UT (Ultrasonic testing)
The ultrasonic examination is a comprehensive technical process, which is widely applicable. This testing procedure serves the purpose of volume inspection of sound conductive materials. Discontinuities in the inside of the materials can be found by the defined sending of sound waves and its reflections. Examples are the examination of weld seams, cast component, measurements of wall thickness or testing of lamination on piping and sheet metal.
MT (Magnetic particle examination)
The magnetic testing is used to find fissures in the surface of ferromagnetic materials. By applying defined electromagnetic scatter fields, fissures become visible with the help of a magnetic powder. This testing method can be conducted under daylight or fluorescent under UV-light. Every method has their individual benefits, depending on the locational circumstances. Examples are the testing of weld seams, the casing of cogwheels or the casing of valves.
PT (Dye penetrant testing)
The dye penetrant testing is used to find flaws on surfaces of metallic and non-metallic components. Through the capillary action effect, the testing liquid is able to get into the smallest surface discontinuities. This testing method can be conducted under daylight or fluorescent under UV-light. Every method has their individual benefits, depending on the locational circumstances. Examples are the testing of weld seams on austenitic materials or seal faces with weld cladding or friction bearing.
VT (visuale testing)
The visual testing is used to find flaws and features with regard to reference standards, measurement tools and theories. Qualified test inspectors can identify abnormalities in the manufacturing process of components at an early stage. The (video-) endoscope is a popular method used in the visual testing. Thus, abnormalities for example in voids of components or cooling channels can be detected and documented. Examples are the testing of cast component surfaces, endoscope workings at hard-to-reach-to locations or geometric controls of weld seams.
HT ( Hardness testing mobile)
The mobile hardness testing is used to verify predefined material- and procedure dependant hardness parameter. By applying a small indentation with defined parameters on the component, the hardness parameters can be determined. Examples are the testing of heat-treated components, hardness profile testing on weld seams as well as their heat affected zone and ball bearing.
LT (Leak testing)
The leak testing is used to identify pressure losses and leakages. By using specific inspection systems, those can be determined and located. One of the most sensitive leak tests is the helium leak test. Here, the medium helium is used as a test gas to identify even the smallest leakages. Examples are the testing of pipelines, containers and heat exchangers.
PMI ( positive material inspection / X-ray fluorescence analysis)
The material determination is used for definite determinations of for example alloys. The quantitative as well as qualitative composition can be determined with this analysis. Examples are the testing of incoming controls of ordered materials and assemblies or the verification of filler material. However, this method is not able to identify all elements, such as the “light elements” like H2O or Carbon.