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TechTalk Blog by Dura Magnetics

Samarium Cobalt (SmCo) Magnet Pull Force Calculation Tool Now Available

As part of our ongoing effort to provide magnet-related resources that may be useful to those in the field, we have added to our collection of magnetic property calculation tools. This particular resource is a magnetic force calculation utility that aids in estimating the attractive (pull) force of Samarium Cobalt magnets.

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Magnetic Saturation: Understanding Practical Limitations to How Much Induced Magnetism Can Be Achieved in a Workpiece

There are limits to how much induced magnetism is possible in different materials and similar workpieces of varying size, shape and configuration. The principle of magnetic saturation observes that there is a point of diminishing returns at which attempting more externally applied magnetic field (H) will give rise to no additional magnetic induction (B). Increasing the thickness of a workpiece is generally beneficial. However, these changes will likely impact cost, mass, and possibly ease of manufacturing. It is therefore beneficial to understand and control for the magnetic saturation of materials during the design stage…

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How to QC Magnet Strength

How do you QC a permanent magnet, magnetic assembly, or a piece of equipment utilizing magnets? There are several methods which will pass a Gage R & R, but they are generally unknown to people outside of the magnet industry…

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How to Safely Handle Magnets

Magnets are produced in a wide array of sizes, shapes, and strengths, but there are similarities between all magnetic materials.  They are all relatively brittle which when coupled with their magnetic strength present a number of issues.  They also invoke curiosity, and who hasn’t heard the adage of what curiosity did to the cat.  Handling […]

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Magnetic Permeability:  Why Are Some Materials Attracted By A Magnet And Others Are Not?

Two magnets attract to each other because their fields interact.  Usually materials that are not magnets do not have a net external field, and obviously, they do not attract to things; however, some metal alloys can have a net field created by applying an external field.  This induced field is only present when the external […]

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Essential Advice For Choosing A Magnet Vendor

So the right type of magnet has been designed or selected for your application and now you’ve begun the task of finding a company that can supply the part, right? Well, it’s not always that easy as magnets are unlike other commodities and, in fact, they should not be treated as commodities, at all. At […]

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Did You Know?

Without proper design considerations, your magnet will fail. High temperatures, other magnetic fields and aggressive environments can cause magnets to fail.

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