Azra, Muhammad Azzumardi (2019) Analisis Pre-Treatment Kekasaran Permukaan Logam Alumunium 1100 Terhadap Kekuatan Geser Sambungan Al-Hdpe dengan Metode Friction Spot Welding Menggunakan Clamping Frame AISI 304 dan Kayu Jati. Sarjana thesis, Universitas Brawijaya.
Abstract
Tujuan dari penelitian ini untuk mengetahui pengaruh pre-treatment material menggunakan clamping frame yaitu AISI 304 dan kayu jati terhadap kekuatan geser sambungan las AL-HDPE dengan menggunakan proses Friction Spot Welding (FSpW).Pada penelitian ini digunakan pra-perlakuan kekasaran permukaan aluminium dengan variasi, As-received,Grinding, Acid pickling, dan perlakuan kombinasi antara grinding dan acid pickling dengan nilai heating time selama 20 detik tiap masing-masing dari pra-perlakuan material. Metode pengelasan dalam penyambungan bahan material AL-HDPE yang digunakan adalah melalui proses friction spot welding (FSpW). Hasil penelitian menunjukkan bahwa nilai tertinggi di dapat dari kombinasi pra-perlakuan antara acid picking dan grinding menghasilkan topografi permukaan aluminium menjadi lebih kasar yang menyebabkan kekuatan tarik sambungan AL-HDPE meningkat dikarenakan mechanical interlocking sambungan las Friction Spot Welding (FSpW) semakin baik. Hasil wettability pada aluminium juga menunjukkan bahwa kemampubasahan penetrasi alumunium terhadap polymer HDPE semakin baik yang ditunjukkan dari sudut kontak droplet pada permukaan alumunium yang dihasilkan. Kekuatan geser sambungna las AL-HDPE tertinggi didapatkan pada pra-perlakuan kombinasi Acid pickling dan Grinding dengan clamping frame masing-masing sebesar 3,781 MPa untuk clamping frame AISI 304 dan 8,419 Mpa untuk clamping frame kayu jati dilanjutkan dengan pra-perlakuan grinding sebesar 0,586 MPa dan 1,723 MPa, pra-perlakuan acid pickling sebesar 0,433 MPa dan 0,744 MPa, nilai terendah pada pra-perlakuan as-recived sebesar 0,154 MPa dan 0,299 MPa . Berdasarkan hasil foto SEM dan foto macro menunjukkan bahwa perlakuan yang diberikan akan mempengarui nilai mechanical interlocking yaitu penetrasi polimer cair ke dalam asperities dan penyimpangan dari permukaan logam
English Abstract
The purpose of this study was to determine the effect of pre-treatment of materials using clamping frames, namely AISI 304 and teak wood on the shear strength of AL-HDPE welded joints using the Friction Spot Welding (FSpW) process. In this study used aluminum surface roughness pre-treatment with variations , As-received, Grinding, Acid pickling, and combination treatment between grinding and acid pickling with a value of 20 seconds heating time for each of the material pre-treatment. The welding method in connecting AL-HDPE materials used is through the friction spot welding (FSpW) process. The results showed that the highest value obtained from the combination of pre-treatment between acid picking and grinding resulted in a more rough aluminum surface topography which caused the tensile strength of the AL-HDPE connection to increase due to mechanical interlocking of the weld Friction Spot Welding (FSpW) connection. The wettability results on aluminum also show that the elasticity of aluminum penetration against HDPE polymers is better as indicated by the droplet contact angle on the aluminum surface produced. The highest shear strength of AL-HDPE welds was obtained in the combination pre-treatment of Acid pickling and Grinding with clamping frames of 3,781 MPa for clamping frames AISI 304 and 8,419 Mpa for clamping the teak wood frames followed by grinding pre-treatment of 0,586 MPa and 1,723 MPa, acid pickling pre-treatment amounted to 0,433 MPa and 0,744 MPa, the lowest value in the as-recived pre-treatment was 0,154 MPa and 0,299 MPa. Based on the results of photographs of SEM and macro photographs, it shows that the treatment given will affect the value of mechanical interlocking, namely penetration of liquid polymers into asperities and deviations from the metal surface
Other obstract
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| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2019/411/051905007 |
| Uncontrolled Keywords: | Friction Spot Welding, Logam-Polimer, Kekuatan Geser, Friction Spot Welding, Metal-Polymer, Shear Strength |
| Subjects: | 600 Technology (Applied sciences) > 671 Metalworking Processes and primary metal products > 671.5 Joining and cutting of metals > 671.52 Welding |
| Divisions: | Fakultas Teknik > Teknik Mesin |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 22 Oct 2020 05:16 |
| Last Modified: | 22 Oct 2020 05:16 |
| URI: | http://repository.ub.ac.id/id/eprint/171566 |
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