mandrel bending), then wrinkles may occur. This is because the aluminum can withstand greater compressive forces on the inside of a bend before the inside wall itself starts to wrinkle.Īlso, the position of the carriage on a CNC bender can influence wrinkles when bending copper. 035” wall can often be bent to a tighter radius then soft copper. When bending copper, the compressive forces on the inside of the bend can tend to give way sooner as the centerline radius becomes smaller.Īs an example, a ؽ” aluminum tube with a. The yield strength of the material being bent can directly influence whether there are wrinkles or no wrinkles. There are other factors that can influence the quality of a bend. However, for consistent production results, keeping the D of bend greater than 2 can disperse of several long-term headaches. It is possible to bend the ½” diameter copper tube above to a smaller radius. ![]()
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