It would appear there isn't... there should be. looks like there's another thread about using an arc for a section line:
i'm surprised this hasn't been addressed thus far.
Hi,
This is not possible now. But there is a similar idea that would need some support.
https://forums.autodesk.com/t5/inventor-ideas/section-views-options/idi-p/7943629
Thanks,
Viktor
Hello @Anonymous here is another idea that is very similar that could use some votes:
Idea: Improved Section View Tool
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