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Cross Break in Sheet Metal
- Thread starter RJake
- Start date
SW will not allow a bend to exist inside another bend.
Since I'm not a SM guru. Could you explain or post a link to what a Cross break in SM is?
Thanks,
Scott Baugh, CSWP![[pc2]](/data/assets/smilies/pc2.gif "[pc2] [pc2]")
3DVision Technologies
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faq731-376
faq559-716 - SW Fora Users
Since I'm not a SM guru. Could you explain or post a link to what a Cross break in SM is?
Thanks,
Scott Baugh, CSWP
3DVision Technologies
Merry Christmas
faq731-376
faq559-716 - SW Fora Users
- Thread starter
- #3
The part I'm trying to make is relatively simple. Imagine a recangular piece of SM with the length ~5' and the width ~1.5'. In order to create a debris pan, I need to break this diagonally (2x) by about 5deg. What you end up with is essentially a concave piece of SM. Each of the breaks has to give a little, but it is manufacturable. Once I have the piece cross broken, I'll bend each of the long sides back to the original plane, so it can be mounted.
Thanks again.
Thanks again.
As far as I know, SW cannot do this.
A cross break is a shallow bend, corner-to-corner on a square or rectangular sheet metal panel. It's used as a stiffener. They are common items for duct work and enclosure panels.
[green]"But what... is it good for?"[/green]
Engineer at the Advanced Computing Systems Division of IBM, 1968, commenting on the microchip.
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A cross break is a shallow bend, corner-to-corner on a square or rectangular sheet metal panel. It's used as a stiffener. They are common items for duct work and enclosure panels.
[green]"But what... is it good for?"[/green]
Engineer at the Advanced Computing Systems Division of IBM, 1968, commenting on the microchip.
Have you read faq731-376 to make the best use of Eng-Tips Forums?
Hi Guys,
I had done this in the past, I used a "sketched bend" drawn corner to corner set the angle to maybe 10 dgrees. Then readjust your existing side bends to 80 degrees.
The actual application I did was a 3 sided pan that had 2 sketched bends that initiated in the corners and went to the middle of the side with out a flange. Dont start the line in the exxact corner, back off maybe .10 each direction, and dont end exactley midpint, back those off from each other as well.
Hope this helps,
Ken
I had done this in the past, I used a "sketched bend" drawn corner to corner set the angle to maybe 10 dgrees. Then readjust your existing side bends to 80 degrees.
The actual application I did was a 3 sided pan that had 2 sketched bends that initiated in the corners and went to the middle of the side with out a flange. Dont start the line in the exxact corner, back off maybe .10 each direction, and dont end exactley midpint, back those off from each other as well.
Hope this helps,
Ken
Scott,
A cross break is simply a diagonal bend (very slight bend) from two corners of a part. They are typically used on relatively large flat ares to keep the panel from bowing easily. Most common are doors. You may see an "X" on the front of a sheet metal door or panel, from corner to corner. This was done by two cross breaks.
I have represented a cross break by sketching diagonal construction lines on the face of the part. You could also use a split line to break up the face, this will show up as a phantom line is the drawing as well. To my knowledge, there is no way to actually bend the part to represent this.
A cross break is simply a diagonal bend (very slight bend) from two corners of a part. They are typically used on relatively large flat ares to keep the panel from bowing easily. Most common are doors. You may see an "X" on the front of a sheet metal door or panel, from corner to corner. This was done by two cross breaks.
I have represented a cross break by sketching diagonal construction lines on the face of the part. You could also use a split line to break up the face, this will show up as a phantom line is the drawing as well. To my knowledge, there is no way to actually bend the part to represent this.
- Thread starter
- #8
Drhinehart
Mechanical
It can be done, as some of the others I have done this in the past to create drain pans which sound like what you are doing. I will see if I can recreate this, I am thinking it was not done as a sheet metal part... You might try creating it as a part and convert it to a sheet metal part.
Hope this helps.
Hope this helps.
CorBlimeyLimey
Mechanical
Drhinehart ... Even if you could create this part as a solid & then convert it to Sheet Metal, you would not be able to flatten it. The crossed bends would involve material stretching which (as far as I know) SW (and other comparable solid modellers) cannot handle. However if you have found a way, please, please post back here ... this would be a very useful feature.
Also, the example given by kp5054 is not a crossed bend, just two bends meeting at a point, which does not involve material stretch, and could therfore be flattened.
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& all the best.
Also, the example given by kp5054 is not a crossed bend, just two bends meeting at a point, which does not involve material stretch, and could therfore be flattened.
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