JTRM (Jurnal Teknologi dan Rekayasa Manufaktur)

Development of the Concept for an Omnidirection Wheeled Robot for Moving Goods Made from Extruded Aluminum Profiles

2024-11-15T12:50:46+07:00

This research examines how concept development was carried out to design an omnidirectional wheeled robot base made from extruded aluminum profiles used for moving goods. Concept design goes through a series of stages, that is: identifying problems, determining the function structure, looking for alternative solutions, building concept variations, assessing concept variations and determining the selected concept. After going through all these stages, it was concluded that an omnidirectional robot base can be divided into 2 sub-functions, namely: base frame and electrical energy converter. These two sub-functions have 6 parameters that can be varied, such as: various frame shapes, type of frame material, type of frame bar shape, type of frame connection, type of wheel, type of motor. Alternative solutions can be sought for each parameter, combined and assessed to obtain a variation of the selected concept that meets the list of requirements.

Machining Processes Set-Up Planning of Ragum 125 Politeknik Manufaktur Bandung Fixed Jaw and Movement Jaw

2024-11-15T12:50:46+07:00

Ragum-125 Polman, is one among other different products produced by Polman Bandung which functions as a clamping device. The Ragum-125 Polman is assembled from several components where the fixed jaw and moving jaw are its main components. For the time being, the production process of the Ragum-125 Polman, especially the fixed and moving jaws, still uses many conventional machines tools and requires many jigs (locating devices) and fixtures (fixing devices). Consequently, the processing time is long. The production process requires fourteen (14) set-ups and many stages of the process from one machine to other machines, which is prone to process errors. CNC machine tools can do many machining operations in a single set-up and can minimize process errors because their movements are numerically controlled. However, to take advantage of CNC machine tools, good set-up planning is needed so that the process can be conducted according to the specifications. This research discusses the planning set-up and choosing the machine tools for machining the fixed and moving jaw of Ragum-125 Polman. It consists of four stages they are, grouping the feature according to the tool approach direction (TAD), selection the set-up datum, set-up formation, and determination the machine tools and sorting the machining operation in every set-up. The result from this research produced 19 rules for guidance the set-up planning processes and yield 2 set-ups for fix jaw and 1 set-up for moving jaw with Mitsubishi CNC Horizontal Milling Machine H4Bn and the drilling machine lodiflex Caser F40 C5 as the machine tools which reduce the number of set-ups from 14 set-up to 3 set-up in machining processes of fix jaws and moving jaws of Ragum-125 Polman.

Design of a Chip Maker and Calcium Oxalate Reduction Machine for Porang Tubers

2024-11-15T12:50:45+07:00

The main constraint in porang processing are porang chips thickness uniformity and high calcium oxalate content. There are three stages of porang processing are washing, slicing, and boiling. The machine designed in this research combining the function of three machines : washing machine, slicer, and boiler. First, porang roots is placed into the hopper, then porang is cleaned using rotating washing brush with the translational movement of the screw conveyor. After that, porang is sliced and boiled in NaCl solution to reduce its calcium oxalate content. This research uses VDI 2222 design methodology including planning, conceptualizing, designing, and finishing. The design and validation process of critical components is carried out using CAE (Computer Aided Engineering) software. After going through the design process, a machine design was produced with a production capacity of 500 kg/hour.

Pembuatan Pilar Support Mesin 3D Concrete Printing menggunakan Konstruksi Cremona dengan Material Besi Profil Siku

2024-11-15T12:50:45+07:00

This research uses VDI 2222 design methodology including planning, conceptualizing, designing, and finishing. The design and validation process of critical components is carried out using CAE (Computer Aided Engineering) software. After going through the design process, a machine design was produced with a production capacity of 500 kg/hour.

Alat Pengukur Kualitas Bahan Bakar Diesel Dan Kinerja Filter Elemen

2024-11-15T12:50:44+07:00

Diesel engines used in many sectors require clean fuel quality to achieve good engine performance. To maintain fuel cleanliness, a filtering process is carried out using a filter element. Measuring fuel quality before and after filtration is important information for users to make decisions to reduce maintenance costs and overall operational costs. From the existing problems, researchers aim to develop a tool that functions to identify the cleanliness quality of diesel fuel in accordance with ISO 18/16/13 cleanliness standards and the performance of the filter elements used in working condition or not. This module uses a PLC and HMI for the display and a pressure transmitter for the measuring module which aims to be a ready-to-use tool for industrial and mining conditions. This module will help users as an initial system that issues quality information from filtered diesel fuel and estimates the performance of the filter used