Elroy can assure you that he fully understands modern manufacturing methods.
The comment I was questioning was this -
Elroy would venture to say those are powdered slugs being cold worked and yet to be sintered.
In the sintering process, no mechanical working or machining is carried out on the green compact outside the die or mould. If you were to do to a weakly cohesive green compact what is shown in the Hazet video, it would crumble.
You'll also typically find that "hot forging" and the other 100 year old methods you mention sure the hell aren't modern. They still work and in many applications are cost effective but they sure the hell aren't modern. They are also far from economical on high volume, critical strength parts.
I don't believe I mentioned hot forging ?
Elroy thinks you need to cut him some slack.
Your insistence on writing about yourself in the first person tends to leave me feeling somewhat irritable. In that respect I am at fault, as it's a harmless habit, and I apologise.
OK, maybe not ALL socket manufacturers use Powder Metallurgy but by and large, most of "high volume" builders do employ this method.
I'm going to need a citation for this, given that a number of manufacturers demonstrably do not, and that Snap-on holds relatively recent patents regarding its own cold forging process.
You'll find very few manufacturers that still 100% hot forge sockets. And as far a "cold broaching" a socket is concerned, forget it. According to Alloy Artifacts, that method became obsolete in the late 1920's. I tend to believe what they say as they have the research and hard examples to back up their statements.
I have no reason to assume Alloy Artefacts is in any way inaccurate, but if the reader conflates differing processes then misconceptions may arise.
Now to be completely fair, both of us need to be very specific in terminology. Elroy assumes that the cold work you're referring to, has to deal with the 3 second clip in the video. Honestly, it happened so fast Elroy couldn't really say what they were doing.
Cold working refers to any process altering the shape or size of a metal by plastic deformation below the recrystallisation point.
But I can assure you that hot forging and cold working sure the hell isn't "modern"
I'm not sure I see your point. If we wish to make a hammer head, it might well be heated in an induction furnace, rather than over an aspirated coal fire, and forged with a hydraulic hammer, rather than beaten with a smiths' hammer, but the process has merely kept up to date without being in any way modern.
As a further example of "modern" , cut all the cost corners as possible. Elroy tenders this old link. One of his favorites he might add:
http://www.garagejournal.com/forum/showthread.php?t=21527
And this picture in particular:
It's Elroy's humble opinion that BOTH of these sockets are manufactured by the Powder Metallurgy method. The most obvious method modification being the second die hit to form the detent pockets before sintering.
The pocket in the first picture was surely formed by a rotary tool

I haven't asserted that no manufacturer uses powder metallurgy in any circumstance.
Sure, forging is still employed by some manufacturers but your going to have a tough time convincing Elroy that it's the most economical high volume method. Not in the modern world. Some third world country like Brazil? Maybe.
Hot forging is certainly more appropriate to small production runs. Cold forging requires a high initial investment, but can be highly mechanised.
Want to talk about high volume?? Elroy bets that Danaher kicks the livin **** right out of Hazet on volume.
I've no doubt that's true, but the statements to which I originally replied were "This manufacturing technique is currently used by ALL manufactures" and "Have you ever seen a socket that said Forged in China, USA, Taiwan or Germany?? Nope." I wonder if the 'GearWrench guys' would be interested in commenting on their production process.
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For clarity - in using the term 'cold forging', I am referring to forming a socket over a die from a blank, using pressure, below the recrystallisation point.