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All Journal IPTEK The Journal of Engineering Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains METIKS: Jurnal Teknik Mesin, Elektro, Informatika, Kelautan & Sains
Muhammad Ikhlas
Universitas Gadjah Mada
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Analisis Jalan Pahat dan Biaya Produksi Disc Brake Sepeda Motor Menggunakan Metode Taguchi dan Softwate Mastercam Muhammad Ikhlas; Anita Susilawati
Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains Vol 8 (2021): Edisi 2 Juli s/d Desember 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Teknik dan Sains

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Abstract

Tool path generation is very important to optimal time and cost of the production process of product. This research purpose is to analyze tool path generation and production cost of disc brake for roughing and finishing work on die casting product. This research was used the Taguchi method and simulation using by Software Mastercam 2020 (CNC Milling). The simulation result was obtained the estimates time for each variable that was tested. Then it can be analyzed the cost of production to obtaining the efficient tool path in the manufacturing of disc brake. This research was resulted a dynamic tool path in facing with face mill’s tool for roughing process with a spindle speed of 2,825 rpm, the feed rate of 2,373 mm/minute, and depth of cut of 0.18 mm. The contour for roughing process with a spindle speed was 10,743 rpm, the feed rate of 4,673 mm/minute, and depth of cut 0.8 mm. Then the finishing process for facing with end mills’s tool produces a dynamic toolpath with a spindle speed of 11,937 rpm, the feed rate of 8,595 mm/minute, and depth of cut of 0.05 mm. The finishing process for drilling produces a chip break toolpath with a spindle speed was 6,565 rpm and feed rate of 788 mm/minute. Finally the contour for finishing process with a spindle speed was 11,937 rpm, feed rate of 8,595 mm/minute, and depth of cut of 0.25 mm. Therefore, the final simulation was produced 7.2975 minutes for time of production, so the total of production cost was Rp 74,056/product. Keywords : Disc brake, CNC milling, taguchi method, mastercam, cost production
PENGARUH MODIFIKASI GEOMETRI FINS TERHADAP PERFORMA TERMAL HEATSINK VERTIKAL Widyastutifajri Nuha; Agusyarif Rezka Nuha; Muhammad Ikhlas
Journal Teknik Mesin, Elektro, Informatika, Kelautan dan Sains Vol 3 No 2 (2023): Jurnal Teknik Mesin, Elektro, Informatika, Kelautan & Sains
Publisher : Jurusan Teknik Mesin Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/metiks.2023.3.2.29-35

Abstract

Komponen elektronik memiliki perkembangan teknologi yang sangat pesat dalam beberapa dekade terakhir. Heatsink adalah perangkat yang digunakan untuk menghilangkan panas dari komponen elektronik dengan tujuan untuk menjaga perangkat elektronik tetap beroperasi pada temperatur kerjanya. Salah satu metode yang dapat digunakan untuk meningkatkan efisiensi perpindahan panas heatsink adalah dengan memodifikasi geometrinya untuk memperoleh model yang lebih optimal. Penelitian ini menginvestigasi pengaruh fins heatsink konvensional (Model A) dan modifikasi geometri fins heatsink (Model B) terhadap performa termal heatsink dengan variasi beban kalor. Penelitian ini menggunakan Computational Fluid Dynamics untuk mesimulasikan, menganalisis dan memodelkan perpindahan panas fluida di sekitar heatsink. Hasil penelitian ini menunjukan bahwa Model B memiliki nilai koefisien perpindahan kalor lebih besar yaitu 2,51% sampai 7,07% dibandingkan dengan Model A. Secara keseluruhan modifikasi fins heatsin Model B memberikan peningkatan pada performa termal heatsink.
The Effect of Build Orientation on Liquid Absorption and Wear of 3D-Printed Denture Materials Muhammad Ikhlas; Sukmaji Indro Cahyono; Benidiktus Tulung Prayoga; Rini Dharmastiti; Budi Arifvianto; Muslim Mahardika
IPTEK The Journal of Engineering Vol. 11 No. 1 (2025)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j23378557.v11i1.a21583

Abstract

Up till now, denture has been widely used for resolving dental problems, especially those due to attrition. The attrition of tooth enamel could lead to wear and lowering the functions of normal teeth. So far, denture is made conventionally by using heat curing method in a mold. However, the complex geometries of teeth and oral cavity has led to the use of the more advanced techniques, such as additive manufacturing. In this research, the denture material fabricated by using digital light processing (DLP) additive manufacturing was studied in term of their liquid absorption capability and wear behavior. The specimen was printed with three build orientations, namely 0°/180°, 90°/90°, and 45°/135°. These are the degree between printing direction against sliding direction. An immersion and wear test were carried out in artificial saliva liquid. The result showed the lowest weight gain and dimensional change in the specimens printed with 90°/90° and 45°/135°. Meanwhile, the specimens prepared with build orientation of 0°/180° or printed with layer parallel to sliding direction demonstrated the smallest value of wear factor, indicating a better wear resistance compared to the others. A visual examination of the worn surface indicated delamination, abrasion and cracking as the possible wear mechanisms of the printed denture materials.
Co-Authors Agusyarif Rezka Nuha Anita Susilawati Benidiktus Tulung Prayoga Budi Arifvianto Muslim Mahardika Rini Dharmastiti Sukmaji Indro Cahyono Widyastutifajri Nuha