Hi. I have an aluminum piece with a hole. There was a tube pressed into
that hole, but I pressed it out and want to install a different tube. The
inner diameter of the hole is slightly larger than the new tube that I want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something that I
can press through the hole to make it a smaller hole, causing a press fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers. It is
goteverwhatyouneed at yahoo dot com.

Thank you very much.

JWho wrote:

Hi. I have an aluminum piece with a hole. There was a tube pressed into
that hole, but I pressed it out and want to install a different tube. The
inner diameter of the hole is slightly larger than the new tube that I want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something that I
can press through the hole to make it a smaller hole, causing a press fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers. It is
goteverwhatyouneed at yahoo dot com.

Thank you very much.

http://68.72.74.108/PRODUCTS/660.htm

Tom

In article hQy4f.439523$x96.344304@attbi_s72,
says...
Hi. I have an aluminum piece with a hole. There was a tube pressed into
that hole, but I pressed it out and want to install a different tube. The
inner diameter of the hole is slightly larger than the new tube that I want
to press fit into the hole.

Loctite 609...

http://tds.loctite.com/tds5/pdf.asp?tid=1&pid=609
&lang=EN&PDF

Ned Simmons

On Sun, 16 Oct 2005 20:35:25 GMT, "JWho" wrote:

Hi. I have an aluminum piece with a hole. There was a tube pressed into
that hole, but I pressed it out and want to install a different tube. The
inner diameter of the hole is slightly larger than the new tube that I want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something that I
can press through the hole to make it a smaller hole, causing a press fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers. It is
goteverwhatyouneed at yahoo dot com.

Thank you very much.

A knurling tool will not work if the assembly needs to be sealed. This
is because of the way the knurling works. The metal is displaced from
one area to another. The knurling tool for inside knurls looks like a
screw. So part of the diameter will be smaller but the other parts
will be bigger. This method may be OK for valve guides in engines but
probably isn't any good for your application. Loctite makes products
to glue cylindrical parts together. Done correctly the finished
assembly will be as good or better than a press fit. Try a web search
for the proper product and a local fastener supplier to buy it from.
ERS

"JWho" wrote in message
news:hQy4f.439523$x96.344304@attbi_s72...
Hi. I have an aluminum piece with a hole. There was a tube pressed into
that hole, but I pressed it out and want to install a different tube. The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something that
I
can press through the hole to make it a smaller hole, causing a press fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers. It
is
goteverwhatyouneed at yahoo dot com.

Thank you very much.


Jwho

If you intend to slip the mating tube into the "too large' hole only once,
and you dont want to invest in a knurler. you might try this crude method.

Punch the surface of the tube thats slightly too small with a center
punch. Put as many punch marks as you feel necessary. But you must punch
enough marks to make the tube a press fit.
Get some Loctite intended for locking bearings into their sockets and
apply to the punched surface.
Slip the tubes together and wait for the Loctite to set.

Jerry

Here are 2 more ideas:

Install the tube. Use a center punch on the plate holding the
tube, punching a series of dents around the tube. This should
swage the plate material tight to the tube. I would still add the
Loctite.

Does the problem lend itself to installing the tube and driving a
tapered pin/swage tool inside the pipe to swell it outward to the
plate? This could perhaps be done to the tube before assembly,
but maintaining tolerances would be tricky.

Perhaps a combination of both.

(top posted for your convenience)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Keep the whole world singing . . . .
DanG (remove the sevens)




"JWho" wrote in message
news:hQy4f.439523$x96.344304@attbi_s72...
Hi. I have an aluminum piece with a hole. There was a tube
pressed into
that hole, but I pressed it out and want to install a different
tube. The
inner diameter of the hole is slightly larger than the new tube
that I want
to press fit into the hole. The new tube can be inserted into
the hole
without a press fit, but it does not rattle around. This is not
a tight
enough fit. It has to be a press fit. I am hoping there is a
tool to
reduce the inner diameter of the aluminum hole so that the new
tube is a
tighter fit. From searching around, it seems that I may need a
knurling
tool. I have a 20 ton shop press, and I am hoping to find
something that I
can press through the hole to make it a smaller hole, causing a
press fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid
spammers. It is
goteverwhatyouneed at yahoo dot com.

Thank you very much.

"Tom" wrote in message
...
JWho wrote:

Hi. I have an aluminum piece with a hole. There was a tube pressed into
that hole, but I pressed it out and want to install a different tube.
The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something that
I
can press through the hole to make it a smaller hole, causing a press fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers. It
is
goteverwhatyouneed at yahoo dot com.

