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All Journal Jurnal Litbang Industri Jurnal Teknik Mesin Indonesia Jurnal Litbang Industri Journal of Global Pharma Technology
Teguh Triyono
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Aerospace Engineering Automotive Engineering Chemistry Control & Systems Engineering Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology

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Analisis pengaruh variasi ukuran impeler pengaduk terhadap kekerasan, kekuatan bending dan densitas aluminium matrix composite (AMC) dengan metode stir casting Okta Kurniawan Andryanto; Teguh Triyono; Agung Tri Wijayanta
Jurnal Teknik Mesin Indonesia Vol 15 No 2 (2020): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v15i2.172

Abstract

Perkembangan sains dan teknologi di dunia industri, khususnya manufaktur di Indonesia saat ini membutuhkan jenis material terbaru. Aluminium matrix composite (AMC) adalah salah satu dari banyak jenis teknologi metode komposit yang digunakan. Pada stir casting, ukuran dari impeler pengaduk adalah salah satu parameter yang mempengaruhi hasil dari pengecoran. Kajian ini bertujuan untuk menentukan pengaruh dari ukuran impeler pengaduk pada kekerasan, kekuatan bending dan densitas dari komposit. Proses pembuatan aluminium matrix composite menggunakan metode stir casting dengan variasi pada ukuran impeler pengaduk yakni 90, 100 dan 110 mm. Kecepatan pengadukan yakni 400 rpm selama 5 menit pada suhu semi-solid. Fraksi volume dari pasir silika yang digunakan adalah 9% dan penambahan Magnesium dengan fraksi volume sebesar 2,5% dan 725oC untuk suhu pengecoran. Semakin besar ukuran impeler pengaduk akan menyebabkan penguatan partikel terpusatkan di tengah dan menggumpal di bawah pengaduk. Gumpalan tersebut menyebabkan penguatan partikel tidak terdistribusi secara merata, sehingga kekuatan mekanik akan berkurang. Nilai tertinggi didapatkan pada uji kekerasan, bending dan densitas pada ukuran impeler pengaduk sebesar 90 mm (90,87 HBN, 205,44 MPa dan 2,67 g/cm3).
Analisis pengaruh penambahan Mg terhadap kekuatan impak dan konduktivitas termal pada paduan AlSi dengan metode stir casting Abdunnashir Dhiya'uddin; Teguh Triyono; Eko Surojo
Jurnal Teknik Mesin Indonesia Vol 15 No 2 (2020): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v15i2.171

Abstract

Stir Casting merupakan salah satu metode pembuatan material logam dalam kondisi cair (liquid state) yang paling sederhana. Prinsip dari proses stir casting adalah penyatuan partikel penguat ke dalam logam cair dengan pengadukan secara mekanik, lalu dituangkan ke dalam cetakan. Kajian ini bertujuan untuk mengetahui apakah ada pengaruh penambahan Mg terhadap sifat mekanik dan fisik material paduan Aluminium Silikon berbasis remelting piston bekas. Sifat mekanik dianalisis melalui pengujian kekuatan impak, sedangkan sifat fisik diamati melalui konduktivitas termal. Variasi penambahan Mg yang digunakan yaitu 1%, 1,5%, 2% dan 2,5%. Kecepatan putar stir yang digunakan yakni 400 rpm pada temperatur 650oC, temperatur tuang yang digunakan adalah 725oC. Hasil pengujian kekuatan impak, nilai yang didapatkan menurun pada setiap variasi penambahan Mg. Nilai impak terkecil diperoleh pada variasi Mg 2,5% sebesar 0,049 J/mm2, sedangkan nilai optimal kekuatan impak diperoleh pada variasi tanpa Mg (kontrol) yakni sebesar 0,133 J/mm2. Hasil pengujian konduktivitas termal dipengaruhi oleh tingkat porositas bahan. Nilai optimal pengujian konduktivitas termal diperoleh pada variasi tanpa Mg (kontrol) sebesar 27,41 W/mK dan sedangkan untuk nilai konduktivitas termal terendah diperoleh pada variasi Mg 2,5% sebesar 7,95 W/mK.
Design manufacturing mesin pengaduk adonan roti Catur Harsito; Ari Prasetyo; Teguh Triyono; Anugrah Akbar; Bimantoro Rachmawan Suseno; Eki Rovianto; Hammar Ilham Akbar
Jurnal Litbang Industri Vol 12, No 1 (2022)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2803.202 KB) | DOI: 10.24960/jli.v12i1.7136.7-14

