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Electromagnet contact area vs. force

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cativo

Aerospace
Aug 11, 2010
11
I have a solenoid electromagnet whose cylindrical steel core protrudes out and has a chamfer at the end. When the core end contacts the mating part, the chamfer reduces the actual contact area by 1/2 (compared to the core diameter). I know pull force is dependent on core diameter, but is it dependent on the diameter of the contact area or of the core diameter within the solenoid? If I remove the chamfer (so that the contact diameter is the same as the core diameter, doubling the contact area) will I nearly double my pull force?
 
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The units got me again! I was thinking 1.6kG.

So sorry. Thank you so much for all you help (and patience!)
 
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