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All Journal Jurnal Teknik Mesin Sinergi
Ilyas Mansur
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Energy Mechanical Engineering

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Rancang Bangun Mesin Ektrusi Pembuat Filamen dengan Sistem Screw Conveyor Rusdi Nur; Nursyahbani P Parahdiba; Ikhlas Abdullah; Dimas F Roji; Sitti Sahriana; Ilyas Mansur
Jurnal Teknik Mesin Sinergi Vol 20, No 1 (2022): April 2022
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (879.334 KB) | DOI: 10.31963/sinergi.v20i1.3433

Abstract

Plastic extrusion machine is a tool to carry out the process of extrusion or formation by utilizing plastic blockage by using high temperatures for the process of melting and reshaping with mold into a certain form, where the drive used in the extrusion machine is a power thread formed in such a way as to be able to conduct or move the material. Extrusion machine made with the principle of horizontal shape and use screw conveyor as a material drive in the extrusion process. Extrusion Machine uses HDPE pellets as a test material to print filaments with a attached specification of 31.81 rpm of speed and 915 watt of element band heater power. The process of designing an extrusion machine with the screw conveyor was using standard flight or standard blade, on the grounds that the screw or thread only serves to move the material to the end of the nozzle. The screw conveyor size is 500 mm long, screw diameter is 50 mm and the distance between pitches is 25 mm followed by the dimensions of the machine is 800 x 400 x 600 mm. The test results were conducted using HDPE polyethylene pellet material with variable temperature variations consisting of 5 types of temperature, namely, 120 ° C, 110 ° C, 110 ° C, 95 ° C and 90 ° C, form the five variables above we conducted trials on each temperature. Then we got it and we concluded that the experiment using the temperature variable of 100 ° C has the most optimum output results, where the temperature of 120 ° C and 110 ° C has a liquid output result then the temperature of 90 ° C and 95 ° C has a condition where the material dries too quickly and make the nozzle clogged.
Analisis Pengaruh Nitridasi terhadap Sifat-Sifat Mekanis Baja St. 32 dan Paduan Aluminium Cor 2014 Ilyas Mansur; Nur Wahyuni
Jurnal Teknik Mesin Sinergi Vol 7, No 2 (2009): Oktober 2009
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (381.517 KB) | DOI: 10.31963/sinergi.v7i2.1048

Abstract

Penelitian ini bertujuan untuk mengetahui: pengaruh variasi waktu dan temperatur nitridasi terhadap sifat-sifat mekanis, pengaruh kecepatan pengecoran baja St.32 dan paduan aluminium cor 2014 yang di variasi waktu dan temperatur nitridasi terhadap sifat-sifat mekanis. Metode penelitian berupa pengujian bahan baja St.32 dan paduan aluminium cor 2014 hasil proses nitridasi yang divariasi waktu dan temepratur perlakuan, dan diuji sifat-sifat mekanis berupa pengujian struktur mikro, uji tarik, uji kekerasan dan uji pukul takik. Hasil penelitian menunjukkan dengan variasi waktu dan temperatur nitridasi menghasilkan peningkatan nilai kekerasan pada baja St.32 dan paduan aluminium cor 2014. meningkatnya nilai kekuatan tarik dan nilai pukul takik pada baja St. 32, dan menurunnya nilai kekuatan tarik dan pukul takik pada paduan aluminium cor 2014. Variasi kecepatan pengecoran paduan aluminium cor 2014 dan baja St.32 yang di variasi waktu dan temperatur nitridasi menghasilkan peningkatan nilai sifat mekanis pada baja St.32 kecepatan pengecoran 150 mm/min, paduan aluminium cor 2014 kecepatan pengecoran100 mm/min.
Pengaruh Larutan Natrium Hidroksida Terhadap Kekuatan Komposit Serat Sabut Kelapa Yan Kondo; Muhammad Arsyad; Muhammad Rusdi; Ilyas Mansur; Muhammad Jufri Dullah
Jurnal Teknik Mesin Sinergi Vol 20, No 1 (2022): April 2022
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (707.89 KB) | DOI: 10.31963/sinergi.v20i1.3467

Abstract

Abstract: The purpose of this study was to determine the effect of soaking coconut fiber in sodium hydroxide solution on the strength of the coconut fiber composite. This research was divided into several stages, namely: preparation of materials and tools, the process of soaking coconut fiber, making coconut fiber composites, testing the tensile and flexural properties of coconut fiber composites, and analyzing the test results. Coconut fiber is soaked in sodium hydroxide solution, then dried in an oven, then used as a composite reinforcement using BQTN 157 polyester resin with a composition of 5% coconut fiber. Based on the results of the tensile test according to the ASTM D638-03 standard, and the flexural according to the ASTM D790 standard, it was concluded that the process of soaking coco fiber in sodium hydroxide solution of 5%, 10%, 15%, and 20% had not been able to increase the strength of the coco fiber composite with composition of 5% coconut coir fiber compared to the strength of the resin.
Co-Authors Dimas F Roji Ikhlas Abdullah Muhammad Arsyad Muhammad Jufri Dullah Muhammad Rusdi Nur Wahyuni Nursyahbani P Parahdiba Rusdi Nur Sitti Sahriana Yan Kondo