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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
 1 
Search results for , issue "vol 1, no 4 (2019)" : 8 Documents clear
PENGARUH VARIASI PENAMBAHAN KADAR AIR DENGAN BAHAN PENGIKAT BENTONIT TERHADAP KARAKTERISTIK PASIR CETAK DAN CACAT POROSITAS HASIL PENGECORAN LOGAM PADUAN Al-Si Fajar Rizki Saputra; Budi Harjanto; Nyenyep Sriwardani
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 4 (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.v2i4.42460

Abstract

The purposes of this research was to learns (1) the effect of adding moisture content to the permeability of sand casting; (2) the effect of adding moisture content to the compressive strength of sand casting; and (3) the effect of adding moisture content to porosity defects in casting results. This research is conducted at Manufacturing Polytechnic, Ceper, Klaten. The method that used is pre-experimental design with design one-shot case study. The independent variable in this research are variations of moisture content of 4%, 6%, and 8%, with the dependent variable are permeability and compressive strength of sand casting, and porosity defect of Al-Si alloy cast. The permeability test by using permeability meter, compressive strength test by using universal strength machine¸ and porosity defect test of cast result on qualitative with visual observation and quantitative with calculation of porosity percentage.  The results of  the adding of moisture content  of 4%, 6%, and 8% in the sand casting showed that: (1) The higher the addition of water measure on sand casting decrease the permeability value. The highest permeability value in the addition of 4% water measure is 103.67 cm3/min, while the lowest in the addition of 8% water measure is 83.00 cm3/min; (2) The higher water content in the printed sand further decreases the value of its compressive strength. The lowest compressive strength value occurred at 8% water measure increase of 39.00 KN/m2, while the highest value of compressive strength was obtained at 4% water measure addition 47.56 KN/m2; (3) The higher water measure of sand casting will result in a higher percentage of porosity defects on the casting results. The lowest percentage of porosity defect was obtained by adding 4% water measure is 1.56% from total volume, while the highest was 8% water measure is 3.06% from total volume.
ANALISIS KESIAPAN MENGHADAPI DUNIA KERJA SETELAH PRAKTIK INDUSTRI MAHASISWA PENDIDIKAN TEKNIK MESIN FKIP UNS Addin Nur Kasanah; Muhammad Akhyar; Ngatou Rohman
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 4 (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.v2i4.42467

Abstract

The aims of this study are (1) to describing the work readiness of Mechanical Engineering Education students of Sebelas Maret University in dealing with the industrial sector after carrying out industrial training in terms of each indicator; (2) to describing the highest and lowest indicators of work readiness of industrial sector after industrial training owned by Mechanical Engineering Education students of Sebelas Maret University. The population in this study were all of Mechanical Engineering Education students who had carried out industrial training. The selected samples were 99 students of Mechanical Engineering Education. Instrument validity and reliability tests were carried out on 30 UNS Mechanical Engineering Education students who had carried out industry training and were chosen randomly. The results of the instrument validity test resulted in 51 valid statement items and 16 invalid statement items of 67 instrument items. Instrument reliability test used IBM SPSS Statistics version 21, this test resulted that the reliability value of 0.935. The results of the study revealed that work readiness of Mechanical Engineering Education students of Sebelas Maret University  in terms of the overall indicators in the medium category. The highest category of work readiness indicator of Mechanical Engineering Education students is on emotional indicator with a value of 20,7%. The lowest category of work readiness indicator of Mechanical Engineering Education students is on skill indicator with a value of 20,7%.
PENGARUH VARIASI BESAR SUDUT KAMPUH V TUNGGAL TERHADAP STRUKTUR MIKRO, KEKERASAN, DAN KEKUATAN TARIK MATERIAL BAJA SS400 DENGAN METODE PENGELASAN SMAW muhammad farid anshori; Suharno Suharno; Yuyun Estriyanto
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 4 (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.v2i4.42468

