Evaluation on mechanical properties of WAAM-aluminum additive layer

Name: Jukkapun Greebmalai

Organization : Mahidol University. Faculty of Engineering

Name: Eakkachai Warinsiriruk

Organization : Mahidol University. Faculty of Engineering

Email : Eakkachai.war@mahidol.ac.th

LCSH: Aluminum -- Additives -- Mechanical properties

Abstract: The evaluation study on mechanical properties of the aluminum additive layer, focusing on the tensile strength of aluminum alloy (AL5356) additive layer from Wire and Arc Additive Manufacturing (WAAM) process using the Double Pulse (DP) current in Gas Metal Arc Welding (GMAW) process. For build additive layer geometry as open-figure by continuous weld layer upon layer. The starting was used contact to work distance (CTWD) as 15 millimeters. The built-up direction has increased as layer height 0.5-millimeterlayer by layer up to 100 layer finish. the mechanical testing, the result was found the base material was crack like a cone shape indicating the high ductility and good elongation. In the case of the interface and additive layer strength, the ultimate tensile strength (UTS) decreased 30.5% from the base material (183 MPa) to the additive layer (145 MPa) in the transverse direction. Moreover, the area of the interface (Fusion area) was a 5% increase in the UTS (192 MPa), due to the heat was effect. In the case of the fracture, appearance found the laminate layer almost occurred flat crack because of the less elongation compare with the base material, which has cone crack appearance. Therefore, this result could conclude the additive layer decreased the strength from the base material. However, the longitudinal was high value in both UTS and elongation. The longitudinal additive layer had increased UTS 81.8% (264 MPa) and increased elongation 101.7% (46 %) compare with the transverse direction layer, the cause of the weld bead was tightening than each layer jointing. Not only better than the transverse direction layer, the result indicates the longitudinal direction had almost the same properties as the base material

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2565

Modified: 2022-08-17

Issued: 2022-08-17

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BibliograpyCitation : ใน คณะวิศวกรรมศาสตร์และเทคโนโลยีอุตสาหกรรม มหาวิทยาลัยศิลปากร. การประชุมวิชาการข่ายงานวิศวกรรมอุตสาหการ ประจำปี 2565 (IE Network 2022) (pp.394-398). นครปฐม : มหาวิทยาลัยศิลปากร

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