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While some rare-Earth materials have surpassed Alnico in popularity, it remains a key magnet material vital to certain industries, particularly those required to maintain DFARS compliance. At Dura Magnetics, we have USA-produced Alnico raw material available upon request. While the material itself poses a somewhat difficult and unique machining challenge, our team has the experience…
According to The New York Times, recent tariffs imposed on imported goods from China are meant to pressure the country to change its current trade practices that are negatively impacting American businesses. However, as the deadline approached for the final agreement in late September 2018, the US administration decided to remove nearly 300 product lines from the list due to specific objections by American companies. One of the product lines deleted from the list of tariffs was rare earth metals. Rare earth elements are currently used in myriad products worldwide including magnets, radar, high tech products, vehicles, and more….
Two recent discoveries – one related to the re-use of magnetic materials obtained from discarded computer components, the second a potential new trove of rare earth elements found in deep-sea mud near the coast of Japan, may reshape the magnetic marketplace…
As global demand for Cobalt and Neodymium continues to rise, magnet manufacturers and fabricators have to deal with a volatile pricing situation. Cobalt and Neodymium are key raw materials used in the manufacturing of rare earth magnets. As you might guess, Neodymium is an essential component of Neodymium magnets, while Cobalt is an essential component…
Regular readers of this blog likely already know that Dura Magnetics designs and manufactures comprehensive magnetic solutions for a wide variety of industries. As part of this, we are sometimes called on to perform design and manufacturing on projects tied to Aerospace and Defense contract work. Oftentimes, the magnets and magnetic assemblies used in these projects have technology export restrictions.
As an AS9100 certified magnet supplier, Dura Magnetics must continually ensure that our business and manufacturing practices properly follow the requirements set forth by the standard. With AS9100C being phased out and becoming fully replaced with the revised AS9100D standard on September 15, 2018, we have already taken the appropriate steps to ensure compliance with this standard before its final implementation date.
We are proud to announce that Dura Magnetics is now an AS9100D certified company.
The magnetic cup and base assembly is a simple, but very useful, magnetic assembly. The magnetic base allows for it to be attached to most ferrous surfaces, while the steel cup allows for several different attachment possibilities…
Alnico is a common and very commercially mature magnet alloy comprised of Aluminum, Nickel, Cobalt, Titanium and Iron. (There are also small amounts of various other elements including, but not limited to; copper, silicon, columbium, and zirconium.)
Alnico has a very high Residual Induction (Br). This characteristic of a magnet offers a sense of how large/strong of a magnetic field a particular magnet alloy can generate. (Typically the higher the Residual Induction the larger, more dense the magnetic field can be generated by a magnet.)
Many times, we are asked about the effects of thermal cycling on rare earth permanent magnets, but there is not a simple rule of thumb to offer. From a first order standpoint, thermal cycling will degrade the performance of rare earth Neodymium Iron Boron and Samarium Cobalt magnets. There are two primary mechanisms which drive this degradation. One occurs quickly, and the second occurs over a long period of time…
After several months of programming, testing, and polishing, we have now made our interactive Demagnetization / Permeance Coefficient (Pc) calculator available for use on our website. This powerful tool calculates the Permeance Coefficient for a given magnet based on the magnet grade, shape, dimensions, and operating temperature specified…