Gigapress For Cybertruck

[Roland Mills]

Alright... I have a question for anyone on here who understands how 30x cold rolled steel works better than i do. I made a post predicting Elon Musk would build Gigapresses to produce the Cybertruck and got a whole lot of negative comments saying it was impossible. Can cold rolled steel be cast like the Model Y's aluminum frame? I just listened to the Q4 earnings call.... did we just hear Elon say Cybertruck production was delayed because they had to build a larger Gigapress for the Cybertruck?

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[Jhodgesatmb]

Alright... I have a question for anyone on here who understands how 30x cold rolled steel works better than i do. I made a post predicting Elon Musk would build Gigapresses to produce the Cybertruck and got a whole lot of negative comments saying it was impossible. Can cold rolled steel be cast like the Model Y's aluminum frame? I just listened to the Q4 earnings call.... did we just hear Elon say Cybertruck production was delayed because they had to build a larger Gigapress for the Cybertruck?

It will probably be cast aluminum though stainless can be cast and is all the time. Casting is done with molten metal. Cold rolled is sheet stock, I believe.

 

[Crissa]

If it's cast, its not cold rolled, now is it?

-Crissa

 

[Cyberman]

Alright... I have a question for anyone on here who understands how 30x cold rolled steel works better than i do. I made a post predicting Elon Musk would build Gigapresses to produce the Cybertruck and got a whole lot of negative comments saying it was impossible. Can cold rolled steel be cast like the Model Y's aluminum frame? I just listened to the Q4 earnings call.... did we just hear Elon say Cybertruck production was delayed because they had to build a larger Gigapress for the Cybertruck?

The stainless on Cybertruck will be cold rolled. Cast stainless has different properties, and can be brittle, meaning it breaks if bent too much. Cast iron is strong, but brittle. Cold rolled is, by definition, rolled and not cast. Stainless can't be put through a casting machine, which is the machine used to cast the rear quarter of new model Y's.

 

[Crissa]

Stainless can be cast, but it's a much higher temperature than aluminum. It would be a new unknown alloy, as Tesla already had to make a new aluminum alloy for their megacasting.

-Crissa

 

[OneLapper]

Elon said the larger 8k ton Gigapress for the CT was needed to accommodate the larger size of the CT body.

To me that makes it more clear that, although the exterior of CT will be exoskeleton, the bumper supports, suspension, and most certainly the trailer hitch mounting points, will all be incorporated into the rear casting.

" Can cold rolled steel be cast like the Model Y's aluminum frame? I just listened to the Q4 earnings call.... did we just hear Elon say Cybertruck production was delayed because they had to build a larger Gigapress for the Cybertruck? "

No, cold rolled [stainless] steel cannot be cast like the MY's "aluminum frame". As @Crissa pointed out, it's already a product.... cold rolled stainless steel. Any "casting" will be aluminum.

We did not hear Elon say the CT production is delayed. Let's not get all drama. Everything is moving along swimmingly. MAYBE a few CTs will roll off the assembly line by the end of the year. Elon wants that for the marketing impact. It's a good goal to have.

 

[Dids]

Aluminum alloy vs stainless alloy. Does it matter if aluminum includes iron, chromium, carbon, selenium, nickel or if iron includes aluminum, chromium, carbon, selenium, nickel etc.
In the end they start to get nearly the same formula...
You can anneal cast stainless and its properties change making it less brittle and more ductile.

 

[Cyberrides]

I mentioned a few months ago I had a hunch they would be using a Giga press on the Cyber truck.
I Mentioned it to Sandy Munro and a few other places. Lots of people laughed and tried to explain how it was a stupid idea and would not work..
Casting is THEIR natural progression on manufacturing........ Wait till you see the SEMI GOGA PRESS.. LOL
Stainless is a perfect casting material. It makes absolute sense, to do this especially for the truck.
I am excited should get my truck a few months earlier with this announcement.....lol

 

[Roland Mills]

If it's cast, its not cold rolled, now is it?

-Crissa

Thats where my confusion begins. on Yesterday's earnings call Elon mentioned building a larger gigapress to cast the cybertruck... is the cybertruck no longer using cold-rolled stainless steel?

 

[Roland Mills]

It will probably be cast aluminum though stainless can be cast and is all the time. Casting is done with molten metal. Cold rolled is sheet stock, I believe.

right but isn't the Cybertruck made from cold-rolled stainless steel, not aluminum? i am so confused!

 

[Roland Mills]

The stainless on Cybertruck will be cold rolled. Cast stainless has different properties, and can be brittle, meaning it breaks if bent too much. Cast iron is strong, but brittle. Cold rolled is, by definition, rolled and not cast. Stainless can't be put through a casting machine, which is the machine used to cast the rear quarter of new model Y's.

then why is elon building a larger gigapress for the cybertruck?

 

[Roland Mills]

Elon said the larger 8k ton Gigapress for the CT was needed to accommodate the larger size of the CT body.

To me that makes it more clear that, although the exterior of CT will be exoskeleton, the bumper supports, suspension, and most certainly the trailer hitch mounting points, will all be incorporated into the rear casting.

" Can cold rolled steel be cast like the Model Y's aluminum frame? I just listened to the Q4 earnings call.... did we just hear Elon say Cybertruck production was delayed because they had to build a larger Gigapress for the Cybertruck? "

No, cold rolled [stainless] steel cannot be cast like the MY's "aluminum frame". As @Crissa pointed out, it's already a product.... cold rolled stainless steel. Any "casting" will be aluminum.

We did not hear Elon say the CT production is delayed. Let's not get all drama. Everything is moving along swimmingly. MAYBE a few CTs will roll off the assembly line by the end of the year. Elon wants that for the marketing impact. It's a good goal to have.

THIS was super helpful! thank you!

 

[Crissa]

is the cybertruck no longer using cold-rolled stainless steel?

That segment of the body was never cold-rolled. It's not on the outside. It's what connects the motor to the exoskeleton and the battery pack. It's not the exoskeleton.

then why is elon building a larger gigapress for the cybertruck?

Because the Cybertruck is bigger than the Model Y.

-Crissa

 

[Newton]

casting wont be for the stainless... thats just not how it works... they buy sheets to fold to shape.

casting is for the cab maybe, and other internal structures. i was wondering what the cab would be made of now we know.

 

[Cyberman]

then why is elon building a larger gigapress for the cybertruck?

Giga press is for aluminum

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