Difference to be considered while designing Forming block for 2024-T3
Difference to be considered while designing Forming block for 2024-T3
(OP)
Hi,
We have form blocks for 2024-0 condition material, now i need to design form block for 2024-t3 063"thk material. Please help me on points to be considered.Thanks!
We have form blocks for 2024-0 condition material, now i need to design form block for 2024-t3 063"thk material. Please help me on points to be considered.Thanks!
RE: Difference to be considered while designing Forming block for 2024-T3
You must be bending a tight radius ? Maybe a bigger problem is the resulting thickness (around the bend) ??
another day in paradise, or is paradise one day closer ?
RE: Difference to be considered while designing Forming block for 2024-T3
i am wondering if i need to consider spring back on this part or no? Thanks
RE: Difference to be considered while designing Forming block for 2024-T3
"the bend radius is .33" i just need a joggle over the 20" sheet." … I'm surprised this needs to be done in O condition ?
RE: Difference to be considered while designing Forming block for 2024-T3
RE: Difference to be considered while designing Forming block for 2024-T3
another day in paradise, or is paradise one day closer ?
RE: Difference to be considered while designing Forming block for 2024-T3
B.E.
You are judged not by what you know, but by what you can do.
RE: Difference to be considered while designing Forming block for 2024-T3
The form block for rubber-press hydroforming in sheet-metal 2024-T3 temper will have to include significant allowance for 'spring-back'**... which means a 90-Deg finished bend-angle will need to be bent to a substantially higher angle... unlike forming in the 'w' temper. Incorporating one-or-more joggles, at the same time, might not be feasible or practical on one form-block. [**I don't have spring-back tables handy, this PM]
The only-way I see this 'working' is a different approach... finger-break-form the part axially... then joggle-form transverse, afterwards... but even this seems overly complex/sketchy.
I am deeply curious as to 'why' You aren't forming in the O-> SHT-> W-> form-> age-to -T42 sequence?
NOTE.
A 'few tricks-of-the-trade' about heavy forming or stretch-forming in -T3 temper...
Ensure sheet metal is clean and free of surface scratches/gouges/etc
Deburr/radius all edges to prevent forming cracks.
Use aqueous forming lubricant [soap?] to minimize drag.
Immediately after forming, age HT to -T62 [I don't think -T81 applies after heavy forming] for stress relief and 'stability'.
Possibility of the appearance of 'Ludder's lines' is very real and may/may-not present a problem.
Regards, Wil Taylor
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