Studi Ekperimental Analisa Reduksi Respon Getaran Pada Turning Tool Akibat Variasi Massa DVA Dalam Proses Turning Pada Mesin Bubut

Samudro, Athalaric Haikal (2022) Studi Ekperimental Analisa Reduksi Respon Getaran Pada Turning Tool Akibat Variasi Massa DVA Dalam Proses Turning Pada Mesin Bubut. Undergraduate thesis, Intitut Teknologi Sepuluh Nopember.

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Abstract

Pada proses turning ada bebebrapa faktor yang membuat kualitas hasil turning kurang optimal, salah satu faktornya yaitu getaran yang berlebih. Dan getaran berlebih mampu dikurangi dengan cara menggunakan turning tool yang memiliki kualitas material yang bagus dengan nilai kekakuan yang tinggi. Namun turning tools yang memiliki kualitas material yang bagus dengan nilai kekakuan yang tinggi sangat mahal, tetapi hal tersebut bisa diatasi dengan cara memodifikasi turnig tool tersebut dengan menambahkan Dynamic Vibration Absorber (DVA) pada caity yang terletak dibawah insert karbida. DVA sendiri berfungsi se- bagai peredam getaran yang terjadi karena adanya kontak gesekan antara turning tool dengan speimen. Dan pada penelitian tugas akhir ini mengenai studi eksperi- mental analisa reduksi respon getaran pada customized turning tool yang telah dimodifikasi dengan penambahan DVA ber- bentuk silinder. Pada eksperimen ini menggunakan dua turning tools (regular turning tool dan customized turning tools). Untuk dimensi dan material Customized Turning tools dan regular turn- ing tool yakni sama menggunakan material besi AISI 1040 yang memiliki dimensi panjang 150 mm, lebar 18 mm, dan tinggi 18 mm. DVA terletak pada bagian tengah head tool turning dengan dimensi Panjang 30 mm dan diameter luar 10 mm. Jenis karet DVA yang digunakan yakni polyurethane (PU). Didapatkan nilai persentase reduksi respon getaran paling op- timal pada X-axis (axial) yakni pada customized turning tool dengan DVA PU solid disaat kecepetan spindle 160 rpm dengan depth of cut 0,2 yakni sebesar 64%. Didapatkan nilai persentase reduksi respon getaran paling optimal pada X-axis (axial) yakni pada customized turning tool dengan DVA PU solid disaat ke- cepetan spindle 160 rpm dengan depth of cut 0,2 yakni sebesar 67%. Penambahan variasi kecepatan spindle dan variasi depth of cut terhadap reduksi respon getaran cenderung menurunkan per- sentase reduksi respon getaran pada X-axis (axial) dan Y-axis (tangensial). ======================================================================================================= In the turning process there are several factors that make the quality of the turning results less than optimal, one of the factors is excessive vibration. And excessive vibration can be reduced by using a turning tool that has good material quality with a high stiffness value. However, turning tools that have good material quality with high stiffness values are very expensive, but this can be overcome by modifying the turnig tool by adding a Dynamic Vibration Absorber (DVA) to the caity located under the carbide insert. DVA itself functions as a vibration damper that occurs due to frictional contact between the turning tool and the specimen. And in this final project, it is an experimental study on the analysis of vibration response reduction on a customized turn-ing tool that has been modified with the addition of a cylindrical DVA. In this experiment, two turning tools are used (regular turning tool and customized turning tool). For dimensions and materials, Customized Turning tools and regular turning tools are the same as using AISI 1040 iron material which has dimensions of 150 mm long, 18 mm wide, and 18 mm high. The DVA is located in the center of the tool turning head with dimensions of 30 mm in length and 10 mm in outer diameter. The type of DVA rubber used is polyu-rethane (PU). The percentage value of the most optimal vibration response reduction on the X-axis (axial), namely on a customized turning

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Getaran, Multi Layer Passive Damping, Dynamic Vibration Absorber, Turning Tool, Frekuensi, Amplitudo, Re�duksi Getaran, Vibration, Multi Layer Passive Damping, Dy�namic Vibration Absorber, Turning Tool, Frequency, Amplitude, Vibration Reduction.
Subjects: Q Science > QA Mathematics > QA935 Vibration
T Technology > TJ Mechanical engineering and machinery > TJ1225 Milling machines numerically controlled
T Technology > TJ Mechanical engineering and machinery > TJ230 Machine design
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User: Athalaric Haikal Samudro
Date Deposited: 19 Feb 2022 21:29
Last Modified: 19 Feb 2022 21:29
URI: https://repository.its.ac.id/id/eprint/93988

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