Abstract

Currently, bread is one of the alternative staple foods that is quite in demand by the public. This has resulted in the bread making industry being enthusiastically welcomed by business people because it has bright and open opportunities for large and small scales. However, the Micro, Small and Medium Enterprises (MSMEs) industry is unable to compete. One of them is because of the use of technology in the dough kneading process. This article discusses product planning for a horizontal type of bread dough mixer using the Design for Manufacturing and Assembly (DFMA) method and Quality Function Deployment (QFD) analysis where the design is based on design, materials, analysis, and equipment and manufacturing process planning. In this study, the Action Research method, engineering engineering and the Solidwork simulation design software were used. The design of the machine can be used for a stirring capacity of 10 kg and a rotation speed of 40 rpm. The results of the design consist of several main parts, namely the main frame, container, stirrer, motor, and transmission system
Design manufacturing mesin pengaduk adonan roti Catur Harsito; Ari Prasetyo; Teguh Triyono; Anugrah Akbar; Bimantoro Rachmawan Suseno; Eki Rovianto; Hammar Ilham Akbar
Jurnal Litbang Industri Vol 12, No 1 (2022)
Publisher : Institution for Industrial Research and Standardization of Industry - Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24960/jli.v12i1.7136.7-14

Abstract

Currently, bread is one of the alternative staple foods that is quite in demand by the public. This has resulted in the bread making industry being enthusiastically welcomed by business people because it has bright and open opportunities for large and small scales. However, the Micro, Small and Medium Enterprises (MSMEs) industry is unable to compete. One of them is because of the use of technology in the dough kneading process. This article discusses product planning for a horizontal type of bread dough mixer using the Design for Manufacturing and Assembly (DFMA) method and Quality Function Deployment (QFD) analysis where the design is based on design, materials, analysis, and equipment and manufacturing process planning. In this study, the Action Research method, engineering engineering and the Solidwork simulation design software were used. The design of the machine can be used for a stirring capacity of 10 kg and a rotation speed of 40 rpm. The results of the design consist of several main parts, namely the main frame, container, stirrer, motor, and transmission system
Red Blood Cell Alloimmunization among the Transfusion Recipients at Sanglah General Hospital, Denpasar, Bali: A Preliminary Study Sianny Herawati; Usi Sukorini; Teguh Triyono
Journal of Global Pharma Technology Volume 10 Issue 07: (2018) July 2018
Publisher : Journal of Global Pharma Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Background Red blood cell (RBC) alloimmunization is the formation of alloantibodies among the recipientswhich is related to the frequency of antigen-positive blood transfusion received by the recipient. The difficultyto obtain compatible RBC and a higher risk of hemolytic transfusion reactions due to alloimmunizationbecome a challenge in clinical practice. Objectives: This study aims to analyze the characteristics of RBCalloantibodies in the recipient following transfusion at Sanglah General Hospital, Bali, as a preliminary study.Methods A cross sectional study was conducted among 40 recipients with a history of RBC transfusion atleast 3 times and willing to participate in this study from December 2016 to March 2017 at Sanglah General Hospital. Data were analyzed using SPSS ver. 16 software to determine the prevalence of study. Resultsmost recipients were 46 – 65 years (55%). In addition, most recipients were caused by hematology disorder (57.5%), female (52.5%), and O-Rhesus D positive (52.5%). RBC alloantibodies detected in 5% of recipients,all of them were multiple alloantibodies, such as anti-K antibodies (5%), anti-Kp a (5%), anti-E (2.5%), anti-C w(2.5%), anti-Lu a (2.5%) and anti-M (2.5%). Those alloantibodies only found in 46 – 65 years age group.Conclusion the first preliminary study regarding RBC alloimmunization in Bali was found contributed by anti-K,anti Kp a , anti-E, anti-C w , anti-Lu a , and anti-M. The results suggest that erythrocyte antigen phenotypes can beperformed further, particularly the Kell antigen to prevent alloimmunization. However, future studies withbigger samples are needed to determine the incidence of RBCalloimmunization among transfusion recipients in Bali.Keywords: Alloimmunization, Red blood cells, Transfusion recipients.
Co-Authors Abdunnashir Dhiya'uddin Aditya Muhammad Nur Agung Tri Wijayanta Anugrah Akbar Ari Prasetyo Bimantoro Rachmawan Suseno Budi Santoso Eki Rovianto Eko Surojo Hammar Ilham Akbar Harsito, Catur Joko Triyono Okta Kurniawan Andryanto Rendy Adhi Rachmanto Setiawan Eka Prawira Sianny Herawati Usi Sukorini