Quality Testing & Assurance
Rigorous testing ensures safe, reliable and consistent performance.
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Quality Testing - Properties, Methods, and Equipment
| Icon | Property | Test Method(s) | Equipment |
|---|---|---|---|
| Dimensions & Tolerances | Direct measurement, coordinate measurement, gauge inspection | Vernier caliper, micrometer, height gauge, plug/ring gauges, Coordinate Measuring Machine (CMM) | |
| Geometrical Accuracy (roundness, flatness, parallelism) | Geometrical dimensioning & tolerancing (GD&T) checks | CMM, roundness tester, surface plate with dial indicators | |
| Surface Roughness | Contact profilometry, optical interferometry | Surface roughness tester (profilometer), optical surface scanner | |
| Tensile Strength / Yield Strength / Elongation | Tensile testing according to ISO 6892, ASTM E8 | Universal Testing Machine (UTM) with extensometer | |
| Hardness | Rockwell (ASTM E18), Brinell (ASTM E10), Vickers microhardness tester | Rockwell hardness tester, Brinell hardness tester, Vickers microhardness tester | |
| Impact Resistance | Charpy V-notch (ISO 148), Izod impact (ASTM D256) | Charpy impact tester, Izod impact tester | |
| Fatigue Strength | Rotating bending fatigue, axial fatigue tests | Fatigue testing machine | |
| Material Identification | Positive Material Identification (PMI) | X-Ray Fluorescence (XRF) analyzer, Optical Emission Spectrometer (OES) | |
| Chemical Composition | Spectroscopy (OES, XRF, ICP), wet chemistry | OES spectrometer, XRF analyzer, ICP-OES system | |
| Microstructure Analysis | Metallography, grain size measurement | Metallurgical microscope, sample polishing & etching equipment | |
| Coating Thickness | Magnetic induction (ferrous), eddy current (non-ferrous) | Coating thickness gauge | |
| Density | Archimedes' principle, pycnometer method | Density balance, gas pycnometer | |
| Thermal Expansion | Dilatometry | Dilatometer | |
| Electrical Conductivity / Resistivity | Four-point probe method, eddy current | Conductivity meter, four-point probe tester | |
| Adhesion | Cross-cut test (ISO 2409), pull-off test (ISO 4624) | Cross-hatch cutter, pull-off adhesion tester | |
| Corrosion Resistance | Salt spray test (ASTM B117), humidity chamber | Salt spray chamber, humidity test chamber | |
| Abrasion Resistance | Taber abrasion test | Taber abrasion tester | |
| Fit & Tolerance Testing | Assembly fit check, gauge testing | Go/no-go gauges, mating part assembly jigs | |
| Torque & Load Tests | Torque testing (ISO 6789), load testing | Torque wrench tester, hydraulic load frame | |
| Leak Tests | Pressure decay, vacuum, helium mass spectrometry | Leak tester, helium leak detector |