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mfcorey1

(11,001 posts)
Tue Aug 16, 2016, 09:37 AM Aug 2016

GM Is Gluing Its New Cars Together to Save Weight

Gluing a car together might seem like a dangerous way to reduce weight, but it turns out that the practice of using advanced adhesives to construct vehicles is not so new. The Boeing Dreamliner airplanes have used a kind of super-superglue since 2009. The epoxy resin and carbon fiber-infused plastic used to make the airplane's shell are two of the reasons why these aircraft have done so well commercially. They require less maintenance and, because they're lighter, less fuel.

Here's how it works: carbon fiber is treated at a very high heat and infused with epoxy resin. This creates a composite plastic that is tough and light. The end result of this process is something that looks a lot like black duct tape. Layers of this tape are laid on top of each other by a robot, often wrapped around a molding, until they've formed an aircraft component. Then, the new part is popped into an autoclave to harden further.

Now, General Motors is taking this idea and applying it to their cars. Though it's unclear if GM is using the exact same method as the Boeing Dreamliners, making use of intense glue and lighter materials creates a similar result.

http://www.msn.com/en-us/autos/news/gm-is-gluing-its-new-cars-together-to-save-weight/ar-BBvEnY2?li=BBnbfcL&ocid=mailsignout

45 replies = new reply since forum marked as read
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GM Is Gluing Its New Cars Together to Save Weight (Original Post) mfcorey1 Aug 2016 OP
GM gave Ford grief Angel Martin Aug 2016 #1
Just in time to prepare for their fleet to be replaced with more Chinese and Korean made vehicles. TheBlackAdder Aug 2016 #43
Most natural gas distribution pipe is plastic (HDPE). The very high pressure mains are steel though tonyt53 Aug 2016 #2
Cue Luddite FUD, science be damned... whatthehey Aug 2016 #3
I know the new cars are safer Angel Martin Aug 2016 #44
It's used in general aviation, too. When I.. TreasonousBastard Aug 2016 #4
For decades, the windshield has been part of the structural support of a car whatthehey Aug 2016 #5
Metal is heavy. TreasonousBastard Aug 2016 #6
You're damn right. Orrex Aug 2016 #10
I chortled. Nuclear Unicorn Aug 2016 #15
Lol! demmiblue Aug 2016 #16
Ha! Codeine Aug 2016 #34
Yep. They Should The People. . . ProfessorGAC Aug 2016 #7
The windshield has NEVER been a structural component of a car, truck or anything LOL snooper2 Aug 2016 #8
Your glass cracks- maybe it's the ice in drink ? packman Aug 2016 #9
My myopic rear-view mirror believes the windshield is a structural component of the car... Brother Buzz Aug 2016 #13
hmm..who to believe whatthehey Aug 2016 #18
You should probably read the verbiage under that chart :) snooper2 Aug 2016 #19
Ah those piano wire crash sites. And you should read more of it whatthehey Aug 2016 #21
The whole point is the windshield is NOT DESIGNED AS A STRUCTURAL COMPONENT OF THE CAR snooper2 Aug 2016 #24
So does it provide support or not? Data sue seems to suggest so. whatthehey Aug 2016 #26
Sure LOL- How about some happy music now? snooper2 Aug 2016 #27
So like I said - it provides structural support. Good we are agreed. whatthehey Aug 2016 #32
It absolutely is MichMan Aug 2016 #36
Here you go... ;) Javaman Aug 2016 #11
Those decals suck Brother Buzz Aug 2016 #14
Flippin' sweet Blue_Tires Aug 2016 #22
As long as they adhere to safety standards Orrex Aug 2016 #12
Been gluing their door hinges on their pickups for a long time now madokie Aug 2016 #17
Buy a Ford and get holes in your aluminum bed snooper2 Aug 2016 #20
Aftermarket Ford F-150 truck bed liners are flying of the shelves Brother Buzz Aug 2016 #23
Glue holds caves together. Yes glue titaniumsalute Aug 2016 #25
Duck tape is also strong and comes in different colors... milestogo Aug 2016 #28
GM's engineering department used to watch Red Green? FrodosPet Aug 2016 #37
"Gluing" gives the wrong impression, as you mention Recursion Aug 2016 #29
i tend to buy beaters with heaters....long term will it hold up and can it be fixed dembotoz Aug 2016 #30
Finding a mechanic who isn't intimated by electronics is really important Brother Buzz Aug 2016 #33
before i but i have the mechanic look it over and i ask him if he will hate me if i buy it dembotoz Aug 2016 #38
My son does the same thing... dixiegrrrrl Aug 2016 #45
I had a 99 Firebird made with a fiber reinforced body panels. Quackers Aug 2016 #31
New cars are nothing like old cars. hunter Aug 2016 #35
True to some extent, but.... Adrahil Aug 2016 #41
I'm not a car guy. hunter Aug 2016 #42
Somehow GM will figure out how to fuck this up. Mosby Aug 2016 #39
Remind me not to get a 2017 GM vehicle meow2u3 Aug 2016 #40

