The type of research is research and development using a 4-D development model. (Define, Design, Development and Disseminate). The aim of this research is to find out the validity and practicality of video-based learning media tutorials on the material CNC Milling Simulator For Android in the FKIP UNSRI Engineering Educational Study Program. The subject of the research is a student of FKIP UNSR…
This research aims to find out what factors influence the practicum learning outcomes of Mechanical Engineering Education students in CAD/CAM courses. The type of research used is descriptive with a quantitative approach. The population and sample in this research are active students of the Mechanical Engineering Education Study Program class of 2022 who are taking the CAD/CAM Practicum course,…
Pack carburizing is a heat treatment process which is used to harden the steel surface by using carbon content as a hardness enhancer. In this study using ST 40 steel as a test specimen, this steel is included in the low carbon steel. This study aims to see the effect of variations in gelam wood charcoal and coconut shell as carbon used in the pack carburizing process and to see the effect of v…
This research is based on students' learning difficulties in basic CNC courses. Therefore, the purpose of this study is (1) to find out what are the learning difficulties of students in basic CNC courses in the Mechanical Engineering Education Study Program, Sriwijaya University, (2) to describe student efforts in overcoming learning difficulties in basic CNC courses in the Mechanical Engineeri…
This study aims to determine the application of Occupational Safety and Health (K3) of class XI students during lathe practice in the Workshop of the Department of Mechanical Engineering SMK Negeri 2 Palembang. This type of research is a quantitative research with a descriptive approach, a population of 99 students, who are class XI students of Mechanical engineering SMK Negeri 2 Palembang. Sam…
Penelitian ini merupakan penelitian quasi eksperiment (eksperimen semu) dengan pendekatan kuantitatif dan desain penelitian tipe one group pretest-posttest atau tes awal – tes akhir kelompok tunggal dengan sampel dipilih secara acak menggunakan teknik cluster random sampling. Teknik pengumpulan data yang digunakan yaitu observasi dan pretest-posttest. Hasil penelitian menunjukkan bahwa model …
Pack carburizing is a heat treatment process using carbon content as an element to increase the mechanical properties of steel which is used to harden the steel surface. This research uses low carbon steel as a test specimen, the steel used is ST 42 steel. The aim of this research is to see whether there is an effect of variations in water content from the lowest to the highest, the carbon used…
Penelitian ini bertujuan untuk mengetahui minat belajar mahasiswa pendidikan teknik mesin pada mata kuliah gambar teknik. Populasi pada penelitian ini adalah mahasiswa pendidikan teknik mesin angkatan 2020 Fakultas Keguruan dan Ilmu Pendidikan Universitas Sriwijaya. Data yang digunakan pada penelitian ini adalah data pokok berupa penyebaran angket kepada mahasiswa pendidikan teknik mesin angkat…
Each heat treatment process on steel will experience a change in the structure of the material which will open the corrosion gap. Corrosion is a major problem that often occurs, some of the damage that occurs to metals is caused by the environment in which the metal is exposed. Damage due to this corrosion if left too long will cause damage which will cause a decrease in the efficiency of its u…
This study used an experimental method which included the corrosion rate process in conventional lathe using soursop leaf extract as a cooling medium, then testing was carried out using 66% sulfuric acid and soaked for 72 hours with the weight loss method, the turning process was carried out on steel ST 37, ST 41 and ST 60 using variations of soursop leaf extract by 33% and 25%. The results sho…
