Agung, Muhammad Arizky Rahmadillah Margo (2016) Optimasi Multirespon Gaya Tekan, Torsi, Kekasaran Permukaan Dan Keausan Tepi Pahat Pada Penggurdian Baja Ems-45 Dengan Minimum Quantity Lubrication (Mql). Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.
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Abstract
Proses gurdi merupakan proses pemesinan yang sering
dilakukan pada industri manufaktur, seperti industri otomotif dan
pesawat. Penentuan kombinasi variabel proses yang tidak tepat
pada proses gurdi akan menghasilkan gaya tekan, torsi, kekasaran
permukaan dan tingkat keausan pahat yang tinggi. Oleh karena itu
perlu dilakukan pengaturan variabel-variabel proses gurdi dengan
teknik minimum quantity lubrication (MQL) yang tepat, sehingga
dapat meminimalkan gaya tekan, torsi, kekasaran permukaan dan
keausan tepi pahat.
Suatu eksperimen telah dilakukan pada proses penggurdian
material baja EMS-45 dengan MQL. Rancangan percobaan yang
digunakan berupa matriks ortogonal L18 (21 x 33) dan replikasi dua
kali. Variabel atau faktor yang divariasikan adalah jenis pahat,
sudut ujung pahat, kecepatan makan dan kecepatan spindel.
Variasi jenis pahat memiliki dua level, sedangkan ketiga variabel
yang lain memiliki tiga level. Optimasi dilakukan dengan
menggunakan metode Taguchi-grey relational analysis (GRA).
Berdasarkan hasil eksperimen, variabel proses yang
memberikan persen kontribusi terbesar untuk mengurangi variansi
total dari respon gaya tekan, torsi, kekasaran permukaan dan
keausan pahat secara serentak adalah variabel proses gerak
makan sebesar 89,92%, diikuti oleh variabel proses kecepatan
potong sebesar 0,54%. Variabel proses jenis pahat dan sudut
Nama mahasiswa : Muhammad Arizky Rahmadillah M.A
NRP : 2113106017
Jurusan : Teknik Mesin FTI-ITS
Dosen pembimbing : Ir. Bobby O. P. S., M.Sc., Ph.D. ujung pahat memberikan kontribusi sebesar 0%. Pengaturan yang
tepat untuk menurunkan respon secara serentak adalah jenis pahat
menggunakan HSS-M2, sudut ujung pahat diatur pada 102°, gerak
makan diatur pada 0,1 mm/rev dan kecepatan potong diatur pada
25 m/menit
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Drilling process is one of machining process which is often
done in the manufacturing industry, such as automotive and
aircraft industry. An improper combination of the variables drilling
process will produce a higher thrust force, torque, surface
roughness, and the wear of the cutting tools. Therefore, an
adjustment of the variables of drilling process with a proper
minimum quantity lubrication (MQL) technique is needed, to
minimize the thrust force, torque, surface roughness, and the flank
wear of cutting tools.
An experiment has been performed on the drilling process of
steel EMS-45 material with MQL technique. The layout of the
experiment used is L18 orthogonal matrix (21 x 33) with twice
replication. The variables or factors that varied is the type of tools,
the point angle of tools, feeding speed, and spindle speed. The
variations in the type of tools has two levels, while the other three
variables has three levels. The optimization is done by using the
Taguchi-grey relational analysis (GRA) method.
Based on the result of the experiment, the process variable
that provide the greatest percent of contribution to reduce the total
variance of the thrust force, torque, surface roughness, and tool
wear response simultaneously is the feeding speed process variable
at 89,92%, followed by the cutting speed process variable at
0,54%. The type of tools and point angle of tools process variable
Student name : Muhammad Arizky Rahmadillah M.A
NRP : 2113106017
Department : Teknik Mesin FTI-ITS
Advisor : Ir. Bobby O. P. S., M.Sc., Ph.D. contributes 0%. The exact setting to reduce the response
simultaneously is the by using HSS-M2 type of tool, using 102° for
point angle of tools, using 0,1 mm/rev for feeding speed, and using
25 m/min for cutting speed.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSM 621.952 Agu o |
| Uncontrolled Keywords: | gaya tekan, GRA, MQL, , keausan tepi pahat, kekasaran permukaan, Taguchi, torsi |
| Subjects: | T Technology > TJ Mechanical engineering and machinery > TJ1186 Metal-cutting tools. |
| Divisions: | Faculty of Industrial Technology > Mechanical Engineering > 21201-(S1) Undergraduate Thesis |
| Depositing User: | EKO BUDI RAHARJO |
| Date Deposited: | 23 Jul 2020 00:08 |
| Last Modified: | 23 Jul 2020 00:08 |
| URI: | http://repository.its.ac.id/id/eprint/76461 |
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