Analysis of Porosity Defects in Aluminum as Part Handle Motor Vehicle Lever Processed by High-pressure Die Casting

5th International Conference on Advanced Materials Sciences and Technology

Anggraini, L.^1 ; Sugeng^2

Faculty of Engineering, President University, Jalan Ki Hajar Dewantara, Jababeka Education Park, Cikarang Baru, Bekasi

17550, Indonesia^1

Undergraduate Study Program of Mechanical Engineering, President University, Jalan Ki Hajar Dewantara, Jababeka Education Park, Cikarang Baru, Bekasi

17550, Indonesia^2

关键词: Aluminum (Al);    and properties;    Braking devices;    Casting process;    High pressure die casting;    Motor vehicle;    part handle lever;    Porosity defects;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/367/1/012039/pdf
DOI  :  10.1088/1757-899X/367/1/012039

来源: IOP

【 摘 要 】

This research discusses the testing and analysis of cracking Aluminum (Al) material. Al as a handle lever was used for a braking device on a motor vehicle. Cracking of handle lever due to the part content of porosity from hydrogen gas. The existence of the H2can be caused by the casting process and dies design that is less perfect, especially at the gate or brisket and overflow. This research is to optimize the process of making Al part handle lever, and the construction dies by following the standard. The results of these improvements were reevaluated through the chemical and mechanical testing properties stages, such as density test and tensile test on the workpiece as part handle lever. The loads on the tensile test are 25 kg and 35 kg, and the tensile test result has met the standard set by the motor vehicle company. The optimization result has the porosity defect can be reduced by 99 %. Therefore the best part handle lever can be produced.