Turning helix/spiral into sheet metal

Is there a way I can turn a helix into sheet metal so that itcan be laser cut?

What I have is a 16ga SS, 47" diameter with 4" hole in the middlewith 12" rise, I need to turn this into sheet metal but cannotfiugure out how. I've tried making a half circle and using a 6"rise instead but nothing works, am I missing something?

SolidworksSheet Metal