ynok20

how is mandrel bent pipe made vs the way crushed bent pipe is made for an exhaust

sp3cialk

i can read the future...someone is gonna tell you to search...

Mr.Modify

iTrader: (3)

yea ..that's the best thing to do..T3h Interweb OWns j00!!

ynok20

i dont give a fu(k i already did and i quit

Mr.Modify

iTrader: (3)

dude just type Mandrel Bent Vs. Crush Bent and read on

go to google and do this or www.ask.com

aznboysrfr

iTrader: (10)

unless you're running high hp applications, then it really doesn't matter

ctx66

first image is mandrel bent pipes. press bent is the second image. mandrel bent pipes are the same size the whole way on the inside, press bent pipes arent and can restrict flow. mandrel costs more $

robbclark1

iTrader: (8)

http://www.se-r.net/header_exhaust/m...rush_bends.htm

ctx is right

steak84ss

you can make pipes according to the pipe bender. Chopper frames are all made with mandrel bent pipes. BTW, which frame shoud I get?

modoman

iTrader: (6)

^you should get a hot match frame, they make kick *** bikes if thats what youre talkin about?

steak84ss

I think I found a Kraft-Tech I like. Rigid, 4 up, 1.5 out, 250 wide. Already got and BRAND SPANKIN NEW H.D. Evo 80" 1340, Baker 5 speed, Custom Chrome front end, Holley Screamin' Eagle 2 barrel carb. Frame is next. Can't wait to start mockin' that bad boy up. This will be my first build. I'm "BigSteak" on www.ClubChopper.com if anyone wants to learn about bikes. Great website. Wow, that was a total gratuitous plug.

ynok20

what i want to know is how do they bend the mandrel pipe do they heat it up and bend it or what

modoman

iTrader: (6)

they put the pipe in an assembly of a couple wheels, and it will bend around the 1 wheel while the other wheel keeps the pipe moving through... theres several ways to get those smooth bends. some pipes you have to heat up before you put them in one of those wheels. also you can just heat up a pipe and bend it across something round and it will be smooth just the same

steak84ss

PIPE BENDER!! I'm actually looking into then now. Search Pipe/Tubing Bender on google. You'll see a bunch of styles out there on the market.

modoman

iTrader: (6)

theres also high dollar machines that will bend a pipe perfectly even in sharp turns... mandrel bending just means bending a pipe smoothly without kinks

gaugeof12

Crush & mandrel bent have the same basics. They both use use a bending die(wheel) and the tube is pushed around it. Mandrel bending however has a mandrel (usually a cylindrical axle, spindle, or arbor inserted into a hole in a piece of work to support it during machining) inserted into the tube to make sure there are no wrinkles.


Typical 3 ball mandrel.

ynok20

thanks guys