Abstract

The aim of this research is to determine the effect of the groove angle to the microstructure, hardness, and tensile strength on SS400 steel alloys before (raw material) and after welding using the Shielded Metal Arc Welding (SMAW) method.This research used experimental method with descriptive comparative data analysis. The tool used for microstructure test is Olympus Metallurgical Microscope, using Vickers Hardness Tester for hardness test, and using the Universal Testing Machine for tensile test.Based on the data, it could be concluded that the results of the microstructure test showed an increase in pearlite structure after welding. In raw material, ferrite structures are seen evenly but on welding, results using the SMAW method with a 50⁰, 60⁰, and 70⁰ weld groove angles indicated that ferrite is reduced in each specimen, so the pearlite structure is very dominating. The number of hardness and tensile strength on the welding results indicate a difference in the level of hardness and tensile strength. Specimens with a 70o groove angle have a higher hardness level of 276 VHN when compared to 50⁰ groove angle specimens of 248 VHN and 60o of 255 VHN. Specimens with a 70⁰ groove angle have a higher tensile strength which is 432.51 MPa when compared to the 50o groove angle specimens of 407.56 MPa and 60⁰ at 425.69 MPa. The tensile strength test results in raw material amounted to 401.94 MPa. This study shows that welding with variations of groove angle changes the microstructure and affects the hardness and tensile strength of SS400 steel alloys.
PENCAPAIAN KOMPETENSI SISWA KELAS X PROGRAM KEAHLIAN TEKNIK OTOMOTIF SMK BHINNEKA KARYA SURAKARTA PADA MATA PELAJARAN KOMPETENSI DASAR OTOMOTIF TAHUN PELAJARAN 2015/2016 Rizky Noor Aditama; Husin Bugis; Ngatou Rohman
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 4 (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.v2i4.42458

Abstract

The objectives of this research are to investigate: (1) the Basic Competency Standard of the Automotive Expertise Program in Grade X of Bhinneka Karya Vocational High School of Surakarta in academic year 2015/2016; (2) the students’ learning result; and (3) the students’ ways of thinking to improve their learning result through the application of the 2013 curriculum. This research used the descriptive qualitative method, which described its objects of research holistically based on the reality in the field and which aimed at describing the facts being studied systematically and accurately. The data sources of the research were the teachers and the students in Grade X TO B of the Automotive Expertise Program of Bhinneka Karya Vocational High School of Surakarta. Its data were collected through observation, in-depth interview, and documentation. They were analyzed by using the interactive model of analysis comprising data collection, data reduction, data display, and conclusion drawing or verification. The attainment of competency particularly in the Automotive Basic Competency subject matter of the students of Bhinneka Karya Vocational High School of Surakarta can be improved through the application of  2013 curriculum. The application of 2013 curriculum is more efficient in assessing the students’ attitude, knowledge, skill, and spirit aspects as indicated by the results of their final test of the second semester in which following the application of the 2013 curriculum, their learning achievement increased by 22.74% from 36.36% to 59.1%. 
PENGARUH KADAR INHIBITOR EKSTRAK KULIT BUAH RAMBUTAN DAN KONSENTRASI LARUTAN HCL TERHADAP LAJU KOROSI BAJA ST 37 muhammad salafudin bukhori; Ranto Ranto; Indah Widiastuti
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 4 (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.v2i4.42469

Abstract

Industrial manufacture of steel with pickling process method uses HCl solution as a cleaner. Besides as a cleaner, HCl solution can also causes a corrosion on steel product from pickling process. That corrosion can be controlled by corrosion inhibitor from organic material. Organic material consist of tannin compound that can react by forming a complex compound on the steel surface and protect it from corrosion attack. Organic material in this research is rambutan peel extract used as inhibitor corrosion with the values of 0.5%, 1.0%, 1.5%, and 2.0% in HCl solution with the values of 0.1 N, 0.5 N, and 1.0 N. St 37 steel is used as test sample in this research. The aims of this research are to investigate the effect of amount of rambutan peel extract and concentration of HCl solution toward the corrosion rate of St 37 steel. Weight loss method is used to calculate the corrosion rate and Two Way Anova is used as data analysis technique. The result of this research shows that there is an effect of the amount of rambutan peel extract as an inhibitor and concentration of HCl solution toward the corrosion rate of St 37 steel. Corrosion rate has the lowest value in the variation of 2.0% inhibitor and 0.1 N HCl with the highest efficiency value as 63.13%.
KAJI EKSPERIMENTAL PENGGUNAAN KAMPAS REM KOMPOSIT SERBUK BAMBU PADA SEPEDA MOTOR YAMAHA JUPITER Z Ichsan Rusdianto; Ranto Ranto; Budi Harjanto
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 4 (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.v2i4.46920

