Assembly Challenge: Mating a Spherical Face with a.Autodesk Inventor Tips from Around the Web.Problems Saving Files: Files Can Not Be Saved and.Understanding Bend Allowance and Bend Dedcution in.iLogic: Use a Part iProperty to Get a File Path.Networked Seat of Inventor Won't Start / Doesn't R.Using iLogic to Find Dimension Overrides.So if you had a simple model with two legs that were both 25 mm long and if you were to flatten this model you'd find that the total flat pattern length is 44.786 mm: To calculate bend allowance you use a formula that includes a Kfactor. Bend allowance calculations take into account the sheet metal. These calculations are important to create an accurate flattened model for manufacture. Bend allowance calculations are used to determine the developed length of flat sheet metal required to make a bend with a specific radius and angle. Kfactors are used as a good approximation of the theoretical percentage of the material thickness at a bend, where it is neither stretched or contracted. About Bend Allowance and Developed Length. Your Inventor sheet metal parts will use a Bend Allowance when you have your unfold method set to use a Kfactor. Bend Allowance and Bend Deduction are not interchangeable terms, so understanding when your parts are using one or the other, or if the parts are using both will help.
