![]() Rotary draw benders form the tube by drawing it around the bend die, usually over a mandrel. A rotary draw style of bender that firmly clamps the material being bent is one of the best options to avoid wrinkles on the bend.It is important to choose the correct type of tooling for the material being bent. Whether the set includes a bend clamp, wiper die, pressure die or mandrel, each of these pieces of tooling affect the quality of the bend produced. Using a three-, four-, or five-piece tooling set helps control the tube. Tooling can also affect how good of a bend is produced.It is better for the bender to be oversized than undersized. If the bender is too small for the bending need, it will not hold the tube rigidly enough – in turn allowing wrinkles. Having the right size bender is the first thing to ensure that a smooth bend is produced.Choosing the correct size bender, the correct tooling set, and the correct style of bender are all important factors. Every detail matters when making a smooth bend. Have you ever tried to run a bend and every time it turns out creased and wrinkled? Bending a tube requires accuracy and precision. ![]()
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