Abstract

This study aims to (1) investigate how the value of the brake lining composite from bamboo powder when tested directly on the motorcycle, (2) investigate the comparative rate of wear of the brake lining composite from bamboo powder towards brake lining Indoparts brand. This research was conducted at the Education Building Engineering, the Faculty of Teacher Training and Education, Sebelas Maret University. The Composition of  the brake lining composite from bamboo powder  contains bamboo powder, Aluminium powder (Al) and Magnesium Oxide (MgO), the constituent matrix composites is Epoxy resin form which is tested using the test as far as 1500 km. In this study the sampling technique used purposive sampling. The results of this research are (1) The wear rate of the brake lining natural fiber composites from bamboo powder specimen for every 500 km are equal to 0.095 mm  in the inside part and the outside part is 0.123 mm for every 500 km, (2) The wear rate of the brake natural fiber from bamboo powder for every kilometer are equal to 0,000246 mm/km and the wear rate of brake lining  from Indoparts brand are equal to 0,000496 mm/km.
PENERAPAN RAMBU K3 PADA BENGKEL PEMESINAN PROGRAM STUDI PENDIDIKAN TEKNIK MESIN SEBAGAI SARANA MENINGKATKAN KESADARAN MAHASISWA TERHADAP K3 Rafli Rizky Arief; Yuyun Estriyanto; Herman Saputro
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 4 (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.v2i4.42459

Abstract

The purpose of this research is to improve student awareness on health and safety, of students UNS, by implementing health and safety signs. This research is a institutional action research. The research was conducted in two cycles, with each cycle comprising planning, implementation, observation,  and reflection. The subject is students of Mechanical Engineering Education of 126  UNS  student. The technique of collecting data are observation, questionaire and documentation, and the analysing  data are using analytical techniques descriptive and comparative, and critical analysis. The results showed that through the implementation of health and safety signs, can increase students awareness attitudes towards implementing the health and safety in machining workshop. The increasing of students awareness qccurred from pre-cycle to cycle I was done by setting up the health and safety sign in each machining workshop and machine. In cycle I the was an increase of student awareness, although it was not optimal yet. In cycle II the implementation was done by socialize the lecturers and the lectures assistant about the importance of obeying health and safety sign, in order to be delivered to the student in addition. In cyle II the student awarenes increasing rapidly. The conclusion of this research is the implementation of health and safety signs on the machining workshop in mechanical engineering education can increase student awareness of the importance of occupational health and safety.
PENGEMBANGAN AUTO CANCEL SEIN BERBASIS MIKROKONTROLER PADA SEPEDA MOTOR Adhi Satria Laksana; Husin Bugis; Ngatou Rohman
Nozel : Jurnal Pendididikan Teknik Mesin Vol 1, No 4 (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.v2i4.42470

Abstract

The aims of this research are: (1) to develop of auto cancel sein based on microcontroller for motorcycle; (2) to analyze the performance of system auto cancel sein based on microcontroller on a motorcycle. Development of system auto cancel sein based on microcontroller was done in 3 stages: (1) needs analysis; (2) design system hardware; (3) design system software. the auto cancel sein was applied on Honda Supra X motorcycle Tested with U-Turn test. The results of this study are: (1) the auto cancel sein composed three sensors (speed sensor, steer position sensor, and tilt sensor) used to read the input data of. Microcontroller used for data processing. the actuator (output) used 2 channel relay module; (2) the application on Honda Supra X motorcycle showed that auto cancel sein can work properly and correctly for speed of 10 km/h, 20 km/h, 30 km/h, 40 km/h, 50 km/h.

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