Optimasi Parameter Pengecatan Body Mobil Dengan Robot Rotary Bell Spray Menggunakan Metode Taguchi

Elnando, Muhammad Dwiva (2025) Optimasi Parameter Pengecatan Body Mobil Dengan Robot Rotary Bell Spray Menggunakan Metode Taguchi. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kualitas kendaraan dapat dinilai dari seberapa bagus hasil cat yang produsen mobil tersebut berikan. Salah satu faktor yang dapat meningkatkan kualitas cat kendaraan adalah dengan meningkatkan nilai kilau dari kendaraan tersebut. Nilai kilau cat bergantung pada parameter robot pengecatan yang berefek pada hasil cat seperti nilai LW (Long Wave) atau gelombang tidak beraturan yang terbentuk dari hasil cat yang menyerupai kulit jeruk, nilai DOI (Distinctness of Image) atau kejelasan pantulan bayangan pada panel mobil, serta ketebalan dari cat itu sendiri. Parameter robot yang dilakukan perubahan pada penelitian ini adalah flowrate cat yang keluar dari robot, kecepatan rotary bell sprayer, serta laju aliran kembangan cat robot yang disebut wide & small pattern. Pada penelitian ini metode Taguchi dengan orthogonal array L25 digunakan untuk mencari kombinasi terbaik dari tiap parameter yang dapat menghasilkan nilai respon LW sekecil mungkin, DOI setinggi mungkin, dan ketebalan cat sesuai dengan standar minimum. Dengan bantuan aplikasi MiniTab, didapatkan bahwa semua parameter tersebut dapat memengaruhi respon yang didapat. Hasil prediksi respon yang paling optimal adalah flowrate = 600 cc/min, kecepatan rotary = 28.000 RPM, wide pattern = 300 L/min, dan small pattern = 200 L/min. Nilai rata-rata respon yang didapatkan adalah LW =2,6, DOI = 89,7, dan ketebalan cat = 39,7 μm
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The visual quality of a vehicle can be judged by how good the paint job is. One factor that can improve the quality of vehicle paint is to increase the gloss value of the paint. The gloss value of the paint depends on the parameters of the painting robot which affect the paint results, such as the LW (Long Wave) or irregular surface waves formed from the paint that resembles an orange peel, the DOI (Distinctness of Image) or the sharpness of the reflection projected from the car panel, as well as the thickness of the paint itself. The robot parameters that were altered in this research were the flow rate of paint coming out of the robot, the rotary speed of the bell sprayer, and the robot's paint shape/pattern which is called wide & small pattern. In this research, the Taguchi method with the L25 orthogonal array was used to find the best combination of each parameter that can produce the smallest possible LW value, the highest possible DOI, and the paint thickness closest to the minimum standards. Using the MiniTab software, it was found that all of these parameters can influence the response obtained. The most optimal results predicted by the software for all the parameters are flow rate = 600 cc/min, rotary speed = 28,000 RPM, wide pattern = 300 L/min, and small pattern = 200 L/min. The average response values obtained were LW = 2.6, DOI = 89.7, and paint thickness = 39.7 µm

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	optimasi, metode Taguchi, pengecatan mobil, kualitas cat mobil, nilai penampilan mobil, LW (Long Wave/orange peel effect), DOI (Distinctness of Image), ketebalan cat, optimization, Taguchi Method, painting body, paint quality, appearance value, LW (Long Wave/orange peel effect), DOI (Distinctness of Image), Paint Thickness
Subjects:	T Technology > TS Manufactures > TS156 Quality Control. QFD. Taguchi methods (Quality control)
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Mechanical Engineering > 21101-(S2) Master Thesis
Depositing User:	Elnando Muhammad Dwiva
Date Deposited:	11 Feb 2025 06:56
Last Modified:	11 Feb 2025 06:56
URI:	http://repository.its.ac.id/id/eprint/118631

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