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Effect of Electrode Patterning on Melting Behavior and Electrode Degradation in Resistance Spot Welding of A6014-T4 Alloy
A6014-T4 합금 소재의 저항 점 용접 시 용융 거동 및 전극 열화에 미치는 전극 패터닝 효과
Hyun-Uk Jun, Jae-Hun Kim, Jae Won Kim, Eun-Kyung Lee, Yang-Do Kim, Changwook Ji
전현욱, 김재훈, 김재원, 이은경, 김양도, 지창욱
Korean J. Met. Mater. 2020;58(12):863-874.   Published online 2020 Dec 4
DOI: https://doi.org/10.3365/KJMM.2020.58.12.863

Abstract
In this study, the effects of electrode surface design on the resistance spot weldability and degradation of the electrode following resistance spot welding (RSW) of aluminum 6014-T4 alloy were investigated. A new patterning method that can be produced through repetitive pressurization was applied to the electrode, producing a lattice-like pattern..... More

                        
Effect of Shielding Gases on the Wire Arc Additive Manufacturability of 5 Cr – 4 Mo Tool Steel for Die Casting Mold Making
Jae-Deuk Kim, Jae Won Kim, Joo Yong Cheon, Yang-Do Kim, Changwook Ji
Korean J. Met. Mater. 2020;58(12):852-862.   Published online 2020 Dec 4
DOI: https://doi.org/10.3365/KJMM.2020.58.12.852

Abstract
Generally, molds are fabricated by the machining of massive billets of tool steels, such as AISI4140 or H13, but it has drawbacks, such as a large material loss and long-delivery time. The Wire-Arc Additive Manufacturing (WAAM) process could be an alternative fabrication method. It has the advantages of less material..... More

                        
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