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Nozel : Jurnal Pendididikan Teknik Mesin
Published by Universitas Sebelas Maret
ISSN : -     EISSN : 2656713X     DOI : https://doi.org/10.20961/nozel
Core Subject :
NOZEL : Jurnal Pendidikan Teknik Mesin is a national forum for the publication and dissemination of original work which contributes to greater scientific understanding of the main disciplines underpinning the mechanical engineering and vocational education. This international journal is dedicated to the latest advancements in mechanical engineering and vocational education. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of mechanical engineering and vocational education. This journal is published in the online journal, which publishes research articles, reviews, and letters in all areas of mechanical engineering and vocational education. It is a blind peer-reviewed journal, aims to provide the most complete and reliable source of information on current developments in the field. The emphasis will be on publishing quality papers rapidly and available to researchers worldwide.
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Articles 8 Documents
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Search results for , issue "vol 1, no 1 (2019)" : 8 Documents clear
PENGEMBANGAN MEDIA PEMBELAJARAN CNC BERBASIS PERANGKAT LUNAK ANIMASI Dwi Kusuma Ulinnuha; Budi Harjanto; Indah Widiastuti
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 1 (2019)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v1i1.28482

Abstract

This research aims to (1) develop an instructional material based animation software for CNC course, (2) evaluate instructional material for CNC course that has been developed. The research was conducted at the Department of Mechanical Engineering Education, Faculty of Teacher Training and Education, Sebelas Maret University Surakarta. This research used Multimedia Development Life Cycle (MDLC) as research procedure, which consists of six stages, concept, design, collecting material, assembly, testing and distribution. Evaluation of instructional material for CNC course was performed by ask potential users to operate CNC instructional material that have been developed, then get response from potential users through a questionnaire. Potential users are divided into two categories, lecturers of CNC and CAM courses and students of Mechanical Engineering Education who take CNC and CAM courses in the academic year 2015/2016. Questionnaire for lecturers of CNC and CAM course reviewing instructional material from aspects of learning content, interaction, and presentation of the material. The questionnaire was given to 3 lecturers consisting of 15 point statements with Rating Scale as assessment system on intervals 1-5. Questionnaire for student reviewing instructional material from aspect of learning motivation as one of instructional material function. Questionnaire was given to 26 students consisting of 20 point statements with Likert Scale as assessment system on intervals1-5. The results of the research show (1) the development of instructional material for CNC course used Adobe Flash CS6 as main software with MDLC as development procedure, (2) the evaluation results show the instructional material for CNC course that developed gets (a) in aspects of learning content, interaction, and presentation of the material, the instructional material for CNC course gets very good category with percentage 90,22%, (b) in the aspect of learning motivation as one of instructional material function, the instructional material for CNC course gets good categories with percentage 78,39%.
PENGARUH VARIASI PENAMBAHAN FLY ASH & BENTONIT TERHADAP SIFAT PASIR CETAK DAN CACAT GASHOLES PADA HASIL PENGECORAN LOGAM ALUMINIUM Faqih Bahrudin; Budi Harjanto; Herman Saputro
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 1 (2019)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v1i2.30430

Abstract

The objectives of this study to describe: (1) The effect of adding fly ash and bentonite to the permeability of molding sand. (2) The effect of adding fly ash and bentonite to the moisture of molding sand. (3) The effect of adding fly ash and bentonite to gasholes defect on aluminium metal casting. This study is conducted at Polytechnic of Manufaktur Ceper, Klaten. The method that used is pre-experimental design which one-shot case study design. The compositions of the molding sand are varied is fly ash and bentonite. The Sample variations are divided into 4 types based on fly ash and bentonite concentration. The comparison of fly ash and bentonite concentration are: variation A are 0%:9%, variation B are 1%:8%, variation C are 2%:7%, and variation D are 3%:6%. The tests which is done in this study such as permeability test by using permeability tester, moisture test by using moisture tester, and gaholes defect test by using visual observation and calculation of gasholes defect.The results showed that: (1) The adding fly ash and bentonite can decreased the permeability values of molding sand. The lowest permeability values occur at variation D that is 85.34 cm3/min. (2) The adding fly ash and bentonite can decreased the moisture of molding sand. The lowest moisture values occur at variation D that is 5,26 %. (3) The adding fly ash and bentonite can improved the quality of castings. The results of castings at variation B which adding fly ash and bentonite has less gasholes defects compared with variation which no adding fly ash that is 3,15 cm3
PENGARUH KUAT ARUS PADA PENGELASAN PADUAN ALUMINIUM 6061 DENGAN MENGGUNAKAN METODE LAS TIG TERHADAP KEKERASAN DAN STRUKTUR MIKRO Rochim Toat Wicaksono; Suharno Suharno; Budi Harjanto
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 1 (2019)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v1i1.28484

