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All Journal Journal of Mechanical Engineering Education (Jurnal Pendidikan Teknik Mesin) Asean Journal of Science and Engineering (AJSE)
Asep Hadian Sasmita
Universitas Pendidikan Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Education Engineering Materials Science & Nanotechnology Mechanical Engineering

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APPLICATION OF ONLINE LEARNING MODELS IN AIRCRAFT COMPONENT MACHINING AT VOCATIONAL HIGH SCHOOL Ari Akhmad Fauzi; Asep Hadian Sasmita; Yusep Sukrawan
Journal of Mechanical Engineering Education Vol 8, No 2 (2021): Desember 2021
Publisher : Universitas Pendidikan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17509/jmee.v8i2.40890

Abstract

Covid-19 cases spread throughout the world. This Covid-19 case has disturb to all aspects of life, even the education sector has been affected. The government’s efforts to continue the learning process with distance learning (online)  as known as online learning. Expansion of this technology has begun to be used by several schools in Indonesia to implementation of their educational programs, as known as e-learning. One of them is using LMS Moddle. LMS Moddle supports to submit of learning materials, assessment, collaboration and interaction between teacher and student. Aircraft Component Machining subject were delivered by distance learning model in Vocational High School. This study aims to determine improvement of student learning outcomes with the application of online learning models. The design of this study uses Quasi-Experimental Design with Equivalent Time Series types. The research sample was 30 students from class XI Vocational High School at Bandung. The application of the syntax of the online learning model contains five steps of the learning process, namely performance support materials, self-paced learning, live events, collaboration, and assessment. The results of the study based on average value of N-gain showed that student learning outcomes had increased. User response online learning models are include in interesting category.
Optimization of The Oxy-Acetyline Gas Cutting Process on Aisi 1045 Steel Material to Produce Minimum Width Kerf Mohammad Egie Syahputra; Haipan Salam; Asep Hadian Sasmita
ASEAN Journal of Science and Engineering Vol 1, No 3 (2021): AJSE: December 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (911.586 KB) | DOI: 10.17509/ajse.v1i3.34227

Abstract

This research is intended to determine the optimum combination of parameters and how much the contribution of the parameters of cutting speed, oxygen gas pressure, and nozzle distance to the width of the cutting kerf. This research was conducted with a method, namely Taguchi Design of Experiments (DoEs) by varying the process factors used in the AISI 1045 steel material cutting process. The control factors in this study consisted of three factors, namely cutting speed, gas pressure, and tip distance. The cutting speed and cutting gas pressure are significant factors in the optimization of the AISI 1045 steel cutting process for minimum kerf width with a contribution of 95.6%, while the tip / nozzle height factor is not significant in the optimization of the AISI 1045 steel cutting process for the kerf width minimum. The optimum parameter values to obtain the minimum kerf width in AISI 1045 steel are cutting speed of 250 mm/min, gas pressure of 3 kgf/cm2, and tip height of 4 mm. Furthermore, the results of the verification tests carried out indicated that the optimal process parameter formula obtained is feasible to use, indicated by the S / N ratio and confidence interval (CI) of prediction and verification that coincide with one another. The optimal process parameter formula can be used as a reference for industrial production activities with a 95% success rate.
Co-Authors Ari Akhmad Fauzi Mohammad Egie Syahputra Salam, Haipan