Development of optimum process parameters and a study of the effects of surface roughness on brazing of copper

Tuan Zahari, Tuan Zaharinie and Huda, Z. and Izuan, M.F. and Abd Shukor, Mohd Hamdi (2015) Development of optimum process parameters and a study of the effects of surface roughness on brazing of copper. Applied Surface Science, 331. pp. 127-131. ISSN 0169-4332, DOI https://doi.org/10.1016/j.apsusc.2015.01.078.

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Abstract

Brazing experiments on commercially-pure copper plates, using brazing filler metal (MBF-2005), are conducted at temperatures in the range of 650-750 degrees C for time-durations in the range of 5-15 min. Shear tests for braze-joints involved use of a universal testing machine. Based on the shear-test results, a new brazing cycle has been developed that corresponds to the greatest shear strength of the braze-joint. The brazing cycle has been performed under a controlled dry-argon atmosphere in a tube furnace. Microscopic observations were made by use of both optical and electron microscopes; whereas surface roughness measurements were made by using a TRIO Surface Roughness Tester. It is found that successful brazing and good wetting can be achieved by the least voids by using an average surface roughness (R-a, value) for the base material. (C) 2015 Elsevier B.V. All rights reserved.

Item Type:	Article
Funders:	University of Malaya, Malaysia RP017-2012A
Additional Information:	Cc2ac Times Cited:0 Cited References Count:18
Uncontrolled Keywords:	Brazing process design; Brazing filler metal; Wettability; Surface roughness; Material characterization; Braze-joint strength
Subjects:	T Technology > T Technology (General) T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering
Depositing User:	Mr Jenal S
Date Deposited:	04 Sep 2015 04:30
Last Modified:	01 Oct 2021 03:43
URI:	http://eprints.um.edu.my/id/eprint/13953

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