Abstract

The objective of research was to find out the effect of current on microstructure and hardness value in Aluminium Alloy 6061 before (raw material) and after welding using Tungsten Inert Gas (TIG) welding method with filler rod ER4043. This research uses experiment methods. Technique of analyzing data used was a descriptive comparative research. The instruments used for testing microstructure and hardness were Olympus Metallurgical Microscope and Vikers Hardness Tester. Base on the result of research, it could be concluded that the result of microstructure testing showed the reduced Mg2Si phase width after welding. In raw material, the Mg2Si phase seemed to diffuse surrounding the α-Al phase surface, but the result of welding using TIG welding method with current of I00 A, 110 A, and 115A showed that Mg2Si phase reduced in each specimen, so that α-Al phase was very dominant. The hardness value of hardness result showed the different hardness level. The specimen with current of 110A had higher hardness level of 65.4 VHN than the specimen with current of 100 A (55.7 VHN) and 115 A (55.9 VHN). The result of hardness testing on raw material was 120.4 VHN. This research showed that the welding using varying current changed microstructure and affected the hardness value of Aluminum Alloy 6061.
ANALISIS PENGGUNAAN WORK PREPARATION SHEET DAN PERAN INSTRUKTUR TERHADAP KETRAMPILAN MEMBUAT ULIR SQUARE PADA MATA PELAJARAN PRAKTIK OPERASI MESIN BUBUT LANJUT SISWA SMK BHINEKA KARYA Rosandi Surya Wijaya; Muhammad Akhyar; Nyenyep Sriwardani
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 1 (2019)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v1i2.32992

Abstract

The objectives of this study were: (1) correlation between Work Preparation Sheet (WPS) and threading skills in practicum on advanced machining practice subjects at Bhinneka Karya Surakarta Vocational School, (2) relationship between instructor role and threading skills in practical subjects of machining practice subjects continued at Bhinneka Karya Surakarta Vocational School, (3) relationship of WPS implementation between the instructor's role simultaneously and the skill of making square threads in practical subjects in advanced machining practice subjects at Bhinneka Karya Surakarta Vocational School. The population of this study was all students from class XI in the mechanical engineering program at Bhinneka Karya Surakarta Vocational High School. The Issac-Michael table of 84 students raised the sample size. The sample members are appointed using simple random sampling technique. This processing data uses IBM SPSS version 21.0 software. The results of this study indicate that the useful contribution given by the WPS variable to the skill of making square yarn is 43.9%, while variations in the role of the instructor create a valuable contribution of 12%. This shows that both variables contribute effectively to the skill of making square yarn by 55.9%, and there are 44.1% influenced by other factors not explained in this study. The implementation of WPS as a medium for practical learning and the instructor role as a facilitator's practice results in students' efficiency in turning machine practices into making square threads in terms of faster time processing and improved practice scores.
UPAYA MENINGKATKAN MOTIVASI DAN HASIL BELAJAR SISWA MELALUI MODEL PEMBELAJARAN PRACTICE REHEARSAL PAIRS PADA PEMBELAJARAN PRAKTIK PEMESINAN KELAS XI TMB SMK BHINNEKA KARYA SURAKARTA Arseta Budi Utomo; Danar Susilo Wijayanto; Basori Basori
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 1 (2019)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v1i1.28476

Abstract

The research is intended to improve successfully learning motivation and achievement in Mechanical Engineering B, 11th grade at vocational high school of Bhinneka Karya Surakarta in Machinery Practical Learning using Practice Rehearsal Pairs learning model. The research is Classroom Action Research that conducted in two cycles. Each cycle consisted of four stages, there are: planning, acting, observing, and reflecting. The instruments to collect the data, there are questionnaire, interview, test, observation, and documentation. The data was carried out using descriptive qualitative analysis. The result of research showed that there is an improvement in students’ learning motivation and achievement. The student’ learning motivation increased from 74.5% in cycle 1 to 92.59% of students having learned motivation belonging to minimally good category in cycle 2. The students’ cognitive learning achievement increased from 66.67% to 88.89%, the affective learning achievement increased from 81.48% to 85.19%, and the psychomotor learning achievement of students increased from 74.07% to 88.89% of students who could achieve MPC.
PENGEMBANGAN MEDIA PEMBELAJARAN E-PUBLICATION MODUL TEKNIK SEPEDA MOTOR MAHASISWA PENDIDIKAN TEKNIK MESIN FKIP UNIVERSITAS SEBELAS MARET Wisnu Dimas Sasongko; Indah Widiastuti; Budi Harjanto
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 1 (2019)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v1i2.32996

