40 research outputs found
Bahan Ajar Perkulihan Engine Rebuild: Panduan Lengkap Engine Rebuild Untuk Pemula
No full textBahan Ajar Perkulihan Engine Rebuild:
Panduan Lengkap Engine Rebuild Untuk Pemula
©Penulis
Muhammad Iswar
Peri Pitriadi
Muh. Iqbal M.
Ahmad
Mukhtar
"Dalam buku ini dibahas mulai dari dasar-dasar engine diesel, persiapan sebelum melakukan Rebuild, prosedur pembongkaran, teknik pemeriksaan komponen, metode perbaikan, hingga proses perakitan dan uji coba mesin."
Cetakan 1: Oktober 2025
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Harga E-Book: Rp. 50.000
Available on Gramedia Digital:
https://ebooks.gramedia.com/id/buku/penerbit/pt-revormasi-jangkar-philosophi
Effect of friction welding conditions on tensile strength and hardness of AISI 310 stainless steel joints
No full textThis study aims to determine the effect of rotational speed and forging time on tensile strength and hardness through the friction welding process of stainless steel AISI 310. The research was carried out by friction welding process by using the lathe machine with varying rotational speed (550, 1020 and 1800 rpm), forging time (25, 35, 45 seconds), and welding temperature of 1050°C ± 10°. Axial pressure was obtained through the addition of a hydraulic system to the release head of a lathe machine with a forging pressure of 123.8 N/mm2. Furthermore, the friction welding results were tested mechanically by conducting the tensile and hardness tests. The experimental results showed that the highest tensile strength of the friction welding result of 706,61 N/mm2 was obtained at 1800 rpm and 45 seconds, and this value is lower when compared with raw material (780,25 N/mm2). The highest hardness value (61.5 HRC-A) was located on the welded joint section with 550 rpm of rotational speed and 25 seconds of forging time. The hardness of the parent metal is 69.45 HRC-A. The rotational variation influences the hardness value, the higher the rotational speed will increase the hardness. The longer of forging time will decrease the hardness
PENERAPAN ALAT PENGERING DENGAN PENGONTROL SUHU UNTUK PAKAN IKAN PADA KELOMPOK TANI SAMATUNRU KECAMATAN SEGERI KABUPATEN PANGKEP
No full textPENERAPAN ALAT PENGERING DENGAN PENGONTROL SUHU UNTUK PAKANIKAN PADA KELOMPOK TANI SAMATUNRU KECAMATAN SEGERI KABUPATENPANGKE
PENGEMBANGAN DESAIN MESIN PENCAMPUR BAHAN PAKAN TERNAK
No full textThe purpose of this study is to improve the quality of mixing animal feed ingredients into more evenly distributed andmore efficient mixing time of animal feed ingredients so that quality animal feed can be obtained in a relatively shortertime compared to the mixing process which is done manually or by using a mixing machine that ever made before.The design method used is experimental research, by testing the stirring shaft rotation of 3 (kinds), namely 55 rpm, 70rpm, and 85 rpm. The volume of stirred animal feed material is 15, 16, and 17 kg with stirring time, which is 4 minutes, 5minutes and 6 minutes. From the three types of rotation variables and length of stirring time, the performance of a mixingmachine for animal feed ingredients obtained an optimization value of the process of mixing animal feed ingredientswhich gave the most optimal mixing results for the range of data studied.The results obtained showed that at 70 rpm with a duration of 5 minutes, the process of mixing animal feed ingredients asmuch as 16 kg or a production capacity of 192 kg / hour was evenly mixed. This can be used as a reference source formixing machines for animal feed. While the calculation of manufacturing costs for making 1 (one) unit mixing machinefor animal feed ingredients is Rp. 6,784,210,
MODIFIKASI MESIN PAKAN TERNAK SISTEM PENGADUK SILANG
No full textMODIFIKASI MESIN PAKAN TERNAK SISTEM PENGADUK SILAN
DESAIN MESIN PEMASTA HALUS COKELAT
No full textThe long-term goal to be achieved in this research is how to produce cocoa-based food that is processeddirectly by the cocoa farmers community. In this case, as an alternative to reduce the dependence of farmers on exportersand maintain the stability of cocoa prices. The specific target of this research is to make small scale simple machines toproduce fine pastas of cocoa. The resulting chocolate paste serves as a base for making chocolate-based or chocolateflavoredfoods. The pasta maker is designed and built by a team of researchers and students. The method used in thisresearch is the design and manufacture and testing of the brown chiller machine with the following stages: designingtools, making components such as; Stone Mill, spriral stirrer, Stone Mill casing, cocoa bean input funnel and pre-madecocoa bean paste, pasta smoothing container, and other components, subsequent stages of assembly and testing. Thepellet machine produced in this study can produce a fine brown paste equivalent to a roughness level of <20 μm
PENGARUH VARIASI PARAMETER PENGELASAN (PUTARAN DAN TEMPERATUR) TERHADAP KEKUATAN SAMBUNGAN LAS HASIL FRICTION WELDING PADA BAJA KARBON RENDAH
No full textThis study aims to analyze the influence of rotation and temperature on the strength of welded joints (tensile strength and strain stress) from the result of friction welding using low carbon steel (St.42). The Friction welding process was carried out by varying the rotation (550 rpm, 1020 rpm and 1800 rpm) and temperature (750oC, 800oC and 850oC). The results of the friction welding were then examined to find out their connections strength. The initial data of this research were obtained through the testing of tensile stress and strain stress by using the tensile testing machine and the torsion testing machine. The data obtained from the tests were analyzed by using statistical methods of regression and ANOVA. The results reveal that the maximum tensile strength value and the highest maximum strain stress occur at the rotation of 1800 rpm and the temperature of 850oC. The values were: σmax = 403.80 N/mm2 and ד max = 365.89 N/mm2. The statistical analysis reveals that there is a relationship betwen the input variable X (rotation and temperature) and output variable Y (tensile strength and strain stress
Analisis Kekasaran Mesin Bubut Konvensional dan CNC TU-2A Dengan Rpm 1500 Menggunakan Poros Aluminium
No full textConventional and CNC lathes are one of the numerical components as a production machine for manufacturing purposes that the industry relies on. To get the level of smoothness of a surface plays a very important role in the planning of a machine component, especially concerning the problem of friction, wear, resistance to fatigue as well as for surface roughness is closely related to the function of the component The manufacture of components does not merely have to have a small or smooth roughness value, but must also be in accordance with the functions and requests of the designer. TU 2A CNC lathe has a smaller roughness value (smoother) than the turning results using a conventional lathe. This is evidenced from the results of roughness testing where the smallest roughness value of the TU 2A CNC lathe is 1.27 µm and the smallest roughness value of the conventional lathe is 1.38 µm while the largest roughness value of the TU 2A CNC lathe is 2.68 µm and the surface roughness value for conventional lathes is 2.71 µm. The surface roughness class of the results of this study is in N6 to N
Effect of punch angle and punch radius on bend angle through air V-bending of sheet metal
No full textOptimizing the machining conditions on friction stir welding of aluminum alloy through design experiments
No full text
