Posts material for Press
Posts material for Press
(OP)
Hello all, a question, I am building a 150 Ton press, it is going to be a 4 post design, I had selected 1084 3" Round Bar for the posts. My machinist wants to use 4140 or 4340 instead of 1084. The posts will be in tension to 150 Tons over a span of 44" threaded on both ends with 2 3/4" UNF thread and nuts. There is no shock loading, force is applied using an air over fluid pump.
Any thoughts or suggestions?
Thanks
WillPower Automation.
Any thoughts or suggestions?
Thanks
WillPower Automation.





RE: Posts material for Press
With 3" bar 4140 will be fine, but you need to look at the required strength to select a tempering temperature.
You will want it Q&T, don't use normalized. Q&T has better toughness.
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P.E. Metallurgy, Plymouth Tube
RE: Posts material for Press
RE: Posts material for Press
4140 or 4340 do just about everything better in your application.
je suis charlie
RE: Posts material for Press
http://media.machines4u.com.au/machinery/92/67492/...
That permits some details that allow Easily adjustable work length, strategic reinforcement around holes, etc..
Are you working with requirements for limited adjustability, portability or other restraints?
RE: Posts material for Press
You'll also want to use the same material for the mating nuts at each end of these posts.