restoration question

[iaflyboy]

Looking the drawings for a restoration project I might do and I'm stumped. It shows Alclad sheet 24ST with a thickness of .064. Only thickness I see is .063 and .071. So would I have to get the .071 and plane it down to .064?

[Cubs2jets]

Wet or dry sandpaper...

Sand the front clockwise and the back counter clockwise to keep the stresses in the sheet even...

C2j

[John Dupre]

Doesn't it lose all the clad in alclad at that point?

[Cvairwerks]

Unless the original part was milled from thicker stock, .063" is fine. I'd have to do some digging to find the exact limits, but if I remember correctly, .063 is the nominal thickness and it can vary several thousandths. Also, with the current specification system, we have a little wider composition allowable than the old system, but the final product strength/yield limits are higher. So for sheet metal work, sub 2024T3 and if you have to do some severe forming, use 2024T0 and heat treat to T4.

[fiftycal]

yes .63 is fine

sanding it?

[hang the expense]

Wet or dry sandpaper...

Sand the front clockwise and the back counter clockwise to keep the stresses in the sheet even...

C2j

That's for Mondays,wednesdays and Fridays.Reverse the process for Tuesdays and Thursdays.

[K5DH]

Do you have to sand in the opposite direction in the Southern Hemisphere?

[BAJ]

Do you have to sand in the opposite direction in the Southern Hemisphere?

Yes...of course and let me say its actually easier because most people are right handed !!