TheBlackAdder

(28,209 posts)
43. Just in time to prepare for their fleet to be replaced with more Chinese and Korean made vehicles.
Tue Aug 16, 2016, 04:00 PM
Aug 2016

.


God only knows what those glues will be made of, probably whatever shit is floating in their contaminated rivers.


.

 

tonyt53

(5,737 posts)
2. Most natural gas distribution pipe is plastic (HDPE). The very high pressure mains are steel though
Tue Aug 16, 2016, 09:41 AM
Aug 2016

The HDPE plastic pipe is heated and forced together, creating a bond that is of the same strength as the rest of the pipe.

whatthehey

(3,660 posts)
3. Cue Luddite FUD, science be damned...
Tue Aug 16, 2016, 09:43 AM
Aug 2016

from the same people who think, despite all evidence, that older cars are safer because they have steel bumpers instead of plastic and crumple zones. All the engineers in the last half century, all of physics, is wrong because Great Uncle Hiram walked away from a crash in his Studebaker once.

Angel Martin

(942 posts)
44. I know the new cars are safer
Tue Aug 16, 2016, 06:46 PM
Aug 2016

but I still think the structure of this '62 in this crash test is impressive.



nothing like when they crashed a 50's chev vs a new one.

TreasonousBastard

(43,049 posts)
4. It's used in general aviation, too. When I..
Tue Aug 16, 2016, 09:59 AM
Aug 2016

was doing other business with aircraft mechanics, I tried to get from them some of the stuff Gulfstream uses to glue its planes together. No way, though-- it was super secret, super expensive and not allowed for the general public.

So, I got no problem with GM gluing my car together.

(And maybe now I can get the stuff from body shops...)

whatthehey

(3,660 posts)
5. For decades, the windshield has been part of the structural support of a car
Tue Aug 16, 2016, 10:02 AM
Aug 2016

It's glued in, with a urethane adhesive (some older cars used rubber gaskets and silicon adhesive which is far weaker). Some people just can't shake the idea that only metal is strong.

 

snooper2

(30,151 posts)
8. The windshield has NEVER been a structural component of a car, truck or anything LOL
Tue Aug 16, 2016, 10:26 AM
Aug 2016

That would be like all kinds of fail

How come my glass cracks every time I go hard around a corner?

Brother Buzz

(36,444 posts)
13. My myopic rear-view mirror believes the windshield is a structural component of the car...
Tue Aug 16, 2016, 11:01 AM
Aug 2016

but I know better; I can see right through it.

 

snooper2

(30,151 posts)
19. You should probably read the verbiage under that chart :)
Tue Aug 16, 2016, 11:30 AM
Aug 2016

There is a reason piano wire goes through windshield adhesive like butter.

whatthehey

(3,660 posts)
21. Ah those piano wire crash sites. And you should read more of it
Tue Aug 16, 2016, 11:37 AM
Aug 2016

The whole point is that FMVSS should mandate windshield free tests BECAUSE they provide structural support, so help weak roofs pass muster

 

snooper2

(30,151 posts)
24. The whole point is the windshield is NOT DESIGNED AS A STRUCTURAL COMPONENT OF THE CAR
Tue Aug 16, 2016, 11:57 AM
Aug 2016

I feel like this is going to be one of those circular arguments.

Maybe we can just end with some greatness that is Eminem- And at 2:42 some of the greatest tracks every thrown down!




MichMan

(11,939 posts)
36. It absolutely is
Tue Aug 16, 2016, 02:24 PM
Aug 2016

Worked as an engineer for a major auto glass manufacturer for 18 yrs. Windshields and Backlites absolutely provide structural support to vehicles.

madokie

(51,076 posts)
17. Been gluing their door hinges on their pickups for a long time now
Tue Aug 16, 2016, 11:16 AM
Aug 2016

Back in the '90s actually.

The hinge pin bushing wear out pretty quickly and its a bear to replace them so you're left with a sagging, rattling door.

