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All Journal Rotasi JURNAL TEKNIK MESIN Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Civil Engineering Journal

Sumar Hadi Suryo

Departement Of Mechanical Engineering, Universitas Diponegoro, Jl. Prof. Sudarto, SH., Tembalang, Semarang, Indonesia 50275

Author-ID : 395443

Civil Engineering, Building, Construction & Architecture Computer Science & IT Engineering Mechanical Engineering

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Analysis of Rake Angle Effect to Stress Distribution on Excavator Bucket Teeth Using Finite Element Method Suryo, Sumar Hadi; Bayuseno, A. P.; Jamari, J.; Wahyudi, A. Imam
Civil Engineering Journal Vol 3, No 12 (2017): December
Publisher : Salehan Institute of Higher Education

Excavator is mostly used for mining and construction. This heavy equipment, widely known as a backhoe, is a digging machine commonly used for dredging the mining materials, digging and leveling the soil, dredging the river, removing the road and demolition. Excavator has bucket teeth, component that frequently undergoes a change. The replacement of bucket teeth is performed due to its low usage time and many failure experiences such as wear, bend, crack and facture during the use. To prevent the occurrence of the failures, a structural analysis on bucket teeth is necessarily conducted. The analysis was conducted to find the stress distribution on bucket teeth from the rake angle effect during the excavation. The analysis was performed using finite element method by static loading and two-dimensional modeling to determine digging and resistive force in bucket teeth. Based on the analysis, it was obtained the stress distribution and maximum value of von misses occurring in the bucket teeth from the rake angle effect. The maximum stress, obtained from the analysis results, was then compared to the allowable stress of the bucket teeth material. The results showed that the materials used were in safe limits and had small potential for experiencing failure as well.

Simulation of Excavator Bucket Pressuring Through Finite Element Method Suryo, Sumar Hadi; Bayuseno, Athanasius Priharyoto; Jamari, J.; Ramadhan, Gilang
Civil Engineering Journal Vol 4, No 3 (2018): March
Publisher : Salehan Institute of Higher Education

Excavator bucket tool is one of the most important parts of an excavator. It is made of steel mixture. It is commonly equipped with protruding teeth on its cutting side to breakdown hard materials and also to prevent dryness and damage of the bucket. Excavator bucket tooth must have supporting geometrical shape to penetrate and to endure the digging process on the ground, gravels, stones, or any other abrasive field. It is because of the fieldâs natural characteristic when the bucket tool grinds the material. Mixed iron is common to be used as excavator bucket toolâs material because it is easy to get and economic. High hardness value is also needed on the surface that transports hard material such as mining equipment. Therefore, an accurate analysis should be done to determine the suitable material on this field. Design and analysis were done by using Computer-Aided Engineering (CAE) Abaqus 6.10 application to get the maximum tension as the result of loading. Analysis process to get the tension was done by adding 8285.06 N weight forces in static condition with the angle of 32o to the horizon. From the analysis it could be known that maximum tension experienced by excavator bucket tooth is 209.3 MPa, and it is still below the Maximum Equivalent von Mises stress so the design could be categorized as safe.

Hardness Optimization of Heat Treatment Process of Bucket Teeth Excavator Suryo, Sumar Hadi; Adi Widyanto, Susilo; Paryanto, Paryanto; Mansuri, Aly Syariati
Civil Engineering Journal Vol 4, No 2 (2018): February
Publisher : Salehan Institute of Higher Education

Excavator is heavy equipment that usually used in construction and mining works. Bucket teeth which are located in the tip of bucket excavator are used for digging works. They are easily damaged by direct contact with the media. One of the material used in bucket teeth excavator is mild carbon steel that has carbon content between 0.33%-0.5%. However, the hardness value of this material is not yet meets the standard of bucket teeth excavator so the optimum hardness value based on its heat treatment should be known. Besides that, its tensile, impact strength, and micro structure in optimum condition will also know. Optimization method was done through Taguchi experimental design with L9 orthogonal and ANOVA (Analysis of Variance). Factors or parameters in this research were heating temperature, holding time, quenching media, and tempering temperature. In this experiment, nine specimens of mild carbon steel were tested by different heating temperatures (850oC, 875oC, 900oC), different holding times (60, 90, and 120 minutes), different quenching medias (oil, water, and salt water), and different tempering temperatures (250oC, 450oC, 650oC). Calculation of Taguchi method and confirmation experiment showed that the optimum parameters of hardness are 875oC heating temperature, 60 minutes holding time, water quenching media, and 250oC tempering temperature. Meanwhile, ANOVA test showed a result that the four factors had an effect on the bucket teeth excavator hardness.

Co-Authors Aidil Rahman Ariq Fathurrahman Atanasius Priharyoto Bayuseno Awan Raswan Awan Raswan Bambang Yunianto Bambang Yunianto Bambang Yunianto Bambang Yunianto Bayuseno, A. P. Daffa Shaquille Dwi Basuki Wibowo Dwiki Putratama Nugraha Freditya Siswanto Gilang Ramadhan Gostsa Khusnun Naufal Gostsa Khusnun Naufal Harto, Harto Hosea Sutan M. Hutagalung Ismoyo Haryanto J. Jamari Juniar Putra Indra Kiswara Mansuri, Aly Syariati Mochammad Ariyanto Muchammad Muchammad Muchammad Muchammad Muhammad Ali Sholihun Muhammad Mahdy Faiz Muroj Maulana Cahyo Oktavian, Dicky Paryanto Paryanto Rizky Riyadi Hidayat Sastra, Rachmat Suryadi Susilo Adi Widyanto Wahyudi, A. Imam Willy Sutanto

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