Thank you very much.

http://68.72.74.108/PRODUCTS/660.htm

Tom

or Permatex 620 sleeve retainer.

Here is one more idea. You can snug a hole by tapping a ball bearing that
is larger than the hole at the mouth of the hole.

Another way is to drill and ream tapered holes around the diameter of the
hole and to tap in taper pins to these holes. When reaming the holes with
the tapered reamer, ream every other hole and then ream the remaining holes
from the other side of the work piece.

Or perhaps an easier solution would be to make a tube with a larger outside
diameter.


--

__
Roger Shoaf

Important factors in selecting a mate:
1] Depth of gene pool
2] Position on the food chain.



"JWho" wrote in message
news:hQy4f.439523$x96.344304@attbi_s72...
Hi. I have an aluminum piece with a hole. There was a tube pressed into
that hole, but I pressed it out and want to install a different tube. The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something that
I
can press through the hole to make it a smaller hole, causing a press fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers. It
is
goteverwhatyouneed at yahoo dot com.

Thank you very much.

JWho wrote:

Hi. I have an aluminum piece with a hole. There was a tube pressed into
that hole, but I pressed it out and want to install a different tube. The
inner diameter of the hole is slightly larger than the new tube that I want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something that I
can press through the hole to make it a smaller hole, causing a press fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers. It is
goteverwhatyouneed at yahoo dot com.

Thank you very much.


Hit the thing a couple of times with a big hammer.

John

In article hQy4f.439523$x96.344304@attbi_s72,
"JWho" wrote:

.....The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit.

Why not expand the tube? Can you fit a #6 cap inside the tube?

--
Free men own guns, slaves don't
www.geocities.com/CapitolHill/5357/

"JWho" wrote in message
news:hQy4f.439523$x96.344304@attbi_s72...
Hi. I have an aluminum piece with a hole. There was a tube pressed
into
that hole, but I pressed it out and want to install a different tube.
The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the
hole
without a press fit, but it does not rattle around. This is not a
tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is
a
tighter fit. From searching around, it seems that I may need a
knurling
tool. I have a 20 ton shop press, and I am hoping to find something
that I
can press through the hole to make it a smaller hole, causing a press
fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers.
It is
goteverwhatyouneed at yahoo dot com.

Thank you very much.


Swage the end of the tube to a larger size to fit in the hole properly.



----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption =----

What i have seen done is use a 100 degree punch and punch around the hole as
many places as possible forcing material into the I.D


"JWho" wrote in message
news:hQy4f.439523$x96.344304@attbi_s72...
Hi. I have an aluminum piece with a hole. There was a tube pressed into
that hole, but I pressed it out and want to install a different tube. The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something that
I
can press through the hole to make it a smaller hole, causing a press fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers. It
is
goteverwhatyouneed at yahoo dot com.

Thank you very much.

"Steve R." wrote in message
...

"Tom" wrote in message
...
JWho wrote:

Hi. I have an aluminum piece with a hole. There was a tube pressed
into
that hole, but I pressed it out and want to install a different tube.
The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a
tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is
a
tighter fit. From searching around, it seems that I may need a
knurling
tool. I have a 20 ton shop press, and I am hoping to find something
that
I
can press through the hole to make it a smaller hole, causing a press
fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers.
It
is
goteverwhatyouneed at yahoo dot com.

Thank you very much.

http://68.72.74.108/PRODUCTS/660.htm

Tom

or Permatex 620 sleeve retainer.


Hi. Thank you both for the suggestions. I am going to take some pictures
of all the items and give some dimensions in a later post.

Thank you.

"Ned Simmons" wrote in message
...
In article hQy4f.439523$x96.344304@attbi_s72,
says...
Hi. I have an aluminum piece with a hole. There was a tube pressed
into
that hole, but I pressed it out and want to install a different tube.
The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole.

Loctite 609...

http://tds.loctite.com/tds5/pdf.asp?tid=1&pid=609
&lang=EN&PDF

Ned Simmons

Hi. Thank you for the suggestion. To help clarify my situation, I am going
to take some pictures of all the items and give some dimensions in a later
post.

Thank you.

"Eric R Snow" wrote in message
...
On Sun, 16 Oct 2005 20:35:25 GMT, "JWho" wrote:

Hi. I have an aluminum piece with a hole. There was a tube pressed into
that hole, but I pressed it out and want to install a different tube.
The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something that
I
can press through the hole to make it a smaller hole, causing a press fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers. It
is
goteverwhatyouneed at yahoo dot com.

