Thispaper examines the possibility to improvemixedweldability of pins to mobile platforms. There is anincreasingdemand for mixed joints made of hard-weldable steel used in civil engineeringand the automotive industry. Agood exampleof this is welding of movable platform elements such as a pin to arm joints. The pin is very often made of yield structural steel S690 QL (1.8928),while the arm of the movable platform is mainly made of DOCOL 1400M steel from the AHSS group (advanced high-strength steel). This kind ofjoint is not easy to manufacturedue to the different chemical compositionsand thicknessesof both grades of steel. The difference in thethickness of welded elements creates an additional difficulty. The main aimof thisarticle is to determine the most appropriate welding parameters and select additional materials to obtain the correct joint with good mechanical properties, free fromwelding defects and incompatibilities.This article examines whether the application of micro-jet cooling technology during the welding process might help to overcome these issues. For the first time, micro-jet cooling was not used to weld these grades of steel. The welding parameters and the micro-jet cooling parameters were investigated.
MIXED WELDING OFTHEMOBILE CONSTRUCTION PLATFORM INTHE AUTOMOTIVE INDUSTRY
2021
Aufsatz (Zeitschrift)
Elektronische Ressource
Unbekannt
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