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Analisis Kekuatan Tarik dan Regangan Filamen Carbon Fiber Hasil 3D Print dengan Variasi Fill Density Braam Delfian Prihadianto; Suryo Darmo; Dani Anggoro Hasan; Dovan Ndaru Ananda
Infotekmesin Vol 14 No 2 (2023): Infotekmesin: Juli, 2023
Publisher : P3M Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/infotekmesin.v14i2.1936

Abstract

Mechanical properties problems that are closely related to the strength of 3D printed products generally occur during the development of 3D printing machines, In which several components used are the results of additive manufacturing technology. The damages generally occur in the components that receive force and the damage is in the form of cracks and fractures. The focus of this study is to determine the effects of increasing the value of fill density on mechanical properties, especially tensile strength and strain with carbon fiber filament material. This study used an experimental method using two types of filament material: nylon carbon fiber and PLA carbon fiber with a diameter of 1.75 mm for each filament and a recommended printing temperature of 190-260°C. Both types of filaments were printed using a direct extruder type 3D printing machine with a build size of 180 mm x 180 mm x 180 mm and printing was carried out at atmospheric pressure and a horizontal printing area. The Universal Testing Machine carried out mechanical properties testing implementation related to tensile strength and strain. Based on the results of experiments and tests that have been carried out, the strain values ​​are 16.970 – 26.681% and the tensile strength is 19.244 – 23.899 MPa for nylon carbon fiber filament material. Whereas the PLA carbon fiber filament material, the strain value is 7.673 – 15.546%, and the tensile strength is 18.580 – 24.552 MPa. Therefore, based on the test results, it is known that the fill density parameter value has an influence on the strain value and tensile strength so that it can be used as a reference in setting machining parameters.
Perancangan Mekanisme Pengaduk Kompos Sampah Organik dengan CAD/CAE Budi Basuki; Andhi Akhmad Ismail; Sugiyanto; Dani Anggoro Hasan; Muhammad Alif
Jurnal Engine: Energi, Manufaktur, dan Material Vol. 8 No. 2 (2024)
Publisher : Proklamasi 45 University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30588/jeemm.v8i2.2000

Abstract

The management of organic waste into compost is one of the important solutions in an effort to reduce the negative impact of organic waste on the environment. A compost mixer is one of the technologies that can be used to speed up the process of decomposing and forming compost from organic waste. This research aims to continue previous research that has succeeded in making organic waste shredding machines. The methods used in this study include a literature survey on the basic principles in organic waste management, available technologies, and the design of stirring machine mechanisms that have been carried out previously. Based on the literature analysis, some factors in the design of the compost mixer machine are the material and shape of the composting blade, adequate construction strength, the need for sufficient rotation to achieve organic waste homogenization, and the ease of operation and maintenance. The design process utilizes CAD/CAE software to compile 3D models and simulate various operational conditions. The result of this research is the design of an efficient compost mixing machine mechanism. In addition, special attention is paid to the selection of materials and the shape of the stirring blades that are resistant to wear and corrosion. This design also takes into account the ease of access for routine cleaning and maintenance.