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<p>[QUOTE=&quot;usmc60, post: 2326274, member: 76739&quot;]Hey Dave, in this quota I guess you misunderstood me as an engineer at least in my field extreme pressure causes heat the same in Coin printing operations, think about it Dave, that the press is moving an extreme high speed and exerting a lot of pressure you have a combination of both, as a result you have metal fatigue and failure.&nbsp; Or take our governments spy plane the blackbird on the ground that bird leaks like a sieve, but at 80,000 feet that&#039;s a lot of pressure then you add going over 1000 miles an hour there your&nbsp; friction thus causing heat causing the mettle of the plane to expand&nbsp; sealing the leaks and Dave that&#039;s no BS that&#039;s a fact jack.</p><p>And as a teacher you should know pressure causes heat causes mental fatigue.</p><p>Dave put your hands together palm to palm and a little pressure start rubbing and you&#039;ll feel the heat buildup between both your palms and if you do it long enough&nbsp; you&#039;ll get blisters from the heat buildup and pressure.&nbsp; I do not want to get too high tech with you, I totally agree with you Dave heat does not mean pressure and so I do not upset you pressure and friction equals heat equal some kind of failure,</p><p>And Dave I look back at what I quoted and my quoted was right so what&#039;s the BS?</p><p>And Dave if you do a little more investigating about the press machine you will find that they kinda like to try and control the heat of the die to an optimal working conditions so the dies will last as long as possible, and my understanding of the press machine too much speed too much heat slow it down less heat.&nbsp; And Dave I&#039;ve been teaching people for well over 30 years and understand completely about miss information so you&#039;re preaching to the wrong man brother.[/QUOTE]</p><p><br /></p>

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