Mumetal Metalwork: Bending 0.004" Permalloy-80 for 6" Radius

  • Context: Graduate 
  • Thread starter Thread starter Ravaner
  • Start date Start date
Click For Summary

Discussion Overview

The discussion revolves around the bending of a thin sheet of Permalloy-80 for the purpose of creating a magnetic shield, specifically addressing concerns about potential damage to the material's magnetic properties due to the bending process.

Discussion Character

  • Exploratory, Technical explanation

Main Points Raised

  • One participant inquires whether bending a 0.004" sheet of Permalloy-80 to a 6" radius will affect its magnetic properties.
  • Another participant suggests that bending the sheet gently should not alter the material's properties.
  • A third participant shares their experience using mumetal for enclosures with different radii, indicating that the material performed well after bending.

Areas of Agreement / Disagreement

There is no clear consensus on the impact of bending on the magnetic properties of Permalloy-80, though some participants express confidence that it will not be adversely affected.

Contextual Notes

The discussion does not address specific limitations or assumptions regarding the bending process or the properties of Permalloy-80.

Who May Find This Useful

Individuals interested in materials science, magnetic shielding applications, or those working with Permalloy-80 and similar materials may find this discussion relevant.

Ravaner
Messages
134
Reaction score
3
Hello ! I'm going to use thin ( 0.004" ) sheet of Permalloy-80 to realize a magnetic shield ( against european 50 Hz mains ). I have to bend this sheet to give it a 6" radius curvature. I would like to know if this treatment will not dammage and annihilate the magnetic properties of this material.
 
Physics news on Phys.org
Bending a thin sheet so gently should not change the material's properties.
 
I have used mumetal to make 2 enclosures one with a 14cm radius and one about 8. The material seems to be performing well
 
Very useful replies. many thanks.