Sheet Metal Joining: Crimpable or Snap Fit?

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For assembling two sheet metal parts, crimping and snap fit designs are being considered. There is a lack of established snap fit designs for sheet metal, particularly for aluminum sheets around 1/32-1/16" thick. The discussion includes the possibility of creating crimpable flanges and using a crimper to fold and secure the edges. Insights from experienced sheet metal mechanics may provide practical solutions for these joining methods. Overall, exploring both crimping techniques and potential snap fit designs could enhance the assembly process.
DylanB
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I'm looking to assemble two sheet metal parts (in the manner a bit like joining two halves of a box) in a simple manner that is either crimpable or some sort of snap fit. I have not seen any snap fit sheet metal designs and I wonder if there is any sort of standard practice (the aluminum sheet metal will be ~1/32-1/16" thick. Otherwise, is there a good way to create crimpable flanges in order to join these parts?
 
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Can the parts be run through a (stone-age) crimper in which the edges are progressively forced into compliance and folded and mashed? My father is a retired sheet-metal mechanic and I have build a lot of stuff over the years just cadging stuff from him and using his tools.
 

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