Inventor General Discussion

Inventor General Discussion

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prajwal
Posts: 27
Registered: ‎12-20-2013
Message 1 of 8 (898 Views)
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Creating a Flange in Inventor 2013 Sheet Metal Help.

898 Views, 7 Replies
12-20-2013 07:02 AM

Hello everyone, 

 

This is my first post in the autodesk forum. I am having some trouble creating a flange from the bottom cut section of the sheet metal in the attached file. The flange should be flushed with the bottom surface but should be vertical. Everytime I try to do it, it gives me an error message "Not a valid sheet metal edge: adjacent face thickness may be different from sheet metal settings". The whole body is made out of 0.25" plate and the width of the cut section is also 0.25" when I inspect it. Can anyone please let me know what is the problem? I really aappreciate any help. 

Sketch1 is missing a coincident constraint between the midpoint of the 30in line and the origin.

Missing a vertical and horizontal constraint on the "left" side.

Missing a dimension on the left side (or equal constraints).

 

Sketch6 missing constraints and extra dimensions.

 

Extrusion1 will not result in correct sheet metal geometry.

Extrusion3 will not result in correct sheet metal geometry.

(Do not use Extrusions in Sheetmetal if not experienced.)  (if you examine the Flat Pattern in Wireframe - you should see the problems)

 

Several sketches that I don't understand the purpose of.

 

Back in a few minutes with improved design.

Is something like this what you are after (see attached).

*Expert Elite*
JDMather
Posts: 28,246
Registered: ‎04-20-2006
Message 2 of 8 (876 Views)

Re: Creating a Flange in Inventor 2013 Sheet Metal Help.

12-20-2013 07:32 AM in reply to: prajwal

Sketch1 is missing a coincident constraint between the midpoint of the 30in line and the origin.

Missing a vertical and horizontal constraint on the "left" side.

Missing a dimension on the left side (or equal constraints).

 

Sketch6 missing constraints and extra dimensions.

 

Extrusion1 will not result in correct sheet metal geometry.

Extrusion3 will not result in correct sheet metal geometry.

(Do not use Extrusions in Sheetmetal if not experienced.)  (if you examine the Flat Pattern in Wireframe - you should see the problems)

 

Several sketches that I don't understand the purpose of.

 

Back in a few minutes with improved design.

Please mark this response as "Accept as Solution" if it answers your question.
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ccarreiras
Posts: 974
Registered: ‎02-04-2010
Message 3 of 8 (870 Views)

Re: Creating a Flange in Inventor 2013 Sheet Metal Help.

12-20-2013 07:34 AM in reply to: prajwal

Hi!

 

Pay atteention to the flat pattern... In real life you will not have the "chanfer" in theinicial sheet.

This is due the cut (extrude). The thickness faces, must be always perpendicular to the top face.

 

1.png

You have to cut it in a different way.

 

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Regards.
CarlosC

Autodesk Inventor 2014 Certified Professional
Autodesk Factory Design Suite Ultimate 2015
Windows 7 64Bit
Active Contributor
prajwal
Posts: 27
Registered: ‎12-20-2013
Message 4 of 8 (861 Views)

Re: Creating a Flange in Inventor 2013 Sheet Metal Help.

12-20-2013 07:44 AM in reply to: JDMather

Thank you JDMather. What I am really trying to do is to create a flange from the edge of extrusion 3 to the XZ Plane and parallel to the XY plane. I imported the sketches from AutoCad so had to take off the dimentions. The top section is supposed to look like that, of course without the problem that carloscarreiras8703 has pointed out. I will have to figure out that too.

Distinguished Mentor
ccarreiras
Posts: 974
Registered: ‎02-04-2010
Message 5 of 8 (860 Views)

Re: Creating a Flange in Inventor 2013 Sheet Metal Help.

12-20-2013 07:45 AM in reply to: ccarreiras

Hi!

 

Like i said, you must have 90º.

 

Check the part attached.

 

2.png

 

Did you find this reply helpful ? If so, use the  Mark Solutions!  Accept as Solution or Give Kudos!Kudos - Thank you!

Regards.
CarlosC

Autodesk Inventor 2014 Certified Professional
Autodesk Factory Design Suite Ultimate 2015
Windows 7 64Bit
*Expert Elite*
JDMather
Posts: 28,246
Registered: ‎04-20-2006
Message 6 of 8 (849 Views)

Re: Creating a Flange in Inventor 2013 Sheet Metal Help.

12-20-2013 08:04 AM in reply to: prajwal

Is something like this what you are after (see attached).

Please mark this response as "Accept as Solution" if it answers your question.
-----------------------------------------------------------------------------------------
Autodesk Inventor 2015 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015-SP1 64-bit
http://www.autodesk.com/edcommunity
http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm
Active Contributor
prajwal
Posts: 27
Registered: ‎12-20-2013
Message 7 of 8 (836 Views)

Re: Creating a Flange in Inventor 2013 Sheet Metal Help.

12-20-2013 08:33 AM in reply to: JDMather

Yes Sir, This is exactly what I was looking to do. Thank You so much. 

I was just wondering what is the purpose of the thicken feature that you have used in the model.

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JDMather
Posts: 28,246
Registered: ‎04-20-2006
Message 8 of 8 (831 Views)

Re: Creating a Flange in Inventor 2013 Sheet Metal Help.

12-20-2013 08:54 AM in reply to: prajwal

I "cheated" a bit by using surface modeling to complete the part.

It would have been too much work for me (I'm lazy) to use the sheet metal tools, but because I know that sheet metal is uniform Thickness, it was pretty easy to create trimmed surfaces and Thicken to get the desired geometry.

 

Please mark this response as "Accept as Solution" if it answers your question.
-----------------------------------------------------------------------------------------
Autodesk Inventor 2015 Certified Professional
Autodesk AutoCAD 2013 Certified Professional
Certified SolidWorks Professional
Inventor Professional 2015-SP1 64-bit
http://www.autodesk.com/edcommunity
http://home.pct.edu/~jmather/content/DSG322/inventor_surface_tutorials.htm
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