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<p>[QUOTE="Conder101, post: 2524705, member: 66"]Sorry for not responding sooner but the site wouldn't accept my reply post on this thread.</p><p><br /></p><p><br /></p><p>A few of the artists still do some hand modeling in clay and plaster.</p><p><br /></p><p>They may do the galvano reductions to hubs on the reducing machines sometimes but today most of the master hubs are cut directly from the computer images with the computer controlling the cutting head.</p><p><br /></p><p>The hubbing of the dies as shown at 3:10 is still done. Different equipment but the same procedure.</p><p><br /></p><p>At 6:40, they show blanking of the strip. As far as I know they still do this for everything except cents, but the strip is from outside suppliers.</p><p><br /></p><p>The annealing, and cleaning of the blanks is still done. they don't show the upsetting of the blanks but that is still done there.</p><p><br /></p><p>And of course the striking of the planchets. The film shows vertical striking, today's presses strike horizontally so the slow motion action of the feed fingers no longer occurs. (I don't know how they get the planchets to feed into the coining chamber on a horizontal press.)</p><p><br /></p><p>They do still inspect for errors but not by hand. Basically nost of it is done by riddlers that sort out and reject pieces that are off size.</p><p><br /></p><p> The still count and bag coins but today it is done into ballistic bags that hold literally around a ton of coins each.[/QUOTE]</p><p><br /></p>
[QUOTE="Conder101, post: 2524705, member: 66"]Sorry for not responding sooner but the site wouldn't accept my reply post on this thread. A few of the artists still do some hand modeling in clay and plaster. They may do the galvano reductions to hubs on the reducing machines sometimes but today most of the master hubs are cut directly from the computer images with the computer controlling the cutting head. The hubbing of the dies as shown at 3:10 is still done. Different equipment but the same procedure. At 6:40, they show blanking of the strip. As far as I know they still do this for everything except cents, but the strip is from outside suppliers. The annealing, and cleaning of the blanks is still done. they don't show the upsetting of the blanks but that is still done there. And of course the striking of the planchets. The film shows vertical striking, today's presses strike horizontally so the slow motion action of the feed fingers no longer occurs. (I don't know how they get the planchets to feed into the coining chamber on a horizontal press.) They do still inspect for errors but not by hand. Basically nost of it is done by riddlers that sort out and reject pieces that are off size. The still count and bag coins but today it is done into ballistic bags that hold literally around a ton of coins each.[/QUOTE]
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Any images of US Mint equipment?
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