TechTalk: Industry News

Get all the latest magnetic news, resources and success stories right in your inbox:

Filter by category:

OR

Search for keywords:


Halbach Arrays: Halbach Array Applications, Function and Materials Explained

There is a lot of information about “Halbach Arrays” available on the Internet, yet much of it is re-posted copy with fragmented explanations. This first article in a four-part series on Halbach Arrays will attempt to cohesively demystify the Halbach Array, explain how it works, and cover the advantages and disadvantages of using them.

Read more

AS9100D Certification Gives Dura Magnetics Deeper Entry Into the Aerospace Industry

In an ongoing effort to maintain leadership as a magnetic solution provider, we have earned our certification in AS9100D Aerospace Management Systems. This certification takes ISO9001 to the next level – requiring an even greater degree of quality and rigor to receive. Our certificate can be found here: AS9100D Certificate.

Read more

Does Temperature Affect the Strength of a Magnet?

The maximum operating temperature of a magnet is an important property, but it is simply the point beyond which the magnet will experience an irreversible loss in net magnetization. In actuality, a magnet will lose net magnetization as soon as it starts to heat up. This loss is called “reversible” as it is recovered as soon as the magnet cools back down. While avoiding irreversible loss may seem to be the primary concern, even reversible loss can cause a negative impact on a magnet’s performance because while the magnet does not permanently demagnetize, it may not generate enough field for a given application at a particular operating temperature.

Read more

How Air Gaps, Workpiece Conditions, and Operating Temperature Affect Magnetic Pull Force

In sizing and selecting magnets and custom magnetic assemblies, it is important to ask a number of questions about the working area in which the magnet will operate. The answers to these questions help deliver a higher level of success in providing a magnet that meets the fit, form, and function of the application. Three areas of concern that we’ll address are: air gap relative to holding force, workpiece conditions, and operating temperature. All of these represent important conditions for the magnet’s ultimate performance…

Read more

Magnetic Component Design: Magnet Feature Optimization for Manufacturability Improvements

Designers and engineers that need to incorporate a magnet into their application are not often aware of the mechanical characteristics of magnetic alloys. Features that are commonly specified and produced on materials such as mild steel, stainless steel, aluminum, or brass can be very difficult to produce on a magnet or incorporated into magnet assemblies…

Read more

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.

Read more

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…

Read more

HHow to Qc (Quality Control) 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…

Read more

Magnet Safety 101: 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 […]

Read more

What Is Magnetic Permeability and Why Are Some Materials Magnetic When Others Are Not?

A Closer Look at Magnetic Permeability and Why Some Types of Materials Are More Attracted by Magnets Than Others 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 […]

Read more