Question: how to do mpi inspection?
Answer: Introduction to Visible Magnetic Particle Inspection. [00:03] Check that that part is ferrous, then clean the part. [00:43] Position the yoke or prods on the part or test area. [00:59] Switch on the magenetizing current. Apply the magnetic particles Switch off the current. [01:39] Demagnetize the part or test area. [02:04]