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Journal : Jurnal Ilmiah Teknik (JUIT)

DESIGN DAN PEMBUATAN BRACKET ASSY BULLDOZER Abdul Muchlis; Sandy Suryady; Ahcmad Risa Harfit
Jurnal Ilmiah Teknik Vol. 3 No. 1 (2024): Januari : Jurnal Ilmiah Teknik
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/juit.v3i1.1137

Abstract

In this century, the industrial sector is a very important sector to support the national economy. The industrial sector contributed very high so that it succeeded in bringing Indonesia to the 85th rank out of 131 countries in the world's manufacturing industry, the industrial sector was growing very rapidly accompanied by increasing positive growth. Bracket assy is a component or frame structure on a bulldozer that uses SS400 and ST37 type steel metal material, which means that the component is very strong and does not break easily when exposed to heavy loads. Bracket assy is a product that has gone through various fabrication processes. The function of the bracket assy is as a handle for the hydraulic system pipe and also the pedestal of the body or engine cover, the bracket assy is located above the front of the car chassis which is positioned facing up. The process of making the bracket assy, namely, the selection of materials used in the process of making the Bracket Assy, namely Steel SS400 and ST 37, Gas Cutting Machines, Bending Machines, and Welding Machines. In the cutting process of the Gas Cutting Machine, the workpiece is cut. Next is the Bending Machine process where the workpiece is bent. Furthermore, the welding process of the workpiece is welded in 2 stages, namely the first tack welding and full welding / Fillet Weld, then Quality Control is carried out to check whether the product is ready to be distributed, the product is qualified into two types, namely GOOD for products that have passed Quality control and NOT GOOD for products that do not pass Quality Control.
STUDI TERMAL PADA SEGMEN CETAKAN CROWN PADA MESIN CURING DALAM PROSES PRODUKSI BAN MOBIL DI PT. ELANG PERDANA TYRE INDUSTRY Christofel Jarot Yudaputranto; Sandy Suryady
Jurnal Ilmiah Teknik Vol. 4 No. 1 (2025): Januari : Jurnal Ilmiah Teknik
Publisher : Asosiasi Dosen Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56127/juit.v4i1.1839

Abstract

The curing process is a stage in car tire molding carried out under high temperature and pressure. One of the key components in this process is the crown mold segment, which functions to shape the tread pattern on the tire. This study aims to analyze the heat distribution in the crown mold segment using Solidworks software, focusing on material specifications, heat distribution patterns, and simulation parameters affecting the results. The material used is Steel AISI 1020. The simulation results indicate an even heat distribution with an initial temperature of 453 K, convection ranging from 179.933°C to 179.967°C on the side area, and 179.916°C to 179.950°C on the tread pattern. Heat transfer rates were recorded as 96,323.28 W through conduction, 898.452 W through convection, and 2.56 W through radiation. Key parameters influencing the simulation include the initial material temperature (453 K), convection coefficient (10 W/(m²·K)), radiation emissivity (0.3), and ambient temperature (300 K).