Laser keyhole welding of galvanized high-strength steel in a gap-free lap joint configuration

2010 ◽  
Author(s):  
Shanglu Yang ◽  
Blair Carlson ◽  
Radovan Kovacevic
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Lap Joint ◽  
Joint Configuration ◽  
Keyhole Welding ◽  
Laser Keyhole Welding

Real-time monitoring of laser welding of galvanized high strength steel in lap joint configuration

2012 ◽  
Vol 44 (7) ◽  
pp. 2186-2196 ◽  
Author(s):  
Fanrong Kong ◽  
Junjie Ma ◽  
Blair Carlson ◽  
Radovan Kovacevic
Keyword(s):  
Laser Welding ◽  
Real Time ◽  
High Strength Steel ◽  
High Strength ◽  
Lap Joint ◽  
Real Time Monitoring ◽  
Joint Configuration

Lap Joint Properties of FSBRed Dissimilar Metals AZ31 Mg Alloy and DP600 High-Strength Steel with Various Parameters

2011 ◽  
Vol 228-229 ◽  
pp. 427-432 ◽  
Author(s):  
Chang Qing Zhang ◽  
Bo Qiang Li ◽  
Xi Jing Wang
Keyword(s):  
Shear Strength ◽  
High Strength Steel ◽  
High Strength ◽  
Frictional Heat ◽  
Lap Joint ◽  
Workpiece Material ◽  
High Rotational Speed ◽  
Friction Stir ◽  
Az31 Mg Alloy ◽  
Joint Properties

The Friction stir blind riveting (FSBR) process consists of a blind rivet is driven at high rotational speed and brought into contact with the workpieces, thereby generating frictional heat between the rivet and the workpiece, which softens the workpiece material and enables the rivet to be driven into the workpieces under reduced force. The riveting of lap joint of AZ31B(3mm) magnesium alloys plate and a DP600 (1mm) high strength steel plate was produced by FSBR using 2200rpm rotation speed, various feet rates and different lap mode to investigate the effects of the joint morphology and strength. The joint strength depended strongly on the shank of rivet itself shear strength，however in which case the strength of joint impacted by rivet assembly quality (the lap of plates, the tightness rivet of workpiece). So positioning the steel sheet on the top is desirable, the maximum shear strength of the joint reached about 6.0KN.

Microstructure and Mechanical Properties of Aluminum Alloy/High Strength Steel Double Beam Laser Deep Penetration Welded Joint

2019 ◽  
Vol 944 ◽  
pp. 448-457
Author(s):  
Hong Xi Chen ◽  
Li Cui ◽  
Dong Qi Lu ◽  
Yao Qing Chang ◽  
Xu Xia ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
High Strength Steel ◽  
High Strength ◽  
Deep Penetration ◽  
Mechanical Resistance ◽  
Lap Joint ◽  
Beam Laser ◽  
Double Beam ◽  
Laser Deep Penetration Welding ◽  
Deep Penetration Welding

A new dual beam laser deep penetration welding technology for lap joint of 1.5 mm thick aluminum alloy and high strength steel was explored in this paper, and the effects of three different beam energy ratios (RS=0.25,0.33,0.5) on weld formation, interface microstructure and mechanical properties were studied. The result shows that under certain conditions of other parameters, double beam laser deep penetration welding process can be applied to lap joint of aluminum alloy / high strength steel with good weld shape when RS=0.25,0.33,0.5. As RS increases from 0.25 to 0.5, the penetration of the weld reduces from 575 μm to 424.2μm, the thickness of intermetallic compound (IMC) layer at the interface between aluminum alloy and weld metal reduces from 3.4 μm to 2.5 μm, the average microhardness of the IMC layer decreases from 771.1 HV to 571.9 HV, the mechanical resistance of the joint raises from 95.7N/mm to 115.2N/mm. When RS=0.5, double beam laser deep penetration welding of aluminum alloy / high-strength steel joints has the highest mechanical resistance of joints, because of the relatively good plastic ductility of the joint.

Strength analysis of laser welded lap joint for ultra high strength steel

2013 ◽  
Author(s):  
Young Cheol Jeong ◽  
Cheol Hee Kim ◽  
Young Tae Cho ◽  
Yoon Gyo Jung
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Strength Analysis ◽  
Lap Joint ◽  
Ultra High Strength Steel

scholarly journals FEM Analysis as a Tool to Study the Behavior of Methacrylate Adhesive in a Full-Scale Steel-Steel Shear Joint

Materials ◽  
2022 ◽  
Vol 15 (1) ◽  
pp. 330
Author(s):  
Marta Kałuża ◽  
Jacek Hulimka ◽  
Arkadiusz Bula
Keyword(s):  
High Strength Steel ◽  
Adhesive Layer ◽  
High Strength ◽  
Model Tests ◽  
Full Scale ◽  
Engineering Practice ◽  
Bonded Joints ◽  
Lap Joint ◽  
Adhesively Bonded ◽  
Adhesively Bonded Joints

The use of adhesive to joint structural elements, despite many advantages of this technology, is not a method commonly used in engineering practice, especially in construction. This is mainly due to the poor recognition of the behavior, both in terms of testing and analysis, of joints made on a scale similar to the actual elements of building structures. Therefore, this paper presents the results of model tests and then numerical analyses of adhesively bonded joints made of high-strength steel elements in a full-scale (double-lap joint). In order to properly model the adhesive connection, material tests of the methacrylate adhesive were performed in the field of tensile, shear (in two versions: single lap joint test and thick adherent shear test) and bond properties. Comparison of the results of the model and numerical tests showed very good agreement in terms of the measurable values, which makes it possible to consider the results obtained in the adhesive layer as reliable (not directly measurable in model tests). In particular, the distribution of stresses inside the adhesive layer, the range of plastic zones and areas of loss of adhesion are presented and discussed. The results indicate the possibility of a reliable representation of the behavior of adhesively bonded joints of high-strength steel, thus providing a tool for the analysis of semirigid adhesive in large-size joints.

Behavior and Strength of Block Shear in High-Strength Steel Lap Joint

2018 ◽  
Vol 30 (6) ◽  
pp. 391-400
Author(s):  
Keun Hyung Kim ◽  
Cheol Ho Lee ◽  
Dae Kyung Kim ◽  
Jae Kwon Ahn
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Lap Joint ◽  
Block Shear
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