General Discussion
Related: Editorials & Other Articles, Issue Forums, Alliance Forums, Region ForumsGM 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
Angel Martin
(942 posts)for not using steel in their pickups.
Now GM is not even using metal...
TheBlackAdder
(28,209 posts).
God only knows what those glues will be made of, probably whatever shit is floating in their contaminated rivers.
.
tonyt53
(5,737 posts)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)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)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)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)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.
TreasonousBastard
(43,049 posts)Orrex
(63,216 posts)Nuclear Unicorn
(19,497 posts)ProfessorGAC
(65,078 posts). . .who's lives were saved by kevlar that only metal is strong.
snooper2
(30,151 posts)That would be like all kinds of fail
How come my glass cracks every time I go hard around a corner?
packman
(16,296 posts)Drinking and driving
Brother Buzz
(36,444 posts)but I know better; I can see right through it.
whatthehey
(3,660 posts)Does the chart on page 1 look like it's doing nothing?
snooper2
(30,151 posts)There is a reason piano wire goes through windshield adhesive like butter.
whatthehey
(3,660 posts)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)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!
whatthehey
(3,660 posts)snooper2
(30,151 posts)whatthehey
(3,660 posts)MichMan
(11,939 posts)Worked as an engineer for a major auto glass manufacturer for 18 yrs. Windshields and Backlites absolutely provide structural support to vehicles.
Javaman
(62,531 posts)Brother Buzz
(36,444 posts)Where are the flames?
Blue_Tires
(55,445 posts)Orrex
(63,216 posts)madokie
(51,076 posts)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.
snooper2
(30,151 posts)Brother Buzz
(36,444 posts)titaniumsalute
(4,742 posts)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.
milestogo
(16,829 posts)FrodosPet
(5,169 posts)Recursion
(56,582 posts)I had a Materials class on this in grad school; it's really fascinating stuff.
dembotoz
(16,808 posts)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
Brother Buzz
(36,444 posts)dembotoz
(16,808 posts)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)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)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)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)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)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.
Mosby
(16,319 posts)meow2u3
(24,764 posts)I don't want the car coming unglued while I'm driving it. This sounds scary.