There are a few sample tables provided that you could tweak. I been having the same fun as you. We started with a Bend Deduction table that was a big mistake. Are currently working on changing all our Inventor tables and sample bent parts into a SolidWorks k-factor table.
Good Luck you will need it.
C:\Program Files\SolidWorks Corp\SolidWorks\lang\english\Sheet Metal Gauge Tables
Samples are located here
The sample is BLANK with no data...........how useful is that?
Hi Mike,
I have found to be the best solution for me though others may disagree.
Here are a copy of the K factors I use for our internal parts.
These K factors work fine for the when I can state which tooling to use for each part as we spent some time running test pieces to make sure everything was fine.
The best idea is to run some test part to check the sizes on your tooling.
Michael
Your Frustration has just begun once you get past the K factor Table then you have to create customs K factor for all bends past 90. SolidWorks uses virtual sharps for angles past 90 and not the tangent. Note that the Tangent is the only point you can verify with a tape measure unless some one can tell how to measure a virtual sharp in the field.
We use the virtual sharp in my shop all the time. Because the virtual sharp does not change even if the actual radius is not the same as the modeled one.
All of the press-brake operators have a tool like the one shown in the picture (below).
You set the opening angle and then lineup the intersection of the adjustable angle to the point on the ruler. The picture shows a virtual sharp measuring 2" and an opening angle of 115 degrees. 
Mike,
I have found that using K-Factors is the best way to go for me. After working with a few sheet metal shops I have found that using K-Factors listed below.
Material: Aluminum: KF of .485; Stainless: KF of .390 and Steel: KF of .480
Depending on the shop you use these factors are pretty close to what we want as far as finished dimension and tolerances.
I hope this helps!
I scratched my head, asked my VAR for help and then don't use any table at all. We have an Excel sheet with bends that the shop has said using this type & thickness of mat'l this is the radius we use and work back from there to get a K-factor for our flat patterns. If the customers drawing calls for 16
Ga CRS and a .09 inside rad, they get a .065 inside rad because that is what we do. If it's 16 Ga St Stl it gets a .085 rad.
Rob
Mike, I too spent countless hours, approximatly 50-60 hrs total, throughout a 3 months time, trying to come up with a usable table which incorportaes K-factor, material type and material thickness so that I could manupulate only one file for ALL of my bending situations. The help files are in fact limited in their explanations. I chosse a "Gauge Table" that has all of the material types, all of the bend radius and all of the K-factors. One IMPORTANT factor that would have helped me in creating this file and should have been mentioned in the Solidworks Gauge table help files is this; the table must be written with material thickness increasing, even if it is only 0.001". You will notice that when picking the material type and thickness in the sheetmetal properties inside Solidworks, that the materials are mixed in the pull-down, this is the only way that I could get the file to work, I had to incorporate the material type and material thickness into the "Gauge No" discription. I am sure once you modify this file, incorporte it into your sheet metal template, you too will find that it will be a file that you will always have a back-up copy of somewhere. Enjoy!
Thanks Chad,
I will give this a shot.
Michael
Thank you, you are amazing!
The K-Factor bend tables worked, barely. This works perfectly!
Chad, can you repost this file? My excel is saying it is corrupt. Thanks!
Chad ... it is kind of late reply and question, but I just found this thread and tried to use your K-Factor table
The problem is whenever I choose a material gauge from the drop down menu it doesn't trigger any value in the bend allowance (K-Factor) and if I press the green check mark I get two error messages:
any advise or work around this problem ... thanks!
*screen captures attached for reference
Hello Everyone,
I have written 4 or 5 articles in the last few months about bend and gauge tables in the SOLIDWORK monthly blog. Take a look at them.
Spotlight on Features: Sheet Metal and Gauge table rules (Part I) - SOLIDWORKS Tech Blog
Mario
Mike, I too spent countless hours, approximatly 50-60 hrs total, throughout a 3 months time, trying to come up with a usable table which incorportaes K-factor, material type and material thickness so that I could manupulate only one file for ALL of my bending situations. The help files are in fact limited in their explanations. I chosse a "Gauge Table" that has all of the material types, all of the bend radius and all of the K-factors. One IMPORTANT factor that would have helped me in creating this file and should have been mentioned in the Solidworks Gauge table help files is this; the table must be written with material thickness increasing, even if it is only 0.001". You will notice that when picking the material type and thickness in the sheetmetal properties inside Solidworks, that the materials are mixed in the pull-down, this is the only way that I could get the file to work, I had to incorporate the material type and material thickness into the "Gauge No" discription. I am sure once you modify this file, incorporte it into your sheet metal template, you too will find that it will be a file that you will always have a back-up copy of somewhere. Enjoy!