PENGARUH VARIASI MEDIA PENDINGIN TERHADAP KEKUATAN TARIK DARI HASIL PENGELASAN LISTRIK PADA BAJA AISI 1050

Technological developments in the manufacturing sector are currently increasingly advanced. For this reason, the use of metal in every component of machinery and building construction must be adjusted to the nature of its use and strength. Efforts to keep the metal more resistant to pressure or stress to heat treatment on steel and test it using a cooling medium. The purpose of this study was to determine the effect of cooling variations on the tensile strength of post-welding products, which then resulted in fewer fractures. This study conducted an analysis of AISI 1050 steel, medium carbon steel with a content of C = 0.5%. From the results of different studies, it is known that all existing welded objects and their tensile strength tests with 3 cooling media namely air, used oil and air have tensile strength values. From the 3 cooling media used, it can be seen that a good cooling medium is an air cooling medium with a strength of 555 MPa or 56.65 kg/mm². Meanwhile, the cooling medium that produces the lowest tensile strength is water cooling media with a value of 423 Mpa or 43.16 kg/mm²