No they Wouldn't.
The Navy Lost interest in 1943, when they said it would be Difficult for America to make such a thing.
From what i've read, it was the Army that lost interest.
The Navy's "F-Go" project continued
That was only one sub, others arrived and they used that materialAs for material, they had difficulty Getting material, and the German Sub that was suppose to bring Uranium was captured by the US.
They had two programs. One was stopped, the other continued; using centrifuges for the enrichment process. The centrifuges were far ahead of their time and very advanced. The "F-Go" project succeeded in uranium enrichment.Japan's attempts to make Uranium-235 Failed, and they Didn't have Hard Water.
No, they had the material.Over all, the Japanese lacked Material, .
They started quite early actually.started too late,
That's strongly debatable as there's evidence that they actually did conduct a successful test. I haven't in this ATL considered that as happening as early as it did IOTL (late August 1945), because I believe it would happen later in this ATL without the pressure of war against the USA and the desperation of losing being so close at hand for such a long period of time.and the Evidence of their supposed "Working Nuclear Bomb" is Ridiculous at best
I've studied the subject a lot over the years. It does however go offtopic to get into that in detail (it's very time consuming), because I have repeatedly said - I'm asking about what would happen in the USA joins the war in Europe in 1943.