Thank you very much.

A knurling tool will not work if the assembly needs to be sealed. This
is because of the way the knurling works. The metal is displaced from
one area to another. The knurling tool for inside knurls looks like a
screw. So part of the diameter will be smaller but the other parts
will be bigger. This method may be OK for valve guides in engines but
probably isn't any good for your application. Loctite makes products
to glue cylindrical parts together. Done correctly the finished
assembly will be as good or better than a press fit. Try a web search
for the proper product and a local fastener supplier to buy it from.
ERS

Hi. Thank you for the suggestion. To help clarify my situation, I am going
to take some pictures of all the items and give some dimensions in a later
post.

The fit doesn't have to be watertight, if that is what you were referring
to.

I saw a bunch of knurl tools at Knurlkraft. They just looked like a little
wheel with some grooves on the outside. Would that be the tool I need, if I
go that direction?

Thank you.

"Jerry Martes" wrote in message
news:hSz4f.3373$t12.3150@trnddc03...

"JWho" wrote in message
news:hQy4f.439523$x96.344304@attbi_s72...
Hi. I have an aluminum piece with a hole. There was a tube pressed
into
that hole, but I pressed it out and want to install a different tube.
The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something
that
I
can press through the hole to make it a smaller hole, causing a press
fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers.
It
is
goteverwhatyouneed at yahoo dot com.

Thank you very much.


Jwho

If you intend to slip the mating tube into the "too large' hole only
once,
and you dont want to invest in a knurler. you might try this crude method.

Punch the surface of the tube thats slightly too small with a center
punch. Put as many punch marks as you feel necessary. But you must
punch
enough marks to make the tube a press fit.
Get some Loctite intended for locking bearings into their sockets and
apply to the punched surface.
Slip the tubes together and wait for the Loctite to set.

Jerry



Hi. Thank you for the information. To help clarify everything, I am going
to take some pictures of all the parts and give some dimensions.

I plan to assemble it only one time and never remove it again. The new tube
is real hard steel, so I don't know if I can centerpunch it like that.
Someone else might be able to, but probably not me. :-)

Thanks again.

"DanG" wrote in message
news:e6A4f.4496$OM4.1727@dukeread06...


Here are 2 more ideas:

Install the tube. Use a center punch on the plate holding the
tube, punching a series of dents around the tube. This should
swage the plate material tight to the tube. I would still add the
Loctite.

Does the problem lend itself to installing the tube and driving a
tapered pin/swage tool inside the pipe to swell it outward to the
plate? This could perhaps be done to the tube before assembly,
but maintaining tolerances would be tricky.

Perhaps a combination of both.

(top posted for your convenience)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Keep the whole world singing . . . .
DanG (remove the sevens)




"JWho" wrote in message
news:hQy4f.439523$x96.344304@attbi_s72...
Hi. I have an aluminum piece with a hole. There was a tube
pressed into
that hole, but I pressed it out and want to install a different
tube. The
inner diameter of the hole is slightly larger than the new tube
that I want
to press fit into the hole. The new tube can be inserted into
the hole
without a press fit, but it does not rattle around. This is not
a tight
enough fit. It has to be a press fit. I am hoping there is a
tool to
reduce the inner diameter of the aluminum hole so that the new
tube is a
tighter fit. From searching around, it seems that I may need a
knurling
tool. I have a 20 ton shop press, and I am hoping to find
something that I
can press through the hole to make it a smaller hole, causing a
press fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid
spammers. It is
goteverwhatyouneed at yahoo dot com.

Thank you very much.





Hi. Thanks for the suggestions. Does swage mean similar to swell?? I
don't know what a swage tool is, but I don't want to try to hammer anything
into the junction.

I am going to take some pictures of all the parts and give some dimensions
in a later post and maybe that will help to clarify everything.

Thanks again.

"Roger Shoaf" wrote in message
...
Here is one more idea. You can snug a hole by tapping a ball bearing that
is larger than the hole at the mouth of the hole.

Another way is to drill and ream tapered holes around the diameter of the
hole and to tap in taper pins to these holes. When reaming the holes with
the tapered reamer, ream every other hole and then ream the remaining
holes
from the other side of the work piece.

Or perhaps an easier solution would be to make a tube with a larger
outside
diameter.


--

__
Roger Shoaf

Important factors in selecting a mate:
1] Depth of gene pool
2] Position on the food chain.



