Artikel Jurnal :: Kembali

Artikel Jurnal :: Kembali

Effect of the base metal surface roughness on the bag-8 spreading behaviour

Mohammad Hamdi, Tadashi Ariga (Faculty of Engineering, Universitas Indonesia, 2011)

 Abstrak

This research was done to investigate influence of the base metal surface roughness on the BAg-8 spreading behavior and to get a proper surface roughness number for large area brazing. The filler metal was melted at 830o C for 15 minutes on a S50C surface for with various roughness levels. After solidified, the spreading area was observed and characterized in macro and micro scale. The results show that physically the filler spreading consists of two kinds of spreading forms: true and apparent filler spreading with composition of the both being almost same; 77% Ag and 23% Cu. For some roughness numbers, irregularities in uniformity of the heating and cooling process on the filler and dissolving of contaminant into the molten filler caused the true spreading that tend to separate became several parts and tend to flow out from initial placement. Increasing of the surface roughness tends to increase the capillarity effect and to decrease imbalance in the surface tension. Optimum surface roughness was obtained at Rz = 0.92. At this number, the ratio, as well as fitness of the true spreading with initial condition, was at the maximum. During the application process, this condition is predicted as being able to prevent or avoid weaknesses in the joint, thereby increasing the joint strength and its appearance quality.

 Metadata

Jenis Koleksi : Artikel Jurnal
No. Panggil : UI-IJTECH 2:3 (2011)
Entri utama-Nama orang :
Subjek :
Penerbitan : Depok: Faculty of Engineering, Universitas Indonesia, 2011
Sumber Pengatalogan : LibUI eng rda
ISSN : 20869614
Majalah/Jurnal : International Journal of Technology
Volume : Vol. 2, No. 3, July 2011: Hal. 242-247
Tipe Konten : text
Tipe Media : unmediated
Tipe Carrier : volume
Akses Elektronik : https://doi.org/10.14716/ijtech.v2i3.73
Institusi Pemilik : Universitas Indonesia
Lokasi : Perpustakaan UI, Lantai 4 R. Koleksi Jurnal
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No. Panggil No. Barkod Ketersediaan
UI-IJTECH 2:3 (2011) 08-23-63280980 TERSEDIA
Ulasan:
Tidak ada ulasan pada koleksi ini: 9999920529771
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