Analisa Metalografi Pengaruh Filler Serbuk Zinc Pada Sambungan Las Titik Beda Material Antara Aluminium Dan Stainless Steel

Prakoso, Deni and , Muh Alfatih Hendrawan.,ST.,MT. (2017) Analisa Metalografi Pengaruh Filler Serbuk Zinc Pada Sambungan Las Titik Beda Material Antara Aluminium Dan Stainless Steel. Diploma thesis, Universitas Muhammadiyah Surakarta.

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Abstract

The purpose of this research is to describe the effect of zinc powder filler on the spot welding to the macro and micro welding of the weld metal, HAZ, and the parent metal. Zinc powder is placed between two parent metals with assisted locator in the form of a hole in aluminum. Metallographic testing performed is a macro and micro photo test based on ASTM E407-07 standard. The materials used are 1mm thick stainless steel, 1.2mm thick aluminum and zinc powder filler. The varied weld parameters are electric current (6000, 7000, 8000 A) and (0.2, 0.3, 0.4 sec). By macro photo test results that the greater the current and welding time, the greater the diameter of nuggets. Welding using zinc filler, diameter nugget is bigger than without filler. Furthermore, through the microscope test showed that zinc powder fused and mixed with aluminum, while the welding without filler did not occur melting. In addition it is seen that the aluminum metal welding area is larger than stainless steel, then the grain in the HAZ stainless steel area change large, while the aluminum turns into small.

Item Type:	Karya ilmiah (Diploma)
Uncontrolled Keywords:	Spot Welding, Dissimilar, Filler, HAZ, Nugget
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Fakultas Teknik > Teknik Mesin
Depositing User:	DENI PRAKOSO
Date Deposited:	31 Oct 2017 11:38
Last Modified:	31 Oct 2017 11:38
URI:	http://eprints.ums.ac.id/id/eprint/56684

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