These standards will typically contain EDM notches of varying degree and severity to provide an indication of the effectiveness of the dry or wet magnetic particle examination process.
Notches are normally machined in high-stress areas that are likely to exhibit cracking.
Notches are filled flush with a non-conducting material, such as epoxy, to prevent mechanical holding of the indicating medium.
These special purpose standards can be made from a wide array of parts including hooks, shackles, pins, eyebolts, rings, etc. PH Tool can supply the parts, or they can be customer or government supplied. Please contact us for more information or to request a quote.