Japanese Armor Manufacturing

With two Japanese tanks in my stash and one of them going to be built in the near future, now is probably a good time to ask how the Japanese manufactured armor for their tanks?

IE: What processes did they use? Were parts machined, torch cut?

To my very limited knowledge only the very latest Japanese tanks (Chi-To comes to mind) had any sort of cast armoring since Japan didn’t really have the industry for it.

I’m mainly curious about torch cutting and how they would’ve made thicker armor plates since I want to build an O-I in the future. (Very excited for that)
World of Tanks, not exactly renown for historical accuracy, has the O-I with the side 35mm skirt flame cut which artistically looks very nice but is it accurate?

And lastly, welding? Did they do it with their earlier tanks? When did they start doing it if not? Would be doing weld beads for them be similar to other tanks?
(Mainly since if it is I probably could do nightshift’s method for weld beads)

Lastly as a slightly off topic question, any cool unique Japanese tank schemes? I feel like the standard tank camo scheme would be a bit boring on a large tank such as the O-I and with Japanese armor camos being a sort of case by case thing, I’m genuinely curious as to what weird unique camos they used. Either that or I’ll do the IJN color scheme because it’s unique.

Any help is greatly appreciated.

This site has some links to Japanese armor modeling. You might find some useful information there. https://www.tapatalk.com/groups/missinglynx/japanese-modelling-discussion-group-f449919/

Japanese tank manufacturing was well behind that of the Western nations. They were mainly a foot army and back in the 1940s and through the 1970s, “Made in Japan” meant that things were of poor quality.

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