Estimation of lobe curve with material strength in resistance projection welding

Ha, Sangun; Murugan, Siva Prasad; Marimuthu, Karuppasamy Pandian; Park, Yeong-Do; Lee, Hyungyil

doi:10.1016/j.jmatprotec.2018.07.037

Cited by 12 publications

(5 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, no detrimental effect on weld quality was observed due to the high rise in temperature during the welding. Even the welded cell electrical test results were also satisfactory compared to the unwelded cell. The projection welding approach can be used to produce 4 nuggets simultaneously [22]. However, additional work is required for developing projected tabs before welding which may also have a detrimental effect on weld quality due to thinning of the sheet as a result of projection.…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Utilising a novel multi-electrode approach for improving micro-resistance spot welding productivity for electric-mobility battery interconnects

Kumar

Ramakrishnan

Panchapakesan

et al. 2023

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

The micro-resistance spot welding is widely used for low-to-medium-volume applications due to its low cost, especially for cylindrical Lithium-ion cell-based modules. Using typical microresistance spot welding electrodes in a series configuration, two nuggets/welds are created in a single welding operation. As it is a contact joining process, productivity is limited. This paper developed a novel approach to enhance the productivity of micro-resistance spot welding, where four nuggets were produced instead of two nuggets in a single operation. The criticalto-quality criteria, including joint strength, microstructure, electrical resistance and temperature rise at joints, were demonstrated by comparing the existing and proposed approaches. A reduction in cycle time by up to 57% can be achieved by adopting the proposed approach while maintaining the weld quality.

show abstract

Section: Resultsmentioning

confidence: 99%

“…The projection welding approach can be used to produce 4 nuggets simultaneously [22]. However, additional work is required for developing projected tabs before welding which may also have a detrimental effect on weld quality due to thinning of the sheet as a result of projection.…”

Section: Resultsmentioning

confidence: 99%

Utilising a novel multi-electrode approach for improving micro-resistance spot welding productivity for electric-mobility battery interconnects

Kumar

Ramakrishnan

Panchapakesan

et al. 2023

Science and Technology of Welding and Joining

View full text Add to dashboard Cite

show abstract

“…para que seja ocasionado a fusão e consecutivamente a união requerida, conforme projeto do produto (Huang & Tseng, 2011). A execução do processo de soldagem por projeção baseia-se nos seguintes tempos: tempo de subida de pré-pressão dos eletrodos, tempo de subida da corrente de solda, tempo de soldagem sob a pressão dos eletrodos e tempo de pós-pressão da peça entre os eletrodos (Ha et al, 2019). O ciclo de soldagem conforme Branco (2019) é lustrado na Erro!…”

Section: Referencial Teóricounclassified

Análise da liga de capa de eletrodo de cobre cromo zirconio utiliza-dos em processos de soldagem por resistência elétrica por projeção

Lemos,

Cruz Junior,

Varasquim

et al. 2024

OLEL

View full text Add to dashboard Cite

A busca pela eficiência de suas operações é um dos maiores objetivos da indústria, portanto os processos devem ser compatíveis o suficiente para obtenção de um bom resultado, principalmente no que diz respeito a recursos e consumíveis. A finalidade do estudo foi analisar o comportamento da liga de Cobre-Cromo-Zircônio em uma capa de eletrodo utilizada no processo de soldagem por projeção (RPW), na indústria automotiva. Com mais de 300 componentes e 4000 a 7000 pontos soldados, a soldagem por resistência elétrica é crucial para a montagem de veículos. Foram fabricados dois eletrodos sendo um superior e um interior para realização dos testes, foi utilizada uma máquina de solda estacionária convencional de 60Hz para efetuar a soldagem de 1000 corpos de prova. A análise de dureza superficial do eletrodo inferior foi feita antes e após a soldagem. Foram realizadas as análises utilizando um microscópio eletrônico de varredura para avaliar mudanças no comportamento da liga ao longo da seção transversal. O estudo contribui para melhorar a eficiência e a qualidade dos processos de soldagem na indústria automotiva.

show abstract

“…Therefore, it is perfectly applied to copper and copper alloys resistance welding, due to the generally high conductivity of these materials [11]. Recently, many studies on RPW have been reported, including its physical mechanism [10][11][12], parameters optimization [13][14][15][16][17][18][19][20][21][22], microstructure characterization [20][21][22][23][24][25], and numerical process simulation [16,26]. Wehle et al [10] revealed that projection welding can be accounted for in the solid-state welding process, where the intimate weld interface is formed under plastic deformation at elevated temperatures and surface diffusion which enables re-arrangement of the interface to perfectly fit.…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Properties of Phosphorus Bronze/Brass Joints Produced by Resistance Projection Welding

Lai

Zhang²,

Sheng

et al. 2023

Coatings

View full text Add to dashboard Cite

In this work, we fabricated lap joints between embossed projection phosphorus bronze and flat brass through resistance projection welding (RPW). The experimental results indicated that the bronze projection moves into the softer brass without being deformed during the welding process. The tensile shear loads of the joint reached a maximum value of 273.6 N at a welding current of 5.5 kA. Under this circumstance, a reaction layer, including a columnar crystal solidification layer and a diffusion layer, is formed at the interface beside the boundary of bronze. The EDS line scan shows an elemental transition diffusion layer of about 1.5 μm between the H62 brass columnar crystal and XYK-6 phosphorus bronze. The fracture occurred on the XYK-6 side, passing through the bump instead of the welding interface, resulting in intactness of the welding interface. The results revealed that resistance projection welding is an effective method for welding copper alloys, suggesting the bright prospects of this technology in welding electrical parts.

show abstract

Estimation of lobe curve with material strength in resistance projection welding

Cited by 12 publications

References 8 publications

Utilising a novel multi-electrode approach for improving micro-resistance spot welding productivity for electric-mobility battery interconnects

Utilising a novel multi-electrode approach for improving micro-resistance spot welding productivity for electric-mobility battery interconnects

Análise da liga de capa de eletrodo de cobre cromo zirconio utiliza-dos em processos de soldagem por resistência elétrica por projeção

Microstructure and Properties of Phosphorus Bronze/Brass Joints Produced by Resistance Projection Welding

Contact Info

Product

Resources

About