Lazze Metal Shaping: Keeping Flat Materials Flat When Using the Bead Roller PART 2


Uploaded by lazzemetalshaping on 14.05.2010

Transcript:
Hi I'm Lazze and I'm back here with this floor pan and it's going to be part two for this
video. And you see how this panel came out for on the first video we made and it's curved
this way and many times it's get really oilcan and it's really hard that weld it into a floor
panel for a car or trunk floor for a car. But I'm going to show you what we can do.
As I said on the first video that if we can't do anything after we put the bead on we maybe
can to do something before and here's the key. I going to take a new panel and I going
to make use the same dies in the bead roller when we get over there. But what I going to
do I going to pre-stretch it in the English Wheel with the smallest offset wheel. So I
going to wheel this area where the bead going to be. So I marked it with the blue lines.
So I going to stay in this area on those three beads and wheel it and keep the tracks really,
really close together and the reason why I using a sharp wheel here is I would like to
stay just in that area. So when the reason why this panel that we made before took this
shape is that the bead takes material from the sides. And when that does that it means
the same thing as we should shrinking here and if we shrinking here it's going to be
too much material around this and that is the problem. So that's the reason why I go
into the English Wheel and pre-stretch it so I make it a little longer before we put
the bead on and when we put the bead on the panel going to be more straight. And that's
the key and that took me a long time to figure this out but when you learn there now it's
makes sense and you can make your panels much better at home. Because this wheel is offset
I need to look at the tracks so I stay inside the line there. I don't like to keep my hand on that side
but I need to do it, so. And you see that what happen with the panel now is, when I'm
stretching it it's taking little V shape on the panel like this I don't think I should
go so much more now. And if you can when you do this don't bend it down or anything like
that try to keep it pretty much flat if you can because it's easier to get it into the
bead roller. So now I made this little longer, I going to do the something here same thing
there. How much you need to wheel it up it has to do with how big bead you going to put
in there and how deep the bead is, how tall. If you can wheel the whole length like this
that that's great. But you can wheel shorter tracks as long as you overlap them so you
cover the whole area.
Like that. And then I go over and do this one. If the bead is wider and deeper you need
to pre-stretch little more. Okay. So now you see how, how this looks like and to get it
into the bead roller I recommend to, to go to the table and see if you can bend it down
a little more flat. Like this it's little easier to get it in the bead roller. You can
actually see on this side also the lines. The more exact you can be with the lines you
cover the area the better it is. So now we going to go over to the bead roller and I
going to start with the center one and then I can do the side. And then we can look after
that how it's going to look like.
So we want to put the bead in from this side here to make to bend this back if I put the
bead in there it's actually going to be more bent and I don't want that. So I going to
start move the guide in little there. There we go. I might stretched a little too much
on the sides. Yeah I could have been little smaller, little more narrow on the beads.
So I turn this around and I can make this bead there. And you see already that the panel
taking shape that is more flat again. Because now the bead takes up that extra material
that we pre-stretched. Now, as I said before, always stay on the side that goes into the
machine so you see what happen to the guide. If you see zoom in here you can see that this
side here that's very important that the sheet touching here to the guide.
So now you can see that the panel is more straight here. We didn't have that curve that
we had on the other piece.
So here you see one with the pre-stretching and one without the pre-stretching. And I
just run it in the bead roller. So you can see the difference between those two panels.
And as I said before, how much pre-stretching you need to do it's a little different from
bead to bead. But um you need to do a test piece and see where it goes. And in another
video I going to show you how to adjust ends you can do that with a hammer and a dull aid
but I also have a little tool that I made and it really make the bead round in the end
there. And if you want more information you going to my website, WWW.LazzeMetalShaping.com.