On Sun, 14 Sep 2014 19:27:17 -0400, Ed Huntress
wrote:

On Sun, 14 Sep 2014 19:01:59 -0400, wrote:

On Sun, 14 Sep 2014 17:46:40 -0400, Ed Huntress
wrote:

On Mon, 15 Sep 2014 13:44:26 -0700, Gunner Asch
wrote:

On Sun, 14 Sep 2014 15:49:23 -0400, Joe Gwinn
wrote:

In article , Ed Huntress
wrote:

On Sun, 14 Sep 2014 15:21:22 -0400, Joe Gwinn
wrote:

There was a fairly long article in The Wall Street Journal on how the
car makers are using new kinds of adhesives to glue and rivet cars
together, to reduce weight. This is being done with aluminum and
steel. One problem with aluminum is that it's hard to spotweld.

"Super Glue Holds Your Car Together - Those Aren't Bolts Holding Your
Car Together", James R. Hagerty and Mike Ramsey, page B1 of the 9
September 2014 issue of the WSJ.

Unfortunately, it's behind a paywall, but just about every library in
the country gets the WSJ.

Joe Gwinn

Thanks, Joe. I'll be using that one.

Welcome.


Often you can sneak up on a WSJ article without going through the
paywall. In this case, they've changed the headline of the article, so
it's a little trickier.

This does it. In Google or whatever, search on "Super Glues Are the
Secret to Making Cars Lighter." Use the quotes, or not. Try the WSJ
article. Usually, you can get in (I just did). There will be popups
asking you to subscibe but you can just close them.

I'll try this too. I have paid electronic access to the WSJ (costs a
little more when got as a package with the dead-tree version), but many
RCM folk get neither.


Another joining method under development is laser welding. It solves
some problems they've had with conventional spot welding in AHSS
(Advanced High-Strength Steel).

Or laser weld plus glue, for all the same reasons?

Joe Gwinn

They have been using adhesives in aircraft for decades. I helped
installed a Night Sun on a Bell Ranger for a company I worked for back
in the early 1990s and we used A1 Metalset for most of the attachments
(which looked identical to JB Weld)

http://www.silmid.com/products/locti...475-500gm.aspx

One maker, as an example

Gunner

Yeah, the major aircraft makers have been using rivet bonding, using
epoxy, since the '70s. Mostly it's been for wing and fuselage skins. I
wrote my first article about it around 1978.
Did work too well for Grumman. Can't remember off hand if it was the
Yankee or what the model was, but they have virtually 0 resale value
because of bonding and corrosion issues.

Like most things to do with aircraft, it took a while to get it right.
Epoxy and aluminum are not an easy marriage.
As a plane builder I definitely would not try it. Definitely needs a
(well) engineered solution.