Honda and the "Wonder Weld" innovation
11-01-2013, 08:46 PM
#1
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Honda and the "Wonder Weld" innovation
I am more interested in talking about the new type of motor car that we may be driving in soon...
If anyone else has some informed input then by all means post up. Honda could be on to something here in new car manufacturing.
Mods delete or move this post if you so think....
http://pro.portphillippublishing.com...=MC&g=0&h=true
Should have Googled some more before I posted, none the less interesting developments Honda are making.
http://world.honda.com/news/2012/412...ex.html?from=r
If anyone else has some informed input then by all means post up. Honda could be on to something here in new car manufacturing.
Mods delete or move this post if you so think....
http://pro.portphillippublishing.com...=MC&g=0&h=true
Should have Googled some more before I posted, none the less interesting developments Honda are making.
http://world.honda.com/news/2012/412...ex.html?from=r
11-02-2013, 12:08 PM
#2
It would be a great innovation if fastening the two metals was the only issue.
Aluminum has twice the thermal expansion coefficient of steel. That means that if there is any significant length to the weld, it's going to eventually crack from fatigue due to thermal cycling.
Any joint between steel and aluminum has to be very well protected from the environment. A standard E-coat, primer, base coat and topcoat won't be enough to protect from galvanic corrosion. I'm sure Honda has addressed this, but it isn't a simple fix.
And aluminum welds aren't exactly high strength. The heat-affected zone of the aluminum is going to be quite soft. The part would have to be designed so that area isn't exposed to heavy loads.
Personally, I'd rather see chassis components like this efficiently designed with Advanced High Strength Steels.
Aluminum has twice the thermal expansion coefficient of steel. That means that if there is any significant length to the weld, it's going to eventually crack from fatigue due to thermal cycling.
Any joint between steel and aluminum has to be very well protected from the environment. A standard E-coat, primer, base coat and topcoat won't be enough to protect from galvanic corrosion. I'm sure Honda has addressed this, but it isn't a simple fix.
And aluminum welds aren't exactly high strength. The heat-affected zone of the aluminum is going to be quite soft. The part would have to be designed so that area isn't exposed to heavy loads.
Personally, I'd rather see chassis components like this efficiently designed with Advanced High Strength Steels.
11-02-2013, 12:31 PM
#3
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I am more interested in talking about the new type of motor car that we may be driving in soon...
If anyone else has some informed input then by all means post up. Honda could be on to something here in new car manufacturing.
Mods delete or move this post if you so think....
http://pro.portphillippublishing.com...=MC&g=0&h=true
Should have Googled some more before I posted, none the less interesting developments Honda are making.
http://world.honda.com/news/2012/412...ex.html?from=r
If anyone else has some informed input then by all means post up. Honda could be on to something here in new car manufacturing.
Mods delete or move this post if you so think....
http://pro.portphillippublishing.com...=MC&g=0&h=true
Should have Googled some more before I posted, none the less interesting developments Honda are making.
http://world.honda.com/news/2012/412...ex.html?from=r
http://en.wikipedia.org/wiki/Friction_stir_welding
11-02-2013, 12:50 PM
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It would be a great innovation if fastening the two metals was the only issue.
Aluminum has twice the thermal expansion coefficient of steel. That means that if there is any significant length to the weld, it's going to eventually crack from fatigue due to thermal cycling.
Any joint between steel and aluminum has to be very well protected from the environment. A standard E-coat, primer, base coat and topcoat won't be enough to protect from galvanic corrosion. I'm sure Honda has addressed this, but it isn't a simple fix.
And aluminum welds aren't exactly high strength. The heat-affected zone of the aluminum is going to be quite soft. The part would have to be designed so that area isn't exposed to heavy loads.
Personally, I'd rather see chassis components like this efficiently designed with Advanced High Strength Steels.
Aluminum has twice the thermal expansion coefficient of steel. That means that if there is any significant length to the weld, it's going to eventually crack from fatigue due to thermal cycling.
Any joint between steel and aluminum has to be very well protected from the environment. A standard E-coat, primer, base coat and topcoat won't be enough to protect from galvanic corrosion. I'm sure Honda has addressed this, but it isn't a simple fix.
And aluminum welds aren't exactly high strength. The heat-affected zone of the aluminum is going to be quite soft. The part would have to be designed so that area isn't exposed to heavy loads.
Personally, I'd rather see chassis components like this efficiently designed with Advanced High Strength Steels.
Honda is actually using this in a structural application, and as far as I know the 2013 Accord, which uses this technology, passes the crash tests with flying colours. I think they have figured it out.
11-02-2013, 05:11 PM
#5
It would be a great innovation if fastening the two metals was the only issue.
Aluminum has twice the thermal expansion coefficient of steel. That means that if there is any significant length to the weld, it's going to eventually crack from fatigue due to thermal cycling.
Any joint between steel and aluminum has to be very well protected from the environment. A standard E-coat, primer, base coat and topcoat won't be enough to protect from galvanic corrosion. I'm sure Honda has addressed this, but it isn't a simple fix.
And aluminum welds aren't exactly high strength. The heat-affected zone of the aluminum is going to be quite soft. The part would have to be designed so that area isn't exposed to heavy loads.
Personally, I'd rather see chassis components like this efficiently designed with Advanced High Strength Steels.
Aluminum has twice the thermal expansion coefficient of steel. That means that if there is any significant length to the weld, it's going to eventually crack from fatigue due to thermal cycling.
Any joint between steel and aluminum has to be very well protected from the environment. A standard E-coat, primer, base coat and topcoat won't be enough to protect from galvanic corrosion. I'm sure Honda has addressed this, but it isn't a simple fix.
And aluminum welds aren't exactly high strength. The heat-affected zone of the aluminum is going to be quite soft. The part would have to be designed so that area isn't exposed to heavy loads.
Personally, I'd rather see chassis components like this efficiently designed with Advanced High Strength Steels.
11-02-2013, 06:26 PM
#6
^hahaha.
11-02-2013, 07:28 PM
#7
They know this. I'm sure they've done their homework. My point is that just because two metals can be joined together doesn't mean that it will be extensively used. There will be applications that are worth doing this.
Relatively short welds that can be well protected from the elements whose strength at the weld isn't critical can be used safely if tested well. The design engineers can model these parameters to see if it's appropriate to allow a joint like this.
Relatively short welds that can be well protected from the elements whose strength at the weld isn't critical can be used safely if tested well. The design engineers can model these parameters to see if it's appropriate to allow a joint like this.
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11-03-2013, 07:35 AM
#8
Originally Posted by rob-2' timestamp='1383441096' post='22859016
Write the guys at Honda they probably don't know any of this.
Relatively short welds that can be well protected from the elements whose strength at the weld isn't critical can be used safely if tested well. The design engineers can model these parameters to see if it's appropriate to allow a joint like this.
FYI I see a lot of aluminum welding that doesn't just 'fail' due to the heat involved in the welding process.
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