Resistance spot welding of galvanized steel: Part I. Material variations and process modifications

1986 ◽  
Vol 17 (4) ◽  
pp. 879-885 ◽  
Author(s):  
S. A. Gedeon ◽  
T. W. Eagar
Keyword(s):  
Resistance Spot Welding ◽  
Spot Welding ◽  
Steel Part ◽  
Galvanized Steel ◽  
Resistance Spot

Application of Current Gain Compensation Method in Quality Control of Resistance Spot Welding of Galvanized Steel Plate

2010 ◽  
Vol 26-28 ◽  
pp. 401-404
Author(s):  
Bin Wan ◽  
Xin Bin Hu ◽  
Shi Jie Dong ◽  
Zhong Hou Liu ◽  
Mao Zhang ◽  
...  
Keyword(s):  
Resistance Spot Welding ◽  
Spot Welding ◽  
Steel Plate ◽  
Control Method ◽  
Galvanized Steel ◽  
Current Gain ◽  
Current Step ◽  
Resistance Spot ◽  
Welding Spot ◽  
Gain Compensation

In this paper, the control method of current gain compensation for welding is adopted. Precise current gain curves (i.e., current step curves) in resistance spot welding of galvanized steel plated are discussed and drawn. By analysis of failure of electrode cap, it indicates that new current step curve ensure that qualified welding spot nugget dimension is acquired. The welding spot is high in strength, stable and reliable in quality. It is superior to original current step curve.

Surface lubrication influence on electrode degradation during resistance spot welding of hot dip galvanized steel sheets

2015 ◽  
Vol 216 ◽  
pp. 339-347 ◽  
Author(s):  
M. Spitz ◽  
M. Fleischanderl ◽  
R. Sierlinger ◽  
M. Reischauer ◽  
F. Perndorfer ◽  
...  
Keyword(s):  
Resistance Spot Welding ◽  
Spot Welding ◽  
Galvanized Steel ◽  
Resistance Spot ◽  
Steel Sheets ◽  
Electrode Degradation

Resistance spot welding of Mg to electro-galvanized steel with hot-dip galvanized steel interlayer

2016 ◽  
Vol 236 ◽  
pp. 114-122 ◽  
Author(s):  
Yueqiao Feng ◽  
Yang Li ◽  
Zhen Luo ◽  
Zhanxiang Ling ◽  
Zhengming Wang
Keyword(s):  
Resistance Spot Welding ◽  
Spot Welding ◽  
Galvanized Steel ◽  
Resistance Spot

scholarly journals OPTIMIZATION OF THE RESISTANCE SPOT WELDING PROCESS OF SECC-AF AND SGCC GALVANIZED STEEL SHEET USING THE TAGUCHI METHOD

SINERGI ◽  
2021 ◽  
Vol 25 (3) ◽  
pp. 319
Author(s):  
Sukarman Sukarman ◽  
Amri Abdulah ◽  
Apang Djafar Shieddieque ◽  
Nana Rahdiana ◽  
Khoirudin Khoirudin
Keyword(s):  
Shear Strength ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Welding Current ◽  
Galvanized Steel ◽  
Welding Time ◽  
Tensile Shear Strength ◽  
Tensile Shear ◽  
Resistance Spot ◽  
Steel Sheets

This article present the optimization work describes out to joint the dissimilar galvanized steel of SECC-AF (JIS G 3313) and SGCC (JIS G 3302) material. A zinc coating on the surfaces of the galvanized steel sheets will decrease the weldability characteristic of the material. This study used dissimilar galvanised steel sheets to obtain the highest tensile shear strength from the specified resistance spot welding. This research used the Taguchi method with 4-variables and mixed-experimental levels. The mixed-experimental level, namely 2-experimental levels for the first variable and 3-experimental levels for other variables. The highest tensile shear strength was achieved in 5282.13 N. This condition is achieved at a squeezed time of 20 cycles, 27 kA-welding currents, welding time of 0.5 seconds, and holding time of 18 cycles. The S/N ratio analysis has shown the welding current had the most significant effect, followed by welding time, squeeze time, and holding time. The delta values of S/N ratio were 0.79, 0.64, 0.26 and 0.07, respectively. The ANOVA analysis has shown that the P-value of welding current and welding time is 0.006 (0.6%) and 0.015 (1.5%), respectively. This result is expected for optimizing resistance spot welding quality in other materials or significant aspects.

Evaluation of Corrosion Resistance of Galvanized Steel Sheets Used in Automotive Production

2015 ◽  
Vol 818 ◽  
pp. 141-144
Author(s):  
Luboš Kaščák ◽  
Janette Brezinová ◽  
Jacek Mucha
Keyword(s):  
Corrosion Resistance ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Zinc Coating ◽  
High Rate ◽  
Galvanized Steel ◽  
Electrochemical Characteristics ◽  
Resistance Spot ◽  
Steel Sheets ◽  
Body Production

The steel sheets used for the car body production are protected against corrosion by zinc coating. Resistance spot welding is used mainly for joining these sheets, because of its high speed and adaptability for automation in high-rate production. However, resistance spot welding has a negative influence on the corrosion resistance of joints. The paper focuses on the analysis of quality of welds on galvanized steel sheets and their corrosive properties. Tensile test and accelerated corrosion test in corrosive environment were used for evaluation of the welds’ quality. Protective efficiency of zinc coatings for automobile sheets was evaluated as well, based on the determination of their electrochemical characteristics in passivated and non-passivated state, as well as their corrosion resistance in simulated corrosion environments. Two types of DX54D+Z material were used for experiments: non-passivated and passivated with Cr3+.

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