@thesis{thesis, author={NOBERT PRASETYO CHANTIAGO}, title ={PENGARUH VARIASI FEEDRATE TERHADAP KEKUATAN SAMBUNGAN FRICTION STIR WELDING PADA MATERIAL AL 2024-T4}, year={2018}, url={http://eprints.stta.ac.id/2313/}, abstract={Friction stir welding is an advancement in the field of friction welding. Friction stir welding has the opportunity to become a successful welding process used in the future. One of its uses is as replacement for the rivet method on plate-shaped materials. In the world of aviation This method can be used to connect aircraft fuselage skin materials fly. This welding does not use filler materials or the process some welding defects such as cracks and porosity can be reduced. The research method was carried out using the friction stir welding process using feed rate variations of 33 mm/minute, 25 mm/minute, 16.5 mm/minute, and 12.5 mm/minute with plate-shaped specimens. Next is the material connection aluminum resulting from the friction stir welding process is tested using testing hardness and tensile testing are then compared with materials that do not undergoes a friction stir welding process. The analysis results show that the specimen underwent a friction stir process welding has Vickers Hardness (HV) and Ultimate Tensile Strength values (UTS) which relatively decreases by around 50% from raw material. This is in caused by external or internal defects in the connection. Meanwhile, the trend in HV values ??is high at high feed rates and decreases at low feed rate. However, the trend in UTS scores shows the opposite, namely value UTS increases from high feedrate to low feedrate.} }