Chamfered-bended sheet metal problem

[MUTTLEY]

Hello everibody,

I have to build a simple sheet metal (20 mm thickness) with 17 mm chamfers

and a bend as you can see in the attached example file

The problem is that i have to bend this part and if i apply the fold feature from sheet metal, the bend portion of the part is not bended and protude out of the plate.(see screenshot in the attached)

On the contrary if i switch to std part and make a bend when i come back to sheet metal and flat it out the flat profile has not the correct shape.

What i mean is: does exist a modeling worflow as in real world:part is cutted from sheet metal-chamfered and finally brake press-bended

Every suggestion/comment will be appreciated.

 

Muttley

Example.ipt

[JD Mather]

On the contrary if i switch to std part and make a bend when i come back to sheet metal and flat it out the flat profile has not the correct shape.

 

Why do you need to go to sheet metal for flat pattern - you already have it before the Bend feature.

Derive Component the part prior to bending and then Bend Part the derived component.

[MUTTLEY]

Hello JD,

Thank you for your suggestion (i was not considering the deriving power!!),anyway i guess i could use sheet metal

for the following reasons:

1) when i make the 2d drawing i can place the two views i need simply by checking the flag (flat pattern-folded model) in the dialog box.

2) If sheet metal tools could be used the bending line would be taken in account by inventor and i have no need to dimension

the bend in the drawing.(if the part has several bend lines this is tedious)

3)Finally making a derived component,naming it,and placing the two different views from two files (parent and child) in the 2d drawing takes a little more time

than working with sheet metal tool.

I highly appreciate your continuos effort helping us

Regards

 

Muttley

[JD Mather]

....(if the part has several bend lines this is tedious)

....Muttley

 

I did not understand the problem description - I thought this was the finished part with only one bend.

[MUTTLEY]

Ok JD, let me clarify:

The part i have posted has only one bend and you can consider it as a simple example.

Our company manufacture booms for digging and demolition hydraulic excavators by welding several plates (15-20 different parts)

These plates have slighty different shapes with chamfers and (sometimes) more than one bend ; sheet metal template normally is the right tool for me but i find that it does not work properly with bended chamfers.

So please consider my initial question as a general one not to be applied only to the specific posted part.

I am sorry if my question was not really clear for you (should be much easier in italian language!!).

Thank you again for your time

 

Muttley.