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<p>[QUOTE=&quot;tomfiggy, post: 2403534, member: 51884&quot;]They were pressing 2 pieces of steel together. The master hub, and the working die. They could not get the impression deep enough with one squeeze. They had to take the die out and anneal it (heat it to a high temperature) to soften it. It was then returned to the hubbing press for the final squeeze. The second time around sometimes the die did not align perfectly and some features were doubled, thickened, or twisted. </p><p>&nbsp;Nowadays they have stronger presses and only need a single squeeze.[/QUOTE]</p><p><br /></p>

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