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Journal : Accurate: Journal of Mechanical Engineering and Science

Rancang Bangun Alat Pemanas Induksi Proses Perlakuan Panas Ipung Kurniawan; Bayu Aji Girawan; Imam Muasih; Yosep Susanto
Accurate: Journal of Mechanical Engineering and Science Vol. 1 No. 1 (2020): April, 2020
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v1i1.162

Abstract

The heat treatment process using the fuel system is very numerous and the heating time is quite long. The use of induction heaters, heat treatment can be done with a shorter time and less energy. The purpose of this research are; (1) Make a plan design, (2) Measure the part of machine element, (3) Measure the estimation of time and design budget, (4) Test the result of induction heater machine. The method in this study uses experimental. The result of concept design evaluation, i.e., the use of trapezoid screw on the lifter system was 0,2 kilowatt of motor power, 12 mm of shaft diameter, and ball bearing 6201 with the age of 0,31 years which determined from the calculation of machine element on the induction heater system. The total of time for making this machine was 3.182,06 minutes and it spent Rp 5.360.700,-. The result of test shows that the hardness rate of raw material mild steel that given heat of hardening temperature of 850 0C, that endured for 45 minutes increasing being 84,3 HRB. However, after being tempered temperature of 400 0C having a decrease being 69 HRB.
Perancangan Sepeda Listrik Semoli Untuk Beban 80 Kg Bayu Aji Girawan; Nur Akhlis Sarihidaya Laksana; Dian Prabowo
Accurate: Journal of Mechanical Engineering and Science Vol. 3 No. 2 (2022): October 2022
Publisher : Politeknik Negeri Cilacap

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35970/accurate.v3i2.1556

Abstract

Electric bike is environmentally friendly vehicle because it doesn’t cause air pollution and it can uses electric from renewable energy sources to charge battery. Here is a lot of studies about electric bike in Indonesa, but only a few topic about electric bike for uphill climbing. In this study, electric bike will be designed for a load of 80 kgs to overcomes the uphill road at 21° of elevation. The design process contains activity such as calculation and selection of electric motor, drafting and manfacturing the frame, and riding test on flat road and uphill road at 21° of elevation. The results of design, electric bike uses 2000 watt BLDC motor, 48V 20Ah of battery, 13 teeth at front sprocket and 48 teeth of rear sprocket. From the riding test results, the bike’s maximum speed is 35 km/h reached on 5 seconds on flat road. While on uphill road with elevation of 21°, the bike’s maximum speed is 10 km/h reached on 10 seconds. The conclusion from this study that the electric bike are able to meet the needs to overcome uphill road.