I am new to using sheet metal and cannot work out why this party cannot be folded. I am using SolidWorks 2016.
Thanks in advance.
Because you are cutting into the bend area. See attachment
Tony,, There is a couple of issues with your method. First you should make all your cuts with the "Normal Cut" option whenever possible. When you made your Edge-Flange3 you made two bends at once which is perfectly fine but as a result the intersecting corner edges are not perfectly straight. As a result your Cut-Extrude7 doesn't quite cut the parts since you sketch for this are straight. I suppressed this cut and altered the sketch on Cut-Extrude6 in order to take out the entire corner. You really should fully define your sketch also.
Good Morning Tony!
Actually with all my experience with bending and dealing with drawings I am not a fan of starting a part like this. My reasons are that the bend radius is not accurate 100% of the time so this may vary the desired outcome. I have attached part file quickly sketched in inches with minimal features. Maybe you might get some ideas from this and avoid extra work and potential errors.
You could have saved yourself alot of trouble by just editing the edge flange profiles. Perhaps that is what Bernie did. No unfold and fold. No cut features. f
Good morning Dennis!
I used the Corner Break option though changing the flange length may cause that to explode if the flange is shorter, a simple edit is easy then as SW will tell you the maximum size allowed for your radius and material. I avoid at all costs editing flange profiles and that is my personal preference. I have received a bunch of those over the years and find them somewhat dangerous to edit after the fact. I would rather see a feature and understand the design intent.
However you can 'cheat' that by using a very small bend radius and defining the actual bend deduction.
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