Abstract

Mobile learning has become a great tool for delivering educational resources in which learners can not only access the module anytime and anywhere, but also can actively interact with the learning material. This research aims to design and develop learning material of an automotive engineering course based on mobile device for mechanical engineering education students. The development e-publication module of motorcycle mechanic course employed the ADDIE instructional design model encompassing five steps: analysis, design, development, implementation, and evaluation. The student’s learning style was identified to characterize mobile module target. It was found that majority of the students as user have auditory and kinesthetic, then the module will be designed with the design in accordance with auditory and kinesthetic learning style, therefore the module will be mainly designed on audio-based format. The learning module developed using e-publication software consisting of structured documents combined with audio and video files. Some experts were asked to evaluate the implementation feasibility of the module. The average evaluation score was 85.4%, indicating high acceptance of implementing the learning module. It implies that e-publication module delivery has the potential to gain wider acceptance in engineering education complementing the in-class and practical learning.
PENGARUH PENGGUNAAN TIPE ELEKTROLISER DAN JENIS LARUTAN PADA HYDROGEN ECO BOOSTER TERHADAP EMISI GAS BUANG SEPEDA MOTOR 4 TAK Abdul ‘Aziz Manggala Saputra; Ranto Ranto; Basori Basori
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 1 (2019)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v1i1.28480

Abstract

The purpose of this research are: (1) Investigate the influence of the type of electrolyzer on Hydrogen Eco Booster towards the level of exhaust emissions (CO and HC) 4 stroke motorcycle. (2) Investigate the influence of the kind of solvent on Hydrogen Eco Booster towards the level of exhaust emissions (CO and HC) 4 stroke motorcycle. (3) Investigate the influence of the type of electrolyzer and the kind of solvent on Hydrogen Eco Booster towards the level of exhaust emissions (CO and HC) 4 stroke motorcycle. This research was conducted at the Automotive Laboratory of Mechanical Engineering Education, Teacher Training and Education Faculty Sebelas Maret University of Surakarta used a Honda Supra X 125 motorcycle, year of manufacture 2013. This study is an experimental research. The method of collecting data used in the research is measurement method. The data obtained from the test results were analyzed using Two-Way Anova Test and followed by One-Sample T Test and Scheffe Test. The results of this research are: (1) There is a significance effect on the type of electrolyzer on Hydrogen Eco Booster towards to decrease the level of exhaust emissions (CO and HC) 4 stroke motorcycle, (Sig-value of CO gas=0.001 < α=0.05) and (Sig-value of HC gas=0.000 < α=0.05). (2) There is a significance effect on the kind of solvent on the Hydrogen Eco Booster towards to decrease the level of exhaust emissions (CO and HC) 4 stroke motorcycle, (Sig-value of CO gas=0.000 < α=0.05) and (Sig-value of HC gas=0.000 < α=0.05). (3) There is a significance effect interaction between the type of electrolyzer and the kind of solvent on the Hydrogen Eco Booster towards to decrease the level of exhaust emissions (CO and HC) 4 stroke motorcycle, (Sig-value of CO gas=0.000 < α=0.05) and (Sig-value of HC gas=0.000 < α=0.05). The lowest CO gas obtained on the Wet Cell type using the kind of solvent KOH with a decrease of 84.41%. The lowest HC gas obtained on the Dry Cell type using the kind of solvent NaOH with a decrease of 69.62%.
ANALISIS KUALITAS REPAIR WELDING CAST WHEEL ALUMINIUM MENGGUNAKAN METODE PENGELASAN OKSI-ASETILIN DENGAN PERLAKUAN PREHEATING DAN POST WELD HEAT TREATMENT Aftoni Heri Septian Pamungkas; Budi Harjanto; Indah Widiastuti
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 1 (2019)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v1i1.28280

Abstract

The aims of this research are to find out chemical composition, micro structure, the hardness level, and the strength impact of raw material and after welding using preheating and post weld heat treatment on cast wheel aluminum. Those data were analyzed using comparative descriptive method. The equipments used for measuring the chemical composition, microstructure, the hardness level, and the strength impact are as following: Spectrometer Metal Scan, Olympus Metallurgy Microscope, Vikers Hardness Tester and Charpy Tester. Based on the experiment results, it can be concluded that the chemical composition of the main constituent of cast wheel aluminum is 7,41% Si, which can be categorized in the aluminum alloy AA4343 series. The experiment results showed a decrease in the extent of the microstructure of primary Si phase after welding. Si primary phase were spread well around the surface of 12α"> -Al but the result Si after oxy-acetylene welding process with preheating and PWHT indicates that the primary Si phase is reducing so that the α-Al phase is dominating. The hardness level on the welding result decreased from raw material amounted to 103.381 kgf/mm2 be 40.112 kgf/mm2 in the welding area and 44.378 kgf/mm2 in area Heat Affected Zone (HAZ). The strength impact number on welding area showed a slight increase from the raw material areas of 0.055 joules/mm2to the welding of 0.058 joule/mm2.

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