Abdulla, Farg Abdula M (2018) Effect of Pressure and Holding Time in Upset Stage on Tensile Strength of A6061 Round Bar Friction Weld Joint.
Abstract
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English Abstract
This paper aims to analyze the effect of pressure and holding time in the upset stage on tensile strength and macro-microstructures of continuous drive friction welded (CDFW) joints of aluminum alloys A6061. Friction weld specimens were welded using variations of upset pressure (40, 80, 120 MPa). The upset holding time was varied from 3, 10, to 20 seconds. Tensile strength test was conducted based on the AWS standard. The result showed that the higher upset pressure and the longer holding time in the upset stage are able to reduce porosity of CDFW weld joint and cause a higher tensile strength of the specimens. Meanwhile, from macro-microstructures observation results, it was found that the specimen with maximum tensile strength has wider partly deformed area (Zpd) and finer grains in the center of the specimen longitudinal section compared to those of the specimens with minimum tensile strength. It was occurred due to plastic deformation as the result of the higher pressure and the longer holding time in upset stage. Fracture surface observation results indicate that in the specimen with a higher upset pressure and a longer holding time, has unflate fracture surface and the fracture zone exists in the heat affected zone not in the interface like that of the specimen with lower tensile strength due to the lower upset pressure and the shorter holding time.
| Item Type: | Article |
|---|---|
| Identification Number: | PUB/671.52/ABD/e/2018/081804513 |
| Uncontrolled Keywords: | WELDING,FRICTION WELDING |
| Subjects: | 600 Technology (Applied sciences) > 671 Metalworking Processes and primary metal products > 671.5 Joining and cutting of metals > 671.52 Welding |
| Divisions: | S2/S3 > Magister Teknik Mesin, Fakultas Teknik |
| Depositing User: | soegeng sugeng |
| Date Deposited: | 22 Jan 2020 07:19 |
| Last Modified: | 05 Jul 2022 08:36 |
| URI: | http://repository.ub.ac.id/id/eprint/178239 |
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