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berkshire, I'm only making 200 number - sure if it gives me trouble its easy enough to repair and if i need better quality i can do that later.

berkshire, I think your right - what would you you suggest I make the die set of would mild steel do. In relation to casting I think it would be to expensive.

Sounds like to make a sectional flight its a case of cut out slit ring from a steel plate. Then put the plate in press and push against a die type former and with a bit of trail and error i'm sure this will work. Thanks for you helpful comments.

Yeah its a common enough item you see them everywere, but i can't see a machine that can make them.

I know it going to require a bit of heavy duty cutting and welding - I'm looking forword to getting started on this project. I'm 99.99% sure to create the sectional helical shape I need to cut two concentric circles - the formaula for 700 od and 90mm tube and 125mm pitch is plate od =...

Yeah I think an ordinary press brake would do the job - only thing is I have 200 of these to make and it would be very slow and they would all be slightly different just look very amateur. I was thinking of a former type template then place in the split ring on it and and then press it between...

You would think it would have to be an ellipse but i'm 99% sure its just two circles the od is square root of od squared plus pitch sqaured and the id is sqaure root of id squared plus pitch sqaured. This then gives me a flat spilt ring plate - how do i get this into a helicoil shape you would...

I must try the card. It's getting the cut steel split circles into the helical shape that i can't figure out.

I'm pretty sure they are just two circles.

Yeah I'm neally 100% sure the first step is to cut a circle and the diameter would be a bit bigger ie od = [(700^2)+(125^2)]^0.5 = 711mm and the id is alos a bit bigger [(90^2)+(125^2)]^0.5 = 154mm. I'm guessing they are pressed a part just a bit more than the pitch to allow for sring back -...

Hello, I'm trying to manufacture a steel auger flight these are to be screwed into the ground and act as an anchor, the outside diameter of the flight is 700mm and 20mm thick and are to be welded to a 90mm diameter shaft and the pitch is 125mm. I’m wondering how to manufacture these auger...