Weld tests for friction welding

Quality requirements of welded joints depend on the form of application, e.g. in the space or fly industry weld errors are not allowed.^[1] Science try to gets good quality welds. There are many scientific articles describing the weld test, e.g. hardness,^[2][3][4] tensile tests.^[3] The weld structure can be examined by optical microscopy^[3][4][5] and scanning electron microscopy.^[6][4][5][3] The computer finite element method (FEM) is used to predict the shape of the flash and interface and others, not only for rotary friction welding (RFW),^[7] but also for friction stir welding (FSW),^[8][9] linear friction welding (LFW),^[10] FRIEX,^[11] and others. Temperature measurements are also carried out for scientific purposes e.g. by use thermocouples^[4][5] or sometimes thermography,^[7][5] mentions about measurements are generally found in research materials and journals.

See also

• Friction welding
• Temperature
• Heat-affected zone
• Weld quality assurance