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Mansyur Abdul Shaleh
Universitas Pembangunan Nasinal "Veteran" Yogyakarta
Chemical Engineering, Chemistry & Bioengineering Energy Engineering Materials Science & Nanotechnology Mechanical Engineering

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PENGARUH VARIASI METAL TRANSFER TERHADAP KARAKTERISTIK SAMBUNGAN LAS PADA PROSES PENGELASAN GMAW DENGAN PELINDUNG GAS ARGON Mansyur Abdul Shaleh; Wijoyo Wijoyo; Rohmadi Rohmadi
Journal of Metallurgical Engineering and Processing Technology Vol 3, No 2 (February 2023)
Publisher : UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v3i2.8764

Abstract

This study aims to determine the variation of metal transfer on tensile strength, impact, hardness distribution, macrostructure, microstructure and chemical composition of low carbon steel metal by GMAW welding method. The material used in this study was AISI 1018 low carbon steel. The material was welded using the GMAW method. Variation of globular arc, spray arc and short arc welding. The tests carried out included tensile testing, impact testing, hardness testing, macro-structural observations, micro-structural observations and chemical composition. The test phase to determine tensile strength refers to ASTM E8/E8M-09 with specimen dimensions of 100 mm long, 10 mm wide and 5 mm thick, while for impact testing refers to ASTM E23-07a with dimensions of 55 mm long, 10 mm wide and 10 mm thick. 10 mm with a notch depth of 5 mm and photographic observations of macro, micro and chemical composition. The test results show that the maximum tensile strength with the globular arc welding method is 526.3 MPa and the yield stress is 377.3 MPa, which is greater than that of the low carbon steel parent metal, which is 454 MPa. The impact toughness value of the globular arc welding method is 3.58 J/mm2. Results The microstructure of the weld metal undergoes structural changes in all welding methods. The test results for the chemical composition of the Fe content in low carbon steel materials by welding were 98.78% to 97.76%.
ANALISIS FORMING LIMIT DIAGRAM (FLD) PADA MATERIAL TEMBAGA Mansyur Abdul Shaleh; Atik Setyani
Journal of Metallurgical Engineering and Processing Technology Vol 2, No 3 (July 2022) Special Edition
Publisher : UPN "Veteran" Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31315/jmept.v2i3.9372

Abstract

Forming Limit Diagram also known as forming limit curve, is used in sheet metal forming to predict sheet metal forming behavior. The diagram contains a graphical description of a material failure test, such as the hollow dome test. This study aims to make a Forming Limit Diagram (FLD) of copper material with a thickness of 0.5 mm through the Nakazima standard FLD test using the experimental method research process. FLD test results are strengthened by tensile testing using the ASTM E8 standard with a cutting angle at 00 450, and 900 against the plate rolling direction. The results of the FLD test analysis on copper with a thickness of 0.5 mm show that the specimen has a maximum major strain value of 17.96% and a maximum minor strain of 7.05% while for tensile strength a cutting angle of 450 has the greatest maximum stress of 124,414 MPa, and experienced the greatest strain of 28.8%. specimen 00 true stress was 85.934 MPa, true strain was 14.5 %, and specimen 900 was true stress was 116.138 MPa, true strain was 25.4 %.
Co-Authors Rohmadi Rohmadi Setyani, Atik Wijoyo Wijoyo