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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
Posted to rec.crafts.metalworking
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Plug 3/4-10 threaded holes
I pulled the bolster plate on a 30 ton Bliss press to repair the
hold-down bolt holes. There are 21 inserts that are "T" shape with a minor dia. of 1.25" and the major dia. of the flange is 2", they are installed from the bottom and are drilled and threaded 5/8-11. I drilled them all out and threaded them 3/4-10. What happens is after only 20 years or so the 5/8-11 holes get boogered-up and stripped. sometimes the dies get changed 10 times a day. The 3/4-10 should last a LOT longer and hold better. I want to plug all the holes that aren't being used for that set-up so crap and little pieces of steel wire don't get in the hole and shorten the thread life and hamper easy set-ups. I looked on the web and I'm NOT spending $3-5 apiece. I will cut threaded rod and grind or mill a slot for a screwdriver if I can't find a better solution. The plugs have to be easy and quick to remove and install and keep the spoo out. Any suggestions? |
#2
Posted to rec.crafts.metalworking
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Plug 3/4-10 threaded holes
On 2012-11-27, Tom Gardner Mars@Tacks wrote:
I pulled the bolster plate on a 30 ton Bliss press to repair the hold-down bolt holes. There are 21 inserts that are "T" shape with a minor dia. of 1.25" and the major dia. of the flange is 2", they are installed from the bottom and are drilled and threaded 5/8-11. I drilled them all out and threaded them 3/4-10. What happens is after only 20 years or so the 5/8-11 holes get boogered-up and stripped. sometimes the dies get changed 10 times a day. The 3/4-10 should last a LOT longer and hold better. I want to plug all the holes that aren't being used for that set-up so crap and little pieces of steel wire don't get in the hole and shorten the thread life and hamper easy set-ups. I looked on the web and I'm NOT spending $3-5 apiece. I will cut threaded rod and grind or mill a slot for a screwdriver if I can't find a better solution. The plugs have to be easy and quick to remove and install and keep the spoo out. Any suggestions? I also would not pay that much. Make a vise fixture with a 3/4-10 hole, that you would hold in a vise. You use the hole you would screw in the rod for precision cutting off. i |
#3
Posted to rec.crafts.metalworking
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Plug 3/4-10 threaded holes
Tom Gardner wrote:
I pulled the bolster plate on a 30 ton Bliss press to repair the hold-down bolt holes. There are 21 inserts that are "T" shape with a minor dia. of 1.25" and the major dia. of the flange is 2", they are installed from the bottom and are drilled and threaded 5/8-11. I drilled them all out and threaded them 3/4-10. What happens is after only 20 years or so the 5/8-11 holes get boogered-up and stripped. sometimes the dies get changed 10 times a day. The 3/4-10 should last a LOT longer and hold better. I want to plug all the holes that aren't being used for that set-up so crap and little pieces of steel wire don't get in the hole and shorten the thread life and hamper easy set-ups. I looked on the web and I'm NOT spending $3-5 apiece. I will cut threaded rod and grind or mill a slot for a screwdriver if I can't find a better solution. The plugs have to be easy and quick to remove and install and keep the spoo out. Any suggestions? Take a look at http://www.caplugs.com/ They have plugs that will do that with ease. The high temp black silicone I looked up quick ran about $00.50 cents each in a 50 pack. If you want threaded they also have those and will make you just about anything. OH and they will send you samples for testing FREE!! Used to use them by the thousands in the paint shop. -- Steve W. |
#4
Posted to rec.crafts.metalworking
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Plug 3/4-10 threaded holes
On 11/26/2012 8:04 PM, Steve W. wrote:
