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All Journal Journal of Energy, Mechanical, Material and Manufacturing Engineering Yumary: Jurnal Pengabdian kepada Masyarakat
Imam Kusyairi
Politeknik Kota Malang
Humanities Economics, Econometrics & Finance Environmental Science Mechanical Engineering Social Sciences Other

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Effects of Origami Pattern Crash Box and Rectangular Pattern Crash Box on The Modelling Of MPV Car Structure on Deformation Imam Kusyairi; Moch. Agus Choiron; Yudy Surya Irawan; Helmy Mukti Himawan
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 3 No. 2 (2018)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v3i2.6831

Abstract

 Crash box serves as a kinetic energy absorber during collision. It has a tube shape, which is located between bumper and chasis. The crash box design requires development in order to reduce buckling mode and obtain symmetry folding mechanism, so it will achieve greater energy absortion. The researchers find a method to reduce tension due to impact by providing dents in crash box geometry. This research observed origami pattern crash box design having dents functioned as pre-folded so that collapse mode can be predicted and stable. In this research, the crash box was modeled according to the size of bumper and chassis on the MPV car. Testing simulation was performed by modelling Impactor as rigid body and crash box as flexible. Fixed support was housted in the surface of rear side of the crash box. Simulation process was started from the impactor moving to supress crash box. This Impactor collision led to deformation on the crash box. Crash box material was AA7004-T7, it was modelled as bilinier isotropic hardening. Based on the research result, the addition of pre folded pattern is able to reduce impact force at the first impact and has stable characteristic as well as predictable collapse mode. 
Experimental Study on Mold-Lay Filament instead of Wax in Investment Casting Process Imam Kusyairi; Helmy Mukti Himawan; Moch. Agus Choiron; Yudy Surya Irawan; Rachmat Safari; Dagus Resmana Djuanda
JEMMME (Journal of Energy, Mechanical, Material, and Manufacturing Engineering) Vol. 5 No. 1 (2020)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v5i1.10602

Abstract

Metal casting with investment casting method is metal casting which has the ability to produce accurate parts and has a controlled fineness. Current technological developments are very influential in the development of investment casting. One of them has been found mold-lay filament as a substitute for wax, which is now wax is one of the main components in investment casting process. Mold-lay filament is printed using a 3D Printer machine. In this study, the wax in the investment casting process was replaced by a mold-lay filament with the specifications 0.75kg / 0.55 lb of 1.75mm MOLDLAY filament, prints at temperatures of 170-180° C. The result show that mold-lay flutes are also able to come out well from slurry molds, but require more time than wax, this is because one of the plastic mold-lay compositions, which takes a long time for the moldlay fillment to come out of the mold. Further research suggestions are needed further testing in terms of roughness of the product with moldlay filament and compared with wax. This will also see if there are any remaining moldlay filaments from the mold.
Pembuatan pabrik gula untuk meningkatkan kesejahteraan masyarakat Tlogowaru Malang Helmy Mukti Himawan; Aditya Kurniawan; Imam Kusyairi; Rizki Priya P; Yuke Hary Laksono
Yumary: Jurnal Pengabdian kepada Masyarakat Vol. 1 No. 2 (2020): Desember
Publisher : Penerbit Goodwood

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35912/jpm.v1i2.102

Abstract

Purpose: This study aimed to increase partners' knowledge and skills regarding the use of various equipment for processing sugarcane into solid brown sugar so as to improve the economy of the farmers. Method: 5 steps were carried out in this activity; determining the location, determining a suitable place for the construction of a sugar factory, determining suitable business units, training on appropriate technology and brown sugar factory assembly and how to influence it & training on making units business ventures and marketing results, and sustainability evaluation of the program. Results: Processing raw sugarcane into brown sugar allows partners to directly improve their economic conditions by converting sugarcane into semi-finished products, namely brown sugar that is ready to sell to the industry, especially the soy sauce industry. Conclusion: The processing of raw sugarcane into brown sugar can directly improve its economic condition by converting sugarcane into semi-finished products. And there are several factors that inhibit or tighten the manufacture of brown sugar. Keywords: Sugar cane, Brown sugar, Yield
Co-Authors Aditya Kurniawan Dagus Resmana Djuanda Helmy Mukti Himawan Moch. Agus Choiron Moch. Agus Choiron Rachmat Safari Rizki Priya P Yudy Surya Irawan Yudy Surya Irawan Yuke Hary Laksono