Pemodelan dan Analisa Reduksi Getaran Pemasangan DVA (Dynamic Vibration Absorber) Pada Grooving Tool

Hanifam, Hildan (2022) Pemodelan dan Analisa Reduksi Getaran Pemasangan DVA (Dynamic Vibration Absorber) Pada Grooving Tool. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dynamic Vibration Absorber dapat memaksimalkan kinerja mesin atau peralatan mesin. DVA bekerja dengan mengurangi getaran yang dihasilkan selama proses permesinan, dan benda kerja yang dihasilkan selama proses permesinan juga dimaksimalkan. Contoh getaran selama permesinan adalah proses grooving. Grooving adalah proses untuk membentuk sebuah alur pada suatu benda kerja dengan menggunakan mesin bubut. Dalam proses pembuatan alur oleh mesin grooving tersebut, Gerakan pembuatan alur oleh alat potong dapat menimbulkan getaran. Salah satu bagian yang terkena getaran berlebihan adalah grooving holder. Getaran yang berlebihan pada grooving holder dapat menyebabkan kerusakan pada bagian bagian mesin dan mengakibatkan kualitas yang buruk pada benda kerja akibat proses grooving tersebut. Oleh karena itu untuk meningkatkan kinerja mesin dan kualitas hasil grooving maka digunakan Dynamic Vibration Absorber pada grooving holder. Dalam penelitian ini dilakukan simulasi menggunakan software Ansys static structural, modal, dan harmonic response workbench mengenai rancangan grooving holder dengan Dynamic Vibration Absorber yang mampu mereduksi getaran ketika proses grooving. Simulasi dilakukan dengan desain grooving holder dan grooving blade dari katalog Korloy Tech dengan tipe body MGHER 2525-6 dan insert MGGN 600-0.2 Lalu untuk DVA x memiliki desain dengan frekuensi natural DVA yang bervariasi 369.57 Hz, 394.76 Hz, dan 492.79 Hz yang mana nilai tersebut relatif sama dengan range nilai frekuensi operasional dari grooving tool yang berada pada 362 Hz- 450 Hz. Frekuensi operasional yang berbeda digunakan untuk menentukan respon reduksi maksimal DVA, dimana variasi yang beragam didaptakan dari tiga variasi kecepatan potong 100 m/min, 150 m/min, 200 m/min dan dua kedalaman potong yakni 0.5 mm dan 1 mm. Dari simulasi yang telah dilakukan, didapatkan respon reduksi getaran terbesar pada parameter pemotongan (P4) dengan reduksi sebesar 95.2 % (Radial) dan 96.3 (Tangensial), dengan pemasangan DVA panjang 10 mm (L1) pada kedalaman pahat 0.5 mm dan kecepatan potong 100 m/min ===================================================================================================== Dynamic Vibration Absorber can maximize the performance of machines or machine tools. DVA works by reducing the vibration generated during the machining process, and the workpiece generated during the machining process is also maximized. An example of vibration during machining is the grooving process. Grooving is the process of forming a groove on a workpiece using a lathe. In the process of making grooves by the grooving machine, the movement of making grooves by cutting tools can cause vibrations. One part that is affected by excessive vibration is the grooving holder. Excessive vibration in the grooving holder can cause damage to machine parts and result in poor quality of the workpiece due to the grooving process. Therefore, to improve engine performance and the quality of the grooving results, a Dynamic Vibration Absorber is used in the grooving holder. In this study, simulations were carried out using Ansys static structural, modal, and harmonic response workbench software regarding the design of a grooving holder with a Dynamic Vibration Absorber that is able to reduce vibrations during the grooving process. Simulations were carried out with the grooving xii holder and grooving blade designs from the Korloy Tech catalog with body type MGHER 2525-6 and inserts MGGN 600-0.2. Then for DVA it has a design with DVA natural frequencies that vary 369.57 Hz, 394.76 Hz, and 492.79 Hz, which are these values. relatively the same as the operating frequency range of the grooving tool which is at 362 Hz-450 Hz. Different operational frequencies were used to determine the maximum reduction response of DVA, where various variations were obtained from three variations of cutting speeds of 100 m/min, 150 m/min, 200 m/min and two depths of cut, namely 0.5 mm and 1 mm. From the simulations that have been carried out, the largest vibration reduction response was obtained in the cutting parameters (P4) with a reduction of 95.2% (Radial) and 96.3 (Tangential), with the installation of a 10 mm long DVA (L1) at a tool depth of 0.5 mm and a cutting speed of 100 m. /min

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: grooving tool, DVA, reduksi getaran, dan respon getaran
Subjects: T Technology > TJ Mechanical engineering and machinery
T Technology > TJ Mechanical engineering and machinery > TJ1185 Metal-cutting--Problems, exercises, etc.
T Technology > TJ Mechanical engineering and machinery > TJ1186 Metal-cutting tools.
T Technology > TJ Mechanical engineering and machinery > TJ1186.B5 Metal-cutting tools--Design and construction.
Divisions: Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21201-(S1) Undergraduate Thesis
Depositing User: Mochammad Hildan Hanifam
Date Deposited: 15 Feb 2022 01:56
Last Modified: 15 Feb 2022 01:56
URI: https://repository.its.ac.id/id/eprint/93654

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