Pembubutan facing merupakan salah satu dari banyak macam pembubutan. Tujuan penelitian ini adalah untuk mengetahui kekasaran permukaan benda kerja dan mengetahui hasil laju korosi setelah mengetahui kekasaran permukaan benda kerja. Pembubutan facing menggunakan variasi kedalaman pemakanan 0.08 mm, 0.05 mm dan 0.1 mm. Kedalaman pemakanan menjadi salah satu faktor dalam hasil kekasaran benda kerj…
Penelitian ini menggunakan metode eksperimen yang meliputi proses pengelasan titik (Resistance Spot Welding), kemudian pengujian tarik.tujuan dari peneltian ini adalah untuk mengetahui nilai kekuatan tarik yang paling tinggi diantara hasil pengelasan titik yang dilakukan. Dari hasil penelitian diketahui bahwa semua spesimen hasil pengelasan titik yang telah dilakukan uji tarik, mempunyai nilai …
This study uses an experimental method. which includes the turning process using pending media from guava leaf extract, then carried out with a corrosive testing process. The concentration of cooling liquid guava leaf extract used was 25% and 33%. This turning process used 6 specimens consisting of ST 37, ST 41, and ST 60 steel. The purpose of this study was to determine the effect of the coola…
Medium carbon steel has a carbon content of about 0.42% to 0.60%. In use, carbon steel is being used as a component of automobile axles, crankshafts, boiler rails. The purpose of this study was to determine the effect of temperature variations on the hardness of medium carbon steel. The method used in this research is the experimental method. Specimens are heated using a heating furnace with a …
This type of research is associative research with a quantitative approach which aims to determine the influence of the teacher's role and workshop facilities on the learning interests of students majoring in mechanical engineering at SMK Pembangunan YPT Palembang. This research was conducted at SMK Pembangunan YPT Palembang Campus B in June, even semester of the 2021/2022 academic year. The po…
Penelitian ini adalah proses perlakuan panas (heat treatment) dengan menggunakan dua perlakuan, pack carburizing lalu dilanjutkan proses quenching. Pack carburizing merupakan salah satu jenis perlakuan panas dengan cara menambahkan karbon pada permukaan baja dan dipanaskan sampai mencapai batas austenit. Serbuk Karbon yang digunakan dalam penelitian ini berasal dari arang kayu jati. lalu peneli…
This study aims to describe equipment planning, describe the organizational structure of the workshop, find out the implementation of equipment management, describe the supervision of equipment management in the workshop of the Welding Engineering expertise program at SMK Negeri 1 Suak Tapeh. This research is a qualitative descriptive research. The location of the research was carried out at SM…
Steel material is a type of material that is often used, especially in the industrial sector because it has tough strength, and is economical. One of the steel materials is AISI 1045 steel which is a medium carbon steel group, in order to increase the hardness value of the steel it is given heat treatment at a temperature of 900oC and performs fast immersion with a cooling medium. The media giv…
Entrepreneurship is a process of creating something that has added value and economic value. interest is an urge to do something because there is a desire to achieve a certain goal, while Metal Casting Engineering is a manufacturing process that uses molten metal and molds to produce shapes that are close to the final geometric shape of the finished shape. This research is a quantitative descri…
Penelitian ini bertuuan untuk mengetahui pelaksaan dan kelayakan K3 di dalam bengkel teknik kendaraan ringan dan sepeda motor di SMK Negeri 1 Belitang Madang Raya. Penelitian ini merupakan penelitian deskriptif kualitatif. Sumber informasi atau informan dari penelitian ini adalah siswa kelas XII bidang TKR dan TBSM, guru pengajar, kepala jurusan atau kepala bengkel dan juga wakil kepala sekola …