Tom Gardner wrote: I pulled the bolster plate on a 30 ton Bliss press to repair the hold-down bolt holes. There are 21 inserts that are "T" shape with a minor dia. of 1.25" and the major dia. of the flange is 2", they are installed from the bottom and are drilled and threaded 5/8-11. I drilled them all out and threaded them 3/4-10. What happens is after only 20 years or so the 5/8-11 holes get boogered-up and stripped. sometimes the dies get changed 10 times a day. The 3/4-10 should last a LOT longer and hold better. I want to plug all the holes that aren't being used for that set-up so crap and little pieces of steel wire don't get in the hole and shorten the thread life and hamper easy set-ups. I looked on the web and I'm NOT spending $3-5 apiece. I will cut threaded rod and grind or mill a slot for a screwdriver if I can't find a better solution. The plugs have to be easy and quick to remove and install and keep the spoo out. Any suggestions? Take a look at http://www.caplugs.com/ They have plugs that will do that with ease. The high temp black silicone I looked up quick ran about $00.50 cents each in a 50 pack. If you want threaded they also have those and will make you just about anything. OH and they will send you samples for testing FREE!! Used to use them by the thousands in the paint shop. I forgot about them...and I BUY parts from them! Thanks! |
#5
Posted to rec.crafts.metalworking
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Plug 3/4-10 threaded holes
On 11/26/2012 7:54 PM, Ignoramus22527 wrote:
On 2012-11-27, Tom Gardner Mars@Tacks wrote: I pulled the bolster plate on a 30 ton Bliss press to repair the hold-down bolt holes. There are 21 inserts that are "T" shape with a minor dia. of 1.25" and the major dia. of the flange is 2", they are installed from the bottom and are drilled and threaded 5/8-11. I drilled them all out and threaded them 3/4-10. What happens is after only 20 years or so the 5/8-11 holes get boogered-up and stripped. sometimes the dies get changed 10 times a day. The 3/4-10 should last a LOT longer and hold better. I want to plug all the holes that aren't being used for that set-up so crap and little pieces of steel wire don't get in the hole and shorten the thread life and hamper easy set-ups. I looked on the web and I'm NOT spending $3-5 apiece. I will cut threaded rod and grind or mill a slot for a screwdriver if I can't find a better solution. The plugs have to be easy and quick to remove and install and keep the spoo out. Any suggestions? I also would not pay that much. Make a vise fixture with a 3/4-10 hole, that you would hold in a vise. You use the hole you would screw in the rod for precision cutting off. i Cool! How about a 5C collet block in the lathe? That shouldn't hurt the threads...but your way would be faster! |
#6
Posted to rec.crafts.metalworking
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Plug 3/4-10 threaded holes
On 2012-11-27, Tom Gardner Mars@Tacks wrote:
On 11/26/2012 7:54 PM, Ignoramus22527 wrote: On 2012-11-27, Tom Gardner Mars@Tacks wrote: I pulled the bolster plate on a 30 ton Bliss press to repair the hold-down bolt holes. There are 21 inserts that are "T" shape with a minor dia. of 1.25" and the major dia. of the flange is 2", they are installed from the bottom and are drilled and threaded 5/8-11. I drilled them all out and threaded them 3/4-10. What happens is after only 20 years or so the 5/8-11 holes get boogered-up and stripped. sometimes the dies get changed 10 times a day. The 3/4-10 should last a LOT longer and hold better. I want to plug all the holes that aren't being used for that set-up so crap and little pieces of steel wire don't get in the hole and shorten the thread life and hamper easy set-ups. I looked on the web and I'm NOT spending $3-5 apiece. I will cut threaded rod and grind or mill a slot for a screwdriver if I can't find a better solution. The plugs have to be easy and quick to remove and install and keep the spoo out. Any suggestions? I also would not pay that much. Make a vise fixture with a 3/4-10 hole, that you would hold in a vise. You use the hole you would screw in the rod for precision cutting off. i Cool! How about a 5C collet block in the lathe? That shouldn't hurt the threads...but your way would be faster! does not give you cnosistent depth |
#7
Posted to rec.crafts.metalworking
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Plug 3/4-10 threaded holes
On Mon, 26 Nov 2012 19:22:22 -0500, Tom Gardner Mars@Tacks wrote:
