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10 items by relevance
1 Conference paper

Electrical parameters of resistance welding machines in connection with welding

Malberg, M; Bay, Niels

Proceed. 8th Int. Conf. on Joining of Materials, Jom-8, Elsinore, Denmark, May 1997 — 1997, pp. 250-256

Year: 1997

Language: English

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2 Report

Measurement of Dynamic Resistance in Resistance Spot Welding

Wu, Pei; Zhang, Wenqi; Bay, Niels

Through years, the dynamic resistance across the electrodes has been used for weld quality estimation and contact resistance measurement. However, the previous methods of determining the dynamic resistance were mostly based on measuring the voltage and current on the secondary side

Year: 2005

Language: English

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3 Journal article

Measurement of Dynamic Resistance in Resistance Spot Welding

Wu, Pei; Lu, J.; Zhang, Wenqi; Bay, Niels

China Welding — 2007, Volume 16, Issue 4, pp. 42-46

The conventional methods of determining the dynamic resistance were mostly done by measuring the voltage and current at secondary side of transformer in resistance welding machines, in which the measuring set-up normally interferes with the movement of electrode, and the measuring precision

Year: 2007

Language: English

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4 Conference paper

Thermomechanical Modelling of Resistance Welding

Bay, Niels; Zhang, Wenqi

Computational Methods for Coupled Problems in Science and Engineering II - Coupled Problems — 2007, pp. 162-165

The present paper describes a generic programme for analysis, optimization and development of resistance spot and projection welding. The programme includes an electrical model determining electric current and voltage distribution as well as heat generation, a thermal model calculating heat

Year: 2007

Language: English

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5 Conference paper

Influence of Geometric Parameters on Weld Quality in Resistance Projection Welding

Kristensen, L; Zhang, Wenqi; Bay, Niels

Proceed. Jom-9 — 1999, pp. 112-117

Year: 1999

Language: English

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6 Journal article

An Experimental Study of the Electrical Contact Resistance in Resistance Welding

Song, Quanfeng; Zhang, Wenqi; Bay, Niels

Welding Journal — 2005, Volume 84, pp. 73-76

Electrical contact resistance is of critical importance in resistance welding. In this article, the contact resistance is experimentally investigated for welding mild steel, stainless steel, and aluminum to themselves. A parametric study was carried out on a Gleeble® machine, investigating

Year: 2005

Language: English

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7 Conference paper

Numerical methods in simulation of resistance welding

Nielsen, Chris Valentin; Martins, Paulo A.F.; Zhang, Wenqi; Bay, Niels Oluf

Proceedings of the Vi International Conference on Coupled Problems in Science and Engineering — 2015, pp. 322-333

Finite element simulation of resistance welding requires coupling betweenmechanical, thermal and electrical models. This paper presents the numerical models and theircouplings that are utilized in the computer program SORPAS. A mechanical model based onthe irreducible flow formulation is utilized

Year: 2015

Language: English

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8 Conference paper

Resistance Welding of Free Cutting Steel

Jensen, S. S; Bay, Niels

Proceed. Int. Conf. Joining of Materials 5 — 1991, pp. 349-356

Year: 1991

Language: English

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9 Journal article

Weld nugget formation in resistance spot welding of new lightweight sandwich material

Sagüés Tanco, J.; Nielsen, Chris Valentin; Chergui, Azeddine; Zhang, Wenqi; Bay, Niels Oluf

International Journal of Advanced Manufacturing Technology — 2015, Volume 80, Issue 5, pp. 1137-1147

Weldability of a new lightweight sandwich material, LITECOR®, by resistance spot welding is analyzed by experiments and numerical simulations. The spot welding process is accommodated by a first pulse squeezing out the non-conductive polymer core of the sandwich material locally to allow

Year: 2015

Language: English

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10 Journal article

Characterization of Electrical Properties of Resistance Welding Machines

Wu, Pei; Shao, Y.; Zhang, Wenqi; Bay, Niels

China Welding — 2008, Volume 17, Issue 3, pp. 24-29

Year: 2008

Language: English

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