This study aims to determine the effect of knowledge of occupational safety and health subjects (OHS) and learning outcomes on work readiness of students majoring in motorcycle business engineering (MMBE) at State Vocational High School 1 Air Kumbang. This research is a descriptive study with a quantitative approach. The subjects of this study were 35 students in grades X and XII majoring in mo…
MATA KULIAH PRAKTIK CNC SALAH SATU MK YANG WAJIB DIKUASAI OLEH MAHASISWA PROGRAM STUDI PENDIDKAN TEKNIK MESIN FKIP UNSRI. FAKTOR RENDAHNYA HASIL BELAJAR MAHASISWA DIKARENAKAN KESULITAN DALAM MENGIMAJIASIKAN PERGERAKAN PAHAT BUBUT DAN BERDAMPAK DALAM PEMBUATAN PROGRAM CNC. SELAIN ITU KETERBATASAN FASILITAS MESIN CNC DAN SUMBER BELAJAR YANG MENDUKUNG DAN BISA DIPELAJARI MAHASISWA SECARA MANDIRI. …
BAJA ST 41 ADALAH BAJA KARBON RENDAH YANG DISEBUT JUGA BAJA LUNAK, BAJA INI MEMILIKI KANDUNGAN KARBON SEBESAR 0,08% - 0,20%. MATERIAL INI BANYAK SEKALI DIGUNAKAN UNTUK PEMBUATAN BAJA BATANGAN, TANGKI, PERKAPALAN, JEMBATAN, MENARA, PESAWAT ANGKAT DAN DALAM PERMESINAN. TUJUAN PENELITIAN INI UNTUK MENGETAHUI PENGARUH SUHU DALAM PROSES HARDENING PADA STRUKTUR MIKRO PERMUKAAN BAJA KARBON RENDAH DAN …
Common brass is an alloy of copper and zinc. Common brass hardness is very important in the world of machinery, with quenching treatment will affect the mechanical properties of common brass. This study aims to determine the effect of the quenching process using oil coolers (viscosity variations) on the mechanical properties (hardness) of common brass metal. The quenching process was carried ou…
Baja ST 30 memiliki kandungan karbon kurang dari 0,30 % sehingga memiliki sifat yang lunak dan kekuatan yang lemah dibandingkan baja karbon menengah dan baja karbon tinggi. Quenching merupakan suatu proses pengerasaan pada baja yang dilakukan dengan cara di panaskan mencapai batas austenite. Tujuan penelitian untuk mengetahui pengaruh media pendingin magnesium sulfat pada proses quencing terhad…
Inhibitor yaitu suatu zat yang jika ditambahkan dalam jumlah sedikit dapat menghambat laju korosi. Penelitian ini menggunakan inhibitor daun rambutan yang diberikan pada spesimen baja AISI 1045 dengan cara diberi perlakuan quenching dengan suhu 850 oC agar inhibitorn ya bisa terserap kedalam spesimen dengan baik. Tujuan dari penelitian ini yaitu untuk mengetahui pengaruh inhibitor daun rambutan…
Quenching merupakan proses perlakuan panas dimana logam akan dipanaskan hingga berada di suhu austenit dengan pendinginan secara cepat. Penelitian ini bertujuan untuk mengetahui pengaruh media pendingin senyawa NIkel, terhadap laju korosi baja ST 37 pada proses quenching. Penelitian ini menggunakan metode eksperimen, terdapat empat spesimen yang diuji dengan melalui tahapan quenching yang sama …
Penelitian ini bertujuan untuk mengetahui perbandingan kekuatan tarik, dan struktur mikro pada material baja karbon sedang AISI 1050 setelah dilakukan pengelasan GMAW dengan kampuh X dan arus listrik yang digunakan 95 A dan 105 A. Metode penelitian yang digunakan adalah penelitian eksperimen, berdasarkan perlakuan yang diberikan oleh peneliti yaitu berupa pengelasan dengan menggunakan las GMAW …
This research uses an experimental method which includes a turning process by varying the type of tool and the concentration of papaya leaf extract coolant, then corrosion testing is carried out. The variety of chisel types used is HSS Bohler and Assab with papaya leaf extract coolant with concentrations of 25%, 33.3% and 50%. This turning process uses 6 ST 41 steel specimens consisting of 3 sp…
The development of the industrial world, especially in the material sector, has its own problems, especially the hardness of brass material. The hardness of the brass material needs to be increased which when used continuously will experience friction which results in wear and tear. One of the ways to increase hardness is by means of heat treatment by adding holding time and cooling media. This…