Injection molding is most frequently used manufacturing processes in the plastics industry. In the plastic injection molding process the cooling channel has an important role for the cooling process of the product. The good cooling channel is indicated by the ability to absorb heat from the product quickly and uniformly on the each side of the product. This study compared straight and conformal cooling channels with diameters 8 mm to know it is effects on pattern of temperature distribution in the mold and cooling effectiveness of the product inside mold using Fluent software. Analysis of virtual model images shown that those with conformal cooling channels can predict significant heat absorption compared with straight cooling channel.
The amount of plastic waste each year will increase by 10% every year which is a problem for a country. Therefore, proper processing of plastic waste needs to be done. Before being processed into plastic waste processing, it is necessary to have a chopping process using a plastic chopping machine. The plastic chopping machine has an important component, namely the chopping knife. Before carrying out the knife manufacturing process, it is necessary to validate the design of the blade that is used with its loading. Model simulation using software is one way to quickly validate the model. This study aims to determine the effect of loading variations on stress, strain, deformation and safety factors of the model. The use of ANSYS R17.2 software is used to analyze the chopping machine knife model with a variation of 5kg / hour, 10kg / hour, 20kg / hour and 50kg / hour capacities. The result is that the stress, strain and deformation parameters have an increase in value with increasing loading variations. The greatest values of stress, strain and deformation are in the variation of 50kg / hour respectively 64.995 Pa; 336.76 and 56,358 x 10-11mm. The value of the safety factor for all variations of loading has a value of 15. The value of the safety factor means that the design of the plastic chopping knife is safe to use up to a loading of 50kg / hour
Allen key merupakan alat bantu untuk mengencangkan, melonggarkan dan melepas baut bekepala segi enam. Alat bantu harus mampu menahan beban dan menahan kontak. Simulasi pemodelan allen key dilakukan untuk mengetahui pengaruh deformasi dan angka keamanan dari sebuah desain. Software ANSYS R19.2 membantu untuk menganalisis pemodelan. Parameter deformasi, regangan, tegangan mengalami kenaikan disetiap variasi pembebanan dengan nilai terbesar pada variasi beban 325N nilai deformasi sekitar 8,9135mm, Regangan sebesar 2,2 x 10-3mm, tegangannya sebesar 4,54 x 102Mpa. Angka keamanan setiap variasi pembebanan adalah 15, nilai tersebut menunjukkan desain, variasi yang diberikan dan jenis material aman untuk digunakan sampai pembebanan 325N.
Propeller is part of a key component in fishing boat propulsion. Propeller can provide momentum to the fluid which can be a thrust on the ship. However, The failure of the propeller found prematurely. The failure of the propeller maybe because of overload on the propeller model so the fatigue life of the propeller becomes low. On the other hand, the rapid development of technology can simulate a design model to look for failures that occur. Finite Element Analysis is one of the designer solutions to determine the age of failure of a model and failure-prone areas in a model. This study uses propeller model data from fishing boat with engine 24HP in Dumai City TPI that always fail prematurely. The material used is copper alloy. While the drawing model uses Autodesk Inventor and Finite Element Analysis simulation using ANSYS R17.2 software with the number of model nodes is 51108 and the number of elements of the model is 26268. The results obtained from this study are Von Mises stress on the simulation model that is equal to 613.33 MPa to 0.01164 MPa. While the deformation value due to the effect of loading on the model is 5,3657 mm to 0 mm. These results affect the age of fatigue (fatigue life) on the model with the highest value 109 and the lowest 0. The results of the fatigue life value on the model affect the results of the level of damage and the safety number of the model with successive values of 1032 to 1 and 15 to 0.32446. The conclusion of the result is the propeller will fail prematurely.
One of the agricultural technologies that have evolved recently is the weeding machine. This device was developed to aid farmers in the weed-control procedure. The engine frame is one of the primary elements of the weed wacker. The most crucial component of agricultural equipment is the frame or chassis since it serves as the foundation for mounting other parts. To examine the stress and strength of the frame, this study models the frame of a power weeder machine utilizing finite element analysis using the SolidWorks 2022 program. A total load of 120 N is applied to the AISI 316L used for the frame. The analysis's findings indicate that the maximum von Mises stress value is about 2.51 107N/m2, the greatest deformation is 0.556 mm, and the safety factor is 6.8. With AISI 316L material, the frame design of the power weeder machine in this study is safe to endure up to 140 N.
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