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Can I Solder Or Weld Neodymium Magnets?

Can I Solder Or Weld Neodymium Magnets?

While it is possible to modify certain magnets by cutting, drilling, soldering or welding them, doing it correctly is extremely challenging.

Reason being, many magnets - particularly neodymium iron boron (NdFeB) magnets - are sensitive to heat. Their magnetic properties become significantly reduced at an inflection temperature known as Curie temperature and their magnetic properties disappear altogether at this threshold temperature.
Neodymium magnets are brittle

Neodymium magnets are extremely powerful yet also fragile and do not respond well to drilling or cutting operations. Machining can produce heat that could demagnetize or ignite them without careful management.

Neodymium magnets are vulnerable to corrosion, and as such should be protected with coatings or platings to keep corrosion at bay. Without such treatments, their surface layer could peel away or crumble into powder, leading to possible spall off or crumble off incidents.

These magnets can also be highly flammable, so it is best to store them in an environment free from humidity or condensation in order to avoid potential rust and corrosion damage.

Neodymium magnets are constructed primarily of an alloy consisting of neodymium, iron and boron and are available in various strengths to meet different requirements. They can also be customized according to customer requests for optimal results.
They don’t react well to drilling or cutting

Neodymium, a rare earth element (REE), can be found in many high-tech products. This element plays an essential role in electric cars, wind turbines, solar panels and more devices.

Though powerful magnets can be handy, if not handled with care they could cause severe damage. Since they're 10 times stronger than ordinary magnets it is important that when using one you keep at least 10 cm between any objects which might be affected and the magnet itself.

Use a drill bit designed for use with neodymium magnets, avoid placing your hands between magnets, and store electronic items without magnetic storage as far away from magnets as possible to ensure both your own safety and avoid costly repairs. Following these safety tips can ensure both personal protection and cost savings in repairs.
They don’t react well to hot temperatures

Neodymium magnets do not take well to hot temperatures, which could compromise their magnetic strength. Depending on their size and shape, neodymium magnets could lose anywhere between 0.08-0.12% of their magnetic strength with every degree Celsius rise in temperature.

Neodymium magnets lose their adhesive force at temperatures above 80 deg C and should therefore never be placed in environments or exposed to extreme temperatures exceeding this limit. VH/AH graded magnets may work in temperatures as high as 230 deg C; however, careful consideration must be taken in their selection.

Neodymium magnets (NdFeB) are powerful permanent magnets composed of iron, boron, and neodymium that are widely used in electronics to provide a strong magnetic field without inducing current. Mobile phones, microphones and loudspeakers commonly utilize these magnetic gems due to their ability to withstand high temperatures; medical practitioners also make use of them during diagnosis or surgery procedures.
They don’t react well to soldering or welding

Neodymium magnets are manufactured by combining ferromagnetic materials such as iron, nickel or cobalt with rare earth elements to produce magnets characterized by microscopic magnetic domains containing north poles.

Magnetizing ferromagnetic materials requires aligning its domains and creating a net magnetic field, similar to how compass needles become magnetized.

Neodymium magnets find many uses in electronics. Hard disk drives rely on magnetically charged cells within their tracks and sectors to store data; loudspeakers, microphones and headphones use current-carrying coils with permanent magnets to convert electricity into mechanical energy that alters air pressure to create soundwaves for audibility.

Magnets have also found applications in medical devices to aid with diagnosis and treatment for conditions like arthritis or wound healing, though their full impact remains unexplored.