"JWho" wrote in message
news:hQy4f.439523$x96.344304@attbi_s72...
Hi. I have an aluminum piece with a hole. There was a tube pressed
into
that hole, but I pressed it out and want to install a different tube.
The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something
that
I
can press through the hole to make it a smaller hole, causing a press
fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers.
It
is
goteverwhatyouneed at yahoo dot com.

Thank you very much.





Hi. Thank you for the suggestions. Due to the piece, I don't want to drill
any holes into the piece.

I am going to take some pictures and get some measurements to make all this
clearer. I am going to post again later with that.

Thank you.

"john" wrote in message
...


JWho wrote:

Hi. I have an aluminum piece with a hole. There was a tube pressed
into
that hole, but I pressed it out and want to install a different tube.
The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something
that I
can press through the hole to make it a smaller hole, causing a press
fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers.
It is
goteverwhatyouneed at yahoo dot com.

Thank you very much.


Hit the thing a couple of times with a big hammer.

John

.... and not get to use my new shop press? :-)

"Nick Hull" wrote in message
...
In article hQy4f.439523$x96.344304@attbi_s72,
"JWho" wrote:

.....The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit.

Why not expand the tube? Can you fit a #6 cap inside the tube?

--
Free men own guns, slaves don't
www.geocities.com/CapitolHill/5357/

Hi. The new tube is steel, and the piece with the hole is aluminum, so I
thought it would be easier to make the hole smaller. Sorry to be ignorant,
but I have no clue what a #6 cap is. The tubes are about 30mm or so in
diameter. The inner diamater is around 10mm or so. I'll have to check that
and report back.

I am going to take some pictures and some measurements of all the parts,
then make a post later. That may help to further explain all this.

Thank you.

"Steve W." wrote in message
...

"JWho" wrote in message
news:hQy4f.439523$x96.344304@attbi_s72...
Hi. I have an aluminum piece with a hole. There was a tube pressed
into
that hole, but I pressed it out and want to install a different tube.
The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the
hole
without a press fit, but it does not rattle around. This is not a
tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is
a
tighter fit. From searching around, it seems that I may need a
knurling
tool. I have a 20 ton shop press, and I am hoping to find something
that I
can press through the hole to make it a smaller hole, causing a press
fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers.
It is
goteverwhatyouneed at yahoo dot com.

Thank you very much.


Swage the end of the tube to a larger size to fit in the hole properly.



----== Posted via Newsfeeds.Com - Unlimited-Uncensored-Secure Usenet
News==----
http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+
Newsgroups
----= East and West-Coast Server Farms - Total Privacy via Encryption
=----

Hi. Thank you for the suggestion. Sorry to be ignorant, but what does
"swage" mean?

I am going to take some pictures and dimensional measurements, then make
another post. I hope that will help to clarify the situation.

Thank you.

"Bob and Lori Holcomb" wrote in message
...
What i have seen done is use a 100 degree punch and punch around the hole
as
many places as possible forcing material into the I.D


"JWho" wrote in message
news:hQy4f.439523$x96.344304@attbi_s72...
Hi. I have an aluminum piece with a hole. There was a tube pressed
into
that hole, but I pressed it out and want to install a different tube.
The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something
that
I
can press through the hole to make it a smaller hole, causing a press
fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

Sorry to not list a real e-mail address, but it is to avoid spammers.
It
is
goteverwhatyouneed at yahoo dot com.

Thank you very much.





Hi. When you say "100 degree punch", is that the angle of the point??
Sorry, but I am not real familiar with that.

I am going to take some pictures and some measurements later, then make
another post to try to help clarify all this.

Thank you.

"JWho" wrote in message
news:hQy4f.439523$x96.344304@attbi_s72...
Hi. I have an aluminum piece with a hole. There was a tube pressed into
that hole, but I pressed it out and want to install a different tube. The
inner diameter of the hole is slightly larger than the new tube that I
want
to press fit into the hole. The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit. From searching around, it seems that I may need a knurling
tool. I have a 20 ton shop press, and I am hoping to find something that
I
can press through the hole to make it a smaller hole, causing a press fit
for the new tube and aluminum piece.

Does anyone have any suggestions on what to do?

If the precise i.d. of the tube is not critical at the point where it
presses into the plate, simply expand the tube a bit. You could make a
simple drive-mandrel that will swell the tube a couple-thou, then press it
in as you desire.