Buy a Ford and get quality, simple as that.

titaniumsalute

(4,742 posts)
25. Glue holds caves together. Yes glue
Tue Aug 16, 2016, 11:57 AM
Aug 2016

I took a coal mine tour years ago in Beckley, WV. Obvious when they dig a tunnel into a mountain they need to reinforce the ceilings so they do not, in theory at least, collapse. They used to drill massive steel rods with threads and angled brackets into the ceilings but it was very dirty, hot, dusty work. Now they actually drill less and use adhesives to attach the brackets to the ceilings. Yes glue holds caves together.

Recursion

(56,582 posts)
29. "Gluing" gives the wrong impression, as you mention
Tue Aug 16, 2016, 12:16 PM
Aug 2016

I had a Materials class on this in grad school; it's really fascinating stuff.

dembotoz

(16,808 posts)
30. i tend to buy beaters with heaters....long term will it hold up and can it be fixed
Tue Aug 16, 2016, 12:19 PM
Aug 2016

all the fancy doodads and whirligigs seem to be on their last legs by the time i put my key in the ignition....

to find a mechanic who can help you is really important

can these things be fixed and maintained

dembotoz

(16,808 posts)
38. before i but i have the mechanic look it over and i ask him if he will hate me if i buy it
Tue Aug 16, 2016, 03:00 PM
Aug 2016

it has been helpful...

useful conversation because the conversation can shift to
-reliability.....engine ok but the trannys have been an issue
-parts.....its an easy fix but you can not get the parts anymore
-cost of parts....everything from dealer only
-ease to work on....had a please please do not buy the car...have to take the whole damn thing apart to fix routine stuff.


he has not steered me wrong yet

dixiegrrrrl

(60,010 posts)
45. My son does the same thing...
Tue Aug 16, 2016, 08:25 PM
Aug 2016

His dad is a great mechanic, the kid picked up enough to know how to take care of basic things, and he has a friend who buys cars at auction.
Spends 500.00 or so for a car that is old, but reliable for a couple of years, pays very little insurance, gets to work and back just fine.
I am really roud of the lad for not buying hype, and knowing what real value is.

Quackers

(2,256 posts)
31. I had a 99 Firebird made with a fiber reinforced body panels.
Tue Aug 16, 2016, 12:20 PM
Aug 2016

They were adhered to the metal. A couple of them actually detached though. I hope it's improved since 99. Lol

hunter

(38,318 posts)
35. New cars are nothing like old cars.
Tue Aug 16, 2016, 01:06 PM
Aug 2016

With a new car a low speed "fender bender" accident in a parking lot will do little or no damage. In a higher speed accident, the passengers will be protected but the car will be totaled.

Cars are becoming like home appliances or televisions. When they're broken you throw them out and get a new one.

I drive a mid-eighties car which was probably the pinnacle of conventional automobile design, before computers, before exotic materials. The car is heavy and slow, with lots of protective steel. As a teenager one of my kids crashed it, typical teenager stuff, and yes, seatbelts do work... A similar accident would have destroyed a modern automobile, the airbags would have deployed, etc.

It cost me $350 to repair the old car, a few parts from the wrecking yard, hammering a few things back into place, and the car was good to go again.

 

Adrahil

(13,340 posts)
41. True to some extent, but....
Tue Aug 16, 2016, 03:27 PM
Aug 2016

Modern cars are MUCH safer for the occupants. The car is just stuff. Get good insurance and don't sweat the "thing."

hunter

(38,318 posts)
42. I'm not a car guy.
Tue Aug 16, 2016, 03:50 PM
Aug 2016

I can repair cars, sure, but I sorta resent the fact that communities are built that require them.

My ideal form of transportation is walking. I don't think it's a coincidence that places where owning a car is a nuisance, like San Francisco, are very expensive.

One of my nephews lives in San Francisco. He doesn't own a car and he doesn't want one.

My wife and I escaped the Los Angeles commuter lifestyle decades ago, but we still live in a place where cars are somewhat necessary. I could theoretically navigate the bus system for a doctor's appointment, but it would likely be a long adventure with no assurance I'd get there in time unless I left several hours before the appointment.

My car cost $800 dollars and insuring it is inexpensive. I like that.

meow2u3

(24,764 posts)
40. Remind me not to get a 2017 GM vehicle
Tue Aug 16, 2016, 03:23 PM
Aug 2016

I don't want the car coming unglued while I'm driving it. This sounds scary.

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