Saputra, Refa and , Ir. Bibit Sugito, MT (2021) Optimalisasi Waktu Gesek Terhadap Sifat Mekanis Dan Struktur Mikro Sambungan Las Metode Friction Welding Bahan Silinder Pejal Logam AISI 1045. Skripsi thesis, Universitas Muhammadiyah Surakarta.
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Abstract
Welding is an important process in the industrial world and is an integral part of industrial growth. One of the welding techniques without using additional metal is friction welding. Friction welding (FW) is a welding technique by rubbing two surfaces of the material and the temperature of the material being welded in a melted state (not reaching the melting point). In the process of friction welding, one material is rotating and the other material is at rest, then the material that does not rotate is rubbed against the rotating material with an emphasis until the two materials reach a melted state and the machine is stopped and the material fuses together. This research was conducted with several variations of welding friction time testing, namely testing with friction times of 4 seconds, 6 seconds, and 8 seconds. While the Rpm used is 1450 rpm and the material used is AISI 1045 steel. In the test with a friction time of 8 seconds, the optimal tensile strength test results are obtained, which is 410.47 Mpa. While the test with a contact time of 4 seconds has the smallest tensile strength test value which is equal to 353.86 MPa. And the contact time for 6 seconds obtained a tensile strength test result of 385.7 Mpa. The hardness test explains that of the three variations of the friction time, the highest hardness value is located around the weld line compared to the haz areas and the parent metal. The highest hardness value is in the weld line area with a friction time of 8 seconds of 665.94 VHN, while the lowest hardness value is in the HAZ area of steel with a friction time of 4 seconds of 203.73 VHN. From the microstructure examination, the grain size in the weld metal area is smaller and finer than the HAZ area and the parent material. Of all the variations in the friction time, the appropriate time is 8 seconds because it is viewed from the results of the tensile test obtained
| Item Type: | Karya ilmiah (Skripsi) |
|---|---|
| Uncontrolled Keywords: | Friction Welding, baja AISI 1045, Pengujian tarik, Kekerasan Vickers, Struktur mikro. |
| Subjects: | T Technology > TS Manufactures |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | REFA SAPUTRA |
| Date Deposited: | 09 Apr 2021 00:55 |
| Last Modified: | 09 Apr 2021 00:59 |
| URI: | http://eprints.ums.ac.id/id/eprint/90339 |
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