J-20 5th Gen Fighter Thread VIII

[sequ]

No, you were clearly not just talking about the video, you clearly posted - and IMO deliberately - a tweet that clearly started with "The production rate of J-20 stealth fighter has doubled in a "dark factory" in China" and then added "the article is based of this video so it's likely credible" !

This was either deliberately done or just naive, otherwise why you didn't add that it DID NOT MEAN the production rate of J-20 stealth fighter has doubled ??

@doggydogdo

Spoiler: lol

...Feel the wrath of the Faustian spirit...

 

[Deino]

?? Why are so ramped up? Calm down mate. If you read it, it says component production is doubled. Now, you can relax.

Read? Thsi is all what he posted! A plain stupid X-post from an overall unreliable accound beginning with this sentence:



... and ending with this comment: "the article is based of this video so it's likely credible".

I think it is more than obvious, what he wanted to say! Otherwise he could have added - as requested per the rules - a translation of the relevant text and a correction of the misleading false claim above!

 

[Blitzo]

?? Why are so ramped up? Calm down mate. If you read it, it says component production is doubled. Now, you can relax.

Because our purpose is to pursuit accuracy.

We don't want to enable misleading tweets and poor interpretations that perpetuate narratives without a solid foundation.

And for twitter accounts like the one linked, they are well known for trying to generate notoriety, spectacle and "big claims" at the expense of accuracy and having a good evidence base. So it is quite important to be hostile to them.

 

[latenlazy]

Maybe, but I'd love to see this actually in action since 3D metals printer only started producing larger parts very recently.

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Here.

 

[taxiya]

From South China Morning Post

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It is better to find more reliable source than SCMP.

At least it’s not Stephen Chen. But as a whole I don’t put SCMP too high on the credibility list.

I don't like SCMP either, but this time it is true.

Here is source from AVIC.

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CAC recieved national award for their "smart factory" in 2024.

The SCMP report is actually quoting a recent visit to CAC smart factory by 科技日报 (Science and Techknowlogy) during a openhouse day orgnized by AVIC. The report is quoted by many other medias including this one.

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[add]
report of the same event by xinhua net. The event happened on May 7th 2026

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[Deino]

It is better to find more reliable source than SCMP.

I don't like SCMP either, but this time it is true.

Here is source from AVIC.

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CAC recieved national award for their "smart factory" in 2024.

The SCMP report is actually quoting a recent visit to CAC smart factory by 科技日报 (Science and Techknowlogy) during a openhouse day orgnized by AVIC. The report is quoted by many other medias including this one.

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[add]
report of the same event by xinhua net. The event happened on May 7th 2026

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Thanks for these sources ... but still I'm pretty sure none of these reports say "The production rate of J-20 stealth fighter has doubled in a "dark factory" in China", that's made-up shit!

 

[PeoplesPoster]

hmm, costing saving part is actually not true. Ti 3D powders are a lot more expensive than your standard alloy.


Maybe, but I'd love to see this actually in action since 3D metals printer only started producing larger parts very recently.


Yes, depends on what you are comparing it too. 3D printed parts are often stronger than casting. You can get different strength 3D printing powders.

Different parts, different requirements lead to different production processes. In many cases, you get so much weight savings with 3D printing that it's the only logical way to make things.


What CNC machine is China importing from Switzerland for AVIC manufacturing?

Actually, Titanium 3d powder prices have gone down dramatically over the past 3 years especially for DED process where the particle size and shape of the powder does not matter as much as DMLS, its more expensive but not at a factor where aerospace will care.

He's probably referring to GF Charmilles now United Machining.

 

[taxiya]

Thanks for these sources ... but still I'm pretty sure none of these reports say "The production rate of J-20 stealth fighter has doubled in a "dark factory" in China", that's made-up shit!

true, the report stated nothing specific on any aircraft. We will never know anything specific from official source as always. We can only say "it is getting faster" but not how much faster.

 

[tphuang]

Actually, Titanium 3d powder prices have gone down dramatically over the past 3 years especially for DED process where the particle size and shape of the powder does not matter as much as DMLS, its more expensive but not at a factor where aerospace will care.

He's probably referring to GF Charmilles now United Machining.

Yes, aerospace will not care, because only additive manufacturing will allow you to produce certain parts in 1 or 2 pieces in the most optimal weight. I'm simply pointing out that less material does not necessarily mean cheaper material cost.

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Here.

it's a little weird for me to see this from 11 years ago, because even now, the issue with 3d printing of metal component is still the speed part. Back then would've taken even longer. But then again since with aerospace, you are not producing things in huge volume, it's okay if the speed is a little slower.

 

[latenlazy]

it's a little weird for me to see this from 11 years ago, because even now, the issue with 3d printing of metal component is still the speed part. Back then would've taken even longer. But then again since with aerospace, you are not producing things in huge volume, it's okay if the speed is a little slower.

Oh if you were referring to speed, I agree it’s still an issue. But the question from a production process standpoint is whether buying more 3D printers to improve simultaneously output is a more cost or time efficient way to scale than expanding blank forging capacity and employing a more intensive milling process. It’s not like shaving large titanium blanks into thin bulkheads is exactly a quick process in its own right.