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Post by stoffe64 on Jun 8, 2017 10:13:27 GMT -5
Here is another photo of the same turbine!
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greazy
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Post by greazy on Jun 8, 2017 16:59:22 GMT -5
ah now i see its riddled with them 😲 thats a fairly obvious sign its done for haha
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greazy
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Post by greazy on Jun 11, 2017 18:55:08 GMT -5
I put the turbine housing on the laythe at a friends workshop squared off the exhaust and machined a vband like edge as best i could. it was a tricky part to get a tool into without clashing with the square flange. it's not an ideal angle but it will still do the job just fine as long as whatever bolts on isn't heavy or is at least supported somehow. I also pressed up the square to round transition last night hopefully ill get a chance to tack it up today. slowly getting closer to the final goal. i have found a refurb kit and a turbine wheel/shaft for 188 munnys on flebay its a lot less than i was expecting but ill still have to wait a bit before i can afford it.
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greazy
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Post by greazy on Jun 11, 2017 18:55:49 GMT -5
transition peices
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Post by racket on Jun 11, 2017 19:43:54 GMT -5
That transition piece is looking good , its a "nasty" piece to make ...............LOL, lost count of how many breakfast cereal boxes I used trying to make templates from
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CH3NO2
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Post by CH3NO2 on Jun 11, 2017 20:52:39 GMT -5
i will make a bender of sorts when i get a chance so i can press it into shape Hi Ryan, What method did you use to create the pattern? Thanks, Tony
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greazy
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Post by greazy on Jun 11, 2017 21:04:19 GMT -5
standard patern devellopment you can probably find youtube videos on how to do it.
try square to round sheetmetal transition
i had to learn how to make cones offset angle cones square to rounds and every type of pipe devellopment ect for my trade so its 2nd nature to me
basicly you draw the shape to the correct dimensions in 2d (the top left circle with a rectangle in it) then do a scale 2d of the side view (the cone shape) number and letter the points you need to fold then you can use a Pythagoras diagram to find the true length of the press lines. then its as simple as starting from one point and scribing arks intil two meet up thats the next point and so on
haha it probably didn't sound simple but there are videos that will explain it step by step
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greazy
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Post by greazy on Jun 12, 2017 8:34:55 GMT -5
i cut the green off the edges of the devellopments and welded them at the seams its a little out of shape right now thats down to me not forming them propperly to start with. the bender i had access to flattened the previous bend at the square end as they share the same start point but not the circle end as these points weren't bunched up. no big deal I'll weld down the square side to the flange and the other end will need a few tappy taps with a hammer to bring it into the designed 5" diamiter circle
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greazy
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Post by greazy on Jun 29, 2017 9:05:56 GMT -5
kicked a few more goals in the last few days i shaped the transition and welded it to the flange plate, bolted it up and tickled it with a die grinder to get a smooth profiled edge into the scroll. I also decided to machine a lip so the flame tube can slide into you can see this clearly in the first pic, it has an offcut of tube sitting in the lip. it was a sloppy fit when i machined it but after welding, it shrunk a bit now its a tight fit with the 5" tube i plan to use. its very typical of stainless to shrink like this when heated red hot for the first time. when i make the flame tube ill just run the oxy over the end to shrink that too and hopefully it becomes a loose fit again. if not im sure the transition will heat up as fast as the flametube negating any worries for distortion. I still plan to have axial clearance for expansion up the other end of the c/c next i need to decide on a total length of the cc and start on the compressor air delivery pipe
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Post by stoffe64 on Jun 30, 2017 8:26:07 GMT -5
DANG!!!,what Nice transition piece you made there....very nicely done!! Cheers /stephan
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greazy
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Post by greazy on Jun 30, 2017 8:56:16 GMT -5
DANG!!!,what Nice transition piece you made there....very nicely done!! Cheers /stephan thanks stephan i hope the rest turns out as well as the transition did
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greazy
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Post by greazy on Jul 21, 2017 19:54:55 GMT -5
quick update officially i havn't achived anything im still playing with ideas for the intersection for the charged air into the c/c i have a few donuts and have cut the cold side housing back for welding on the bends. a friend has recently built a cnc plasma so I got him to make a few flanges and end plates for the end of the cc and we are working on some other devellopments for cones and transitions. ill update again when i have a solid plan of where im going with these ideas ryan
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greazy
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Post by greazy on Jul 26, 2017 19:49:51 GMT -5
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Post by racket on Jul 26, 2017 23:34:36 GMT -5
love the mods you're making :-)
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CH3NO2
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Post by CH3NO2 on Jul 27, 2017 8:45:49 GMT -5
Awesome fab work!
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