Hi all
I am truly sorry if i posted this in the wrogn category or even on the wrong forum. But truly hoping someone can help me.
I am stapming golf club wedges, and trying to build a magentic bench block anvil. I see them online for over $300 plus, but figure this is a way to build one.
Here is the anvil block that is 6" x 4" x 1/2" - Anvil Block
Here is the elctromagnet i like to use which has a 130lb pulling power. Electromagnet or even was thinking of this 8T Magnetic Holder Bed On/Off Switch Holding Power，Magnetic Base 176lbs

I am thinking of building a small stand to in case the magnet, run my power supply, connect a switch and make sure the magnet sit flush on the bottom of the anvil block. I am hoping that if i turn on the magnet it will the top of the anvil will be magnetic to hold the face of the golf club wedge so i can stamp the club, here is a link of whaty i am trying to make. Magnetic Wedge Stamping Block

Please advise your opinion or suggestions

 

Welcome to AAC! This is the right forum for an unusual challenge like this..
The first question is how much current does the magnetic device require, and is your power supply able to provide that current for the required time??
As is typical of amazon, neither the current requirement nor the on time are even mentioned. Those are both important.

 

Hi, thank you for having me. I honestly couldnt think of another place to post this question.
The unit runs at 12V 300mA from the manufacture they receommend a 12V 3A power supply. the power supply I currently have is 12V 5A Max. As time on that I cannot answer. As I am aware how the unit works on doors it is energize with power on until the power is interuppted via either key card access or switch to demagentize the mag lock. Do you think a 350lb pulling force would suffice to magnetize a 1/2 steel plate to hold the face on the wedge while i am stamping it? The Magentic Wedge block states that it contains 7 neodymium magnets x 22 LBS of pull force each whcih in turn equals 154lbs of pulling force but these 7 magnets are mounted on top.

 

That 350pounds pulling force is for holding that matching steel piece flat against the magnet. Holding the head of a golf club will be quite a bit less, but still quite a few pounds. My concern about using that $19.95 electomagnet door lock now is about the mechanical durability of it. how many hammer hits on the golf club head before something breaks?? In the door lock application it never sees an impact. So it might last, or it might not last. It will probably hold the club head quite well.

 

All You need are few formulas:
1) F=B^2*A/(2μ0) {SI system units}
2) n*I=B(Hcore/μ0μrel+Hair/μ0) thus in the case of steel core:
n*I/B=(Hcore/4400+Hair)/12,6*E-7
Example: 1000 turns with 100 mA on Hcore=0.1 and Hair=0.01 with cross section 0.01 gives:
B=0.01 T (what is damn small for steel permitting 1.0....1.5 T. Now F=0.01*0.01*0.01/2/12.6E-7=0.39 N=0.039 kg. So.... first try to minimize the air gap, it is detrimental. If succeed to cut it down to zero, then each cm2 of steel section gives 10 kg at 1 T.

 

If I understand you correctly, you want to attach that magnet to the bottom of the anvil block and then place the club head on top to hold it securely.

If that is correct, it will not work at all.

The holding magnet requires that both poles of the magnet are in contact with the object held. This completes the magnetic circuit. But a completed magnetic circuit keeps field confined within itself. There will be little or no pull by the anvil block on the club head. It would have to cross the two poles of the magnet itself to feel a strong pull. The anvil block effectively blocks the pull of the magnet.

You might get something to work by having two anvil blocks with a gap between them, one touching each pole of the magnet. But they would have to be held separate by non magnetic material, such as aluminum.

 

My impression is that the electromagnet assembly would serve as the anvil and that was the reason for my response. Certainly an adequate anvil arrangement can be created,but not without both skills and resources not present.

 

My impression is that the electromagnet assembly would serve as the anvil and that was the reason for my response. Certainly an adequate anvil arrangement can be created,but not without both skills and resources not present

That is not what he said, see here from #1

make sure the magnet sit flush on the bottom of the anvil block. I am hoping that if i turn on the magnet it will the top of the anvil will be magnetic to hold the face of the golf club wedge

 

OK, that is probably not going to work very well. Possibly use a brass top with a steel insert??