LLoyd

In article l7K4f.444149$_o.431583@attbi_s71,
"JWho" wrote:

"Nick Hull" wrote in message
...
In article hQy4f.439523$x96.344304@attbi_s72,
"JWho" wrote:

.....The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a tight
enough fit. It has to be a press fit. I am hoping there is a tool to
reduce the inner diameter of the aluminum hole so that the new tube is a
tighter fit.

Why not expand the tube? Can you fit a #6 cap inside the tube?

--
Free men own guns, slaves don't
www.geocities.com/CapitolHill/5357/

Hi. The new tube is steel, and the piece with the hole is aluminum, so I
thought it would be easier to make the hole smaller. Sorry to be ignorant,
but I have no clue what a #6 cap is. The tubes are about 30mm or so in
diameter. The inner diamater is around 10mm or so. I'll have to check that
and report back.

A #6 cap is the fuse activated detonator for commercial dynamite. They
are about 8mm in diameter and the shock wave should expand the tube.
10mm wall thickness is a lot, you might have to use more than one.
OTOH, when you get the right charge the tube will be swaged in real
tight.

--
Free men own guns, slaves don't
www.geocities.com/CapitolHill/5357/

"Nick Hull" wrote in message
...
In article l7K4f.444149$_o.431583@attbi_s71,
"JWho" wrote:

"Nick Hull" wrote in message
...
In article hQy4f.439523$x96.344304@attbi_s72,
"JWho" wrote:

.....The new tube can be inserted into the hole
without a press fit, but it does not rattle around. This is not a
tight
enough fit. It has to be a press fit. I am hoping there is a tool
to
reduce the inner diameter of the aluminum hole so that the new tube
is a
tighter fit.

Why not expand the tube? Can you fit a #6 cap inside the tube?

--
Free men own guns, slaves don't
www.geocities.com/CapitolHill/5357/

Hi. The new tube is steel, and the piece with the hole is aluminum, so
I
thought it would be easier to make the hole smaller. Sorry to be
ignorant,
but I have no clue what a #6 cap is. The tubes are about 30mm or so in
diameter. The inner diamater is around 10mm or so. I'll have to check
that
and report back.

A #6 cap is the fuse activated detonator for commercial dynamite. They
are about 8mm in diameter and the shock wave should expand the tube.
10mm wall thickness is a lot, you might have to use more than one.
OTOH, when you get the right charge the tube will be swaged in real
tight.

--
Free men own guns, slaves don't
www.geocities.com/CapitolHill/5357/

Thanks for the reply. I'll have to pass on that method.

JWho wrote:
Hi. Thank you for the suggestion. To help clarify my situation, I am going
to take some pictures of all the items and give some dimensions in a later
post.

This is NOT a binaries newsgroup. Do not post them here. Use your own
web site or the dropbox.

Ted

Basically you drive a pin into the hole of the tube and that causes the tube
to expand in diameter a bit. The pin will have a tapered end on it so that
it starts into the hole without forcing. Lubrication is a necessity when
doing this!
If the tube is going to be permanent and is a tube just for price
conserations or weight considerations, I'd just find a ball bearing (or turn
a similar pin) that is large enough to force a good fit and drive that into
the hole of the tubing with a press and you will have a nice tight fit.

--
Why do penguins walk so far to get to their nesting grounds?

Couldn't you just drill the hole bigger and press in a bushing sized to
fit both the hole and the tube? This seems simpler than many of the
other ideas.

"Ted Edwards" wrote in message
news:ZRR4f.40037$ir4.31867@edtnps90...
JWho wrote:
Hi. Thank you for the suggestion. To help clarify my situation, I am
going
to take some pictures of all the items and give some dimensions in a
later
post.

This is NOT a binaries newsgroup. Do not post them here. Use your own
web site or the dropbox.

Ted

Hi. No need to worry. I am going to post them to my own website and put
links here. Sorry for any confusion.

Thanks.

"woodworker88" wrote in message
oups.com...
Couldn't you just drill the hole bigger and press in a bushing sized to
fit both the hole and the tube? This seems simpler than many of the
other ideas.


Hi. It's a strong stress area, so I think that won't work. It is
motorcycle steering parts. I have been too busy with work to get the
pictures taken, posted to my website and links posted here. The original
hole is 31mm+, the original shaft is 31mm+ (about .005" - .007" larger than
the hole), and I am wanting to replace the original shaft with a different
shaft that I have yet to get measured, but it is reported to be smaller in
diameter than the hole by .002" or so. When switching to the different
shaft, I am hoping to maintain a similar fit with the original piece. I
guess it needs to be .007" - .01" smaller in ID. I still have to check it
out and make sure, though.

Thanks.