Autodesk Inventor Sheet Metal K Factor

Using the bend table unfolding method sheet metal parts unfold using empirical values that are measured or derived and applied to specific bend angles within the table. Notice that the right hand portion of the dialog box updates to provide an. K factor a constant determined by dividing the thickness of the sheet by the location of the neutral axis which is the part of sheet metal that does not change length.

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Each column specifies a bend radius.

Autodesk inventor sheet metal k factor.

By default inventor uses a k factor for calculating bend allowances. Access the material editor to make edits to a material not available in. Each row in a bend table specifies a bend angle. Get answers fast from autodesk support staff and product experts in the forums.

Values for angles not defined within the table are calculated using a backup kfactor. This video explains the process of importing an excel file saved as txt into autodesk inventor for bend allowance bend deduction calculation. Select bend table as the unfold method. So if the thickness of the sheet was a distance of t 1 mm and the location of the neutral axis was a distance of t 0 5 mm measured from the inside bend then you would have a k factor of t t 0 5 1 0 5.

Michael davis owner of ycg inc. I don t even know if you could enter a 0 0 for a k factor in inventor possibly something like 0 0000000000001 or it could be 1 0. Sheet metal k factor. A bend table is a table of bend deductions arranged in rows and columns.

Use the sheet metal defaults dialog box to change the options and parameters defined by the selected sheet metal rule for the active sheet metal part or to assign a unique thickness to a body in a multibody part. Inventor forum sheet metal k factor. Access the style and standard editor to make edits to an unfolding rule or to set a new active standard rule. Post a question get an answer.

The default k factor is 0 44 which simply means that inventor is assuming that 44 through the cross section of the part the material is not stretched or squashed when bending and therefore this slice of the folded part will give the true length of the flat pattern. Using a bend table. When unfolding if a bend radius or angle does not correspond to a specific entry a process interpolates between adjacent values in the table. Except where otherwise noted work provided on autodesk knowledge network is licensed under a creative commons attribution noncommercial sharealike 3 0 unported license.

You can generate flat patterns by unfolding sheet metal features using a uniformly applied. Owner of ycg inc. Share and vote on ideas for future.