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Offline bryanwoodcTopic starter
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« on: March 22, 2013, 10:38:25 am »
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hi all,i cant find this answer anywhere,
will a 6 tonne hydroulic press punch a 12mm hole in 2mm stainless steel sheet?
ive looked at all the tonnage charts and cant find it,there are some great minds on here someone will call me thick and know the answer.thanks.

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Offline GoldDigger1950
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« Reply #1 on: March 22, 2013, 11:09:59 am »
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The press will do it but the die you use is critical. That much pressure on a stainless plate can shatter some dies. Choose wisely.

Since it's obvious that the steel is portable, why nut put it on a drill press instead?

Posted on: March 22, 2013, 07:04:01 PM
In giving this some more thought, even a milling table would be safer than trying to punch a hole that size. If you shatter the die, the shards will be traveling nearly as fast as a bullet.

Posted on: March 22, 2013, 07:06:05 PM
On this page you will find muzzle pressures for a variety of rifles. These are in pound per square inch. Divide by 2000 to get tons per square inch. That will be close to the pressure for a speeding bullet.

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http://www.lasc.us/SAAMIMaxPressure.htm


Assume your 6 tons is spread over an inch and you will be applying a steady 12,000 pounds per square inch.

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Offline bryanwoodcTopic starter
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« Reply #2 on: March 22, 2013, 11:14:42 am »
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thanks tried drilling its just killing the drills even at slow speed.ive got the punch and die.just will 6 tonne be enough.

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Offline GoldDigger1950
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« Reply #3 on: March 22, 2013, 11:16:13 am »
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The pressure sounds fine. Can you shield your body with another piece of steel during the punch? You know what I mean about dies shattering.

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« Reply #4 on: March 22, 2013, 11:20:46 am »
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which will i worry about the punch or the die?i can set the die into a steel bed.

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Offline GoldDigger1950
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« Reply #5 on: March 22, 2013, 11:31:29 am »
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Both can shatter so just be careful. You only get one "you" to play around with. At that pressure, you probably won't get any warning.

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« Reply #6 on: March 22, 2013, 11:34:38 am »
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thanks for the advice.

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« Reply #7 on: March 22, 2013, 11:51:08 am »
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You may want to try a Step Drill.

I've done stuff like that more then a Few times and it worked.

If the Bit is Getting Hot, A few drops of Oil will Stop that.

When the Oil Starts to Smoke, Let it Cool.

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« Reply #8 on: March 22, 2013, 12:19:45 pm »
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Quote:Posted by homefire
If the Bit is Getting Hot, A few drops of Oil will Stop that.

Kerosene is a better cutting agent

I would have suggested a chassis punch set rather than a press and die.

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« Reply #9 on: March 22, 2013, 12:43:24 pm »
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I've used them too.   Yep,   They work quite Well.

And nothing goes flying around.

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