I pulled the bolster plate on a 30 ton Bliss press to repair the hold-down bolt holes. There are 21 inserts that are "T" shape with a minor dia. of 1.25" and the major dia. of the flange is 2", they are installed from the bottom and are drilled and threaded 5/8-11. I drilled them all out and threaded them 3/4-10. What happens is after only 20 years or so the 5/8-11 holes get boogered-up and stripped. sometimes the dies get changed 10 times a day. The 3/4-10 should last a LOT longer and hold better. I want to plug all the holes that aren't being used for that set-up so crap and little pieces of steel wire don't get in the hole and shorten the thread life and hamper easy set-ups. I looked on the web and I'm NOT spending $3-5 apiece. I will cut threaded rod and grind or mill a slot for a screwdriver if I can't find a better solution. The plugs have to be easy and quick to remove and install and keep the spoo out. Any suggestions? Mcmaster carr has 3/4-10 x 3/4L set screws for $0.98 --- Gerry :-)} London,Canada |
#8
Posted to rec.crafts.metalworking
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Plug 3/4-10 threaded holes
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#9
Posted to rec.crafts.metalworking
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Plug 3/4-10 threaded holes
"Tom Gardner" Mars@Tacks wrote in message
... I looked on the web and I'm NOT spending $3-5 apiece. I will cut threaded rod and grind or mill a slot for a screwdriver if I can't find a better solution. The plugs have to be easy and quick to remove and install and keep the spoo out. Any suggestions? I make male and female thread-holding plugs to fit in my 5C collets from 1" drill rod and use a screw-in collet stop to set the length, close enough for most applications. |
#10
Posted to rec.crafts.metalworking
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Plug 3/4-10 threaded holes
On Mon, 26 Nov 2012 19:22:22 -0500, Tom Gardner Mars@Tacks wrote:
I pulled the bolster plate on a 30 ton Bliss press to repair the hold-down bolt holes. There are 21 inserts that are "T" shape with a minor dia. of 1.25" and the major dia. of the flange is 2", they are installed from the bottom and are drilled and threaded 5/8-11. I drilled them all out and threaded them 3/4-10. What happens is after only 20 years or so the 5/8-11 holes get boogered-up and stripped. sometimes the dies get changed 10 times a day. The 3/4-10 should last a LOT longer and hold better. I want to plug all the holes that aren't being used for that set-up so crap and little pieces of steel wire don't get in the hole and shorten the thread life and hamper easy set-ups. I looked on the web and I'm NOT spending $3-5 apiece. I will cut threaded rod and grind or mill a slot for a screwdriver if I can't find a better solution. The plugs have to be easy and quick to remove and install and keep the spoo out. Any suggestions? Threaded rod sounds like your best option. Gunner The methodology of the left has always been: 1. Lie 2. Repeat the lie as many times as possible 3. Have as many people repeat the lie as often as possible 4. Eventually, the uninformed believe the lie 5. The lie will then be made into some form oflaw 6. Then everyone must conform to the lie |
#11
Posted to rec.crafts.metalworking
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Plug 3/4-10 threaded holes
On 11/26/2012 6:22 PM, Tom Gardner wrote:
I pulled the bolster plate on a 30 ton Bliss press to repair the hold-down bolt holes. There are 21 inserts that are "T" shape with a minor dia. of 1.25" and the major dia. of the flange is 2", they are installed from the bottom and are drilled and threaded 5/8-11. I drilled them all out and threaded them 3/4-10. What happens is after only 20 years or so the 5/8-11 holes get boogered-up and stripped. sometimes the dies get changed 10 times a day. The 3/4-10 should last a LOT longer and hold better. I want to plug all the holes that aren't being used for that set-up so crap and little pieces of steel wire don't get in the hole and shorten the thread life and hamper easy set-ups. I looked on the web and I'm NOT spending $3-5 apiece. I will cut threaded rod and grind or mill a slot for a screwdriver if I can't find a better solution. The plugs have to be easy and quick to remove and install and keep the spoo out. Any suggestions? Round plastic. Delrin. Nylon. Santana toilet partition. -- ___________________________________ Keep the whole world singing . . . Dan G remove the seven |
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