Too high a magnetism in production machines interrupts their operation or has a negative effect on part quality.
For these purposes, Maurer Magnetic offers specially developed machines for demagnetisation. Alternatively, there is the option of having the demagnetisation process performed as a service at your site or on our premises.
Sintering, powder pressing, stamping machines
Magnetism causes sintering powder to adhere to dies and stamps, which causes thickness fluctuations on the green parts.
In mechanical lapping machines (lapping stones), the abraded material is drawn more heavily over the parts and causes grooves and scratches on the surface of the lapped parts.
When die bending and press brake bending sheet steel, the sheets to be bent may adhere magnetically to the edging and bending tools
This adhesion does not just occur due to magnetic stamps and dies, but also specifically on high quality bending machines themselves. The magnetism in the machine transfers over to the tool.
On large compressors or turbines, residual magnetism on the bearing points causes premature failures or imbalance, as well as incorrect concentricity measurements with the eddy current procedure (Bently-Nevada).
At high circumferential speeds, residual magnetism can cause arcs and burnout.
On assemblies, especially with rotating parts, the magnetism causes damage due to particles or eddy currents and causes the components to fail prematurely.