Talk:Forging

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Isothermal Forging

Note that i merged a new article Isothermal forging into this article. It could use some sources however. Insert CleverPhrase Here 00:26, 17 March 2017 (UTC)[reply]

And just why would you do such a thing? New articles aren't some sort of 'contamination', to be cleaned away as fast as possible. Andy Dingley (talk) 01:25, 17 March 2017 (UTC)[reply]

Materials and properties

Materials only talk of steel and aluminium. What other materials are forged : titanium alloys ? - Rod57 (talk) 17:46, 30 November 2019 (UTC)[reply]

Article mentions ductility a few times but does not mention malleability or discuss the material properties needed for different types of forging. - Rod57 (talk) 17:46, 30 November 2019 (UTC)[reply]

Other materials aren't, by and large. Steel and aluminium alloys are amenable to forging (meaning deformation under heat), others either aren't, or are esoteric.

Cuprous alloys, such as bronze, have historically been forged. But they're also much easier to cast from a melt. Forging them hot is difficult, as cuprous alloys tend to be hot short and so will crumble rather than bending smoothly.

In aerospace, of course, everything is different. So yes, many other metals are forged. But these metals tend to be esoteric to start with: nimonic, or light alloys like aluminium, based on magnesium, lithium or scandium alloys. Some, like magnesium, can forge fairly well, but they're also more easily manufactured by methods such as casting or extrusion. They may even need to be forged under an inert gas blanket, as they're too reactive. Some metals, like titanium, are forged (fairly often) but it's a difficult process, so only used when the resultant properties make it worthwhile. In particular it embrittles seriously by the absorbtion of hydrogen when hot, so the atmosphere needs control. The hemispheres for the Alvin submersible were aa particularly impressive piece of such forging.[1]

Nuclear materials, such as uranium and plutonium aren't often worked, but when they are, forging is often the process of choice.

Many difficult metals though are nowadays sintered rather than forged. Andy Dingley (talk) 20:59, 30 November 2019 (UTC)[reply]

Some of the info on capabilities etc. of industrial forging processes seem too specific

Some info like the number of parts that can be made per minute & the temp of parts that come out of hot forging procc was are stated as absolutes. I suspect temps vary by material etc., and number of parts per time would increase as technology improves, just as two examples. I wonder if the details were taken from a particular manufacturer's site? Could use a look by someone with knowledge. Fitzhugh (talk) 21:23, 25 December 2019 (UTC)[reply]

Do the lists of "big presses" need citations? (They do)

Currently, there are two lists of "big forges" by ingot size (first list) and by force (second), and they don't seem to have citations. Weber in the US appears twice on the second list, which feels plausible. No German companies appear on either list, which surprises me but may be accurate.

The lists are definitely interesting, but is that actually public information? These companies compete with one another, and I'm just not sure that current or true information is published in anything that is not advertising or hiring material. Covidios (talk) 03:53, 25 May 2020 (UTC)[reply]

Forging

Flatter tool information 2409:4071:4E8D:E57F:AA1:CA34:DEDD:469 (talk) 15:23, 16 March 2022 (UTC)[reply]

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