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Inspection Testing in Foundries topics include: Inspection and testing, inspection procedures, visual and dimensional inspection, mechanical properties testing, destructive and non destructive testing.
Foundries use a variety of inspection and testing methods:
Visual inspection: Uses the human eye to identify surface defects, such as cracks, tears, misruns, molding flaws, and cold shuts. Liquid dye penetrant inspection (LPI): Uses a colored dye in an oil solution to find tiny cracks, pores, or other surface imperfections in metal castings. Magnetic particle inspection (MPI): Uses fine iron filings or particles to detect surface and near-surface flaws in investment castings made of ferromagnetic metals. Radiographic inspection: Uses X-rays or gamma energy to pass ionizing radiation through a casting to reveal internal discontinuities on a film medium. Ultrasonic inspection: Uses high frequency sound energy to detect the presence of inherited discontinuities. Eddy current inspection: Can detect minor cracks and defects near the surface. Tensile strength test: Measures the casting's potential to resist tension and provides insights into its mechanical characteristics.
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