scholarly journals Magnetic stray field mapping of stainless steel sheets using spin Hall magnetoresistance sensor

AIP Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 125225
Author(s):  
Ling Lu ◽  
Xiaomin Li ◽  
Younan Hua ◽  
Yihong Wu
Keyword(s):  
Stainless Steel ◽  
Stray Field ◽  
Field Mapping ◽  
Steel Sheets

scholarly journals Analysis of Acoustic Emission (AE) Signals for Quality Monitoring of Laser Lap Microwelding

2021 ◽  
Vol 11 (15) ◽  
pp. 7045
Author(s):  
Ming-Chyuan Lu ◽  
Shean-Juinn Chiou ◽  
Bo-Si Kuo ◽  
Ming-Zong Chen
Keyword(s):  
Stainless Steel ◽  
Acoustic Emission ◽  
Frequency Domain ◽  
Monitoring System ◽  
Welding Quality ◽  
Steel Sheets ◽  
Signal Features ◽  
Ae Signal ◽  
Laser Microwelding ◽  
Ae Signals

In this study, the correlation between welding quality and features of acoustic emission (AE) signals collected during laser microwelding of stainless-steel sheets was analyzed. The performance of selected AE features for detecting low joint bonding strength was tested using a developed monitoring system. To obtain the AE signal for analysis and develop the monitoring system, lap welding experiments were conducted on a laser microwelding platform with an attached AE sensor. A gap between the two layers of stainless-steel sheets was simulated using clamp force, a pressing bar, and a thin piece of paper. After the collection of raw signals from the AE sensor, the correlations of welding quality with the time and frequency domain features of the AE signals were analyzed by segmenting the signals into ten 1 ms intervals. After selection of appropriate AE signal features based on a scatter index, a hidden Markov model (HMM) classifier was employed to evaluate the performance of the selected features. Three AE signal features, namely the root mean square (RMS) of the AE signal, gradient of the first 1 ms of AE signals, and 300 kHz frequency feature, were closely related to the quality variation caused by the gap between the two layers of stainless-steel sheets. Classification accuracy of 100% was obtained using the HMM classifier with the gradient of the signal from the first 1 ms interval and with the combination of the 300 kHz frequency domain signal and the RMS of the signal from the first 1 ms interval.

Spot Weldability Assessment of Similar and Dissimilar Steel Sheets for Light Weight Automobile Body

2006 ◽  
Vol 306-308 ◽  
pp. 899-904
Author(s):  
Dong Ho Bae ◽  
Won Seok Jung ◽  
J.B. Heo
Keyword(s):  
Stainless Steel ◽  
Fatigue Strength ◽  
Lap Joints ◽  
Vehicle Body ◽  
Rolled Steel ◽  
Cold Rolled Steel ◽  
Steel Sheets ◽  
Automobile Body ◽  
Cold Rolled ◽  
Spot Welded

An effective way to reduce the weight of vehicle body seems to be application of new materials, and such trend is remarkable. Among the various materials for automobile body, stainless steel sheets and cold rolled steel sheets are under the interests. However, in order to guarantee reliability of new material and to establish the long life fatigue design criteria for body structure, it is necessary to assess spot weldability and fatigue strength of spot welded lap joints fabricated under optimized spot welding condition. In this paper, spot weldability of stainless steel sheets, STS301L and STS304L, and cold rolled steel sheets, SPCC and SPCD. Fatigue strength of lap joints spot welded between similar and dissimilar materials were also assessed.

Microstructure, anisotropy and formability evolution of an annealed AISI 430 stainless steel sheets

2021 ◽  
Author(s):  
Roberto Iquilio Abarzúa ◽  
Eliseo Hernández Duran ◽  
Tuan Nguyen-Minh ◽  
Leo A.I. Kestens ◽  
José Luis Valín Rivera ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Steel Sheets ◽  
430 Stainless Steel ◽  
Aisi 430

scholarly journals Assessment of industrial wastes in mortar layers deposited on stainless steel sheets of sinks

Cerâmica ◽  
2004 ◽  
Vol 50 (316) ◽  
pp. 336-344 ◽  
Author(s):  
E. Gemelli ◽  
S. Lourenci ◽  
M. V. Folgueras ◽  
N. H. Almeida Camargo
Keyword(s):  
Stainless Steel ◽  
Mechanical Strength ◽  
Industrial Application ◽  
Industrial Wastes ◽  
Atmospheric Environment ◽  
Polypropylene Fibers ◽  
Steel Sheets ◽  
Metal Sheets ◽  
Flexion Strength

This work deals with the properties of alternative mortars destined to strengthen metal sheets of sinks. The performance of these mortars was compared to that of a basic mortar made of cement, sand, and water, named standard mortar (SM). One of these mortars, named alternative mortar 2 (AM2), and composed of cement, textile residue, polyurethane, polypropylene fibers and water, was developed recently to replace the current one, named alternative mortar 1 (AM1), composed of cement, sand, polystyrene, polypropylene fibers and water. These mortars were manufactured and aged in a room in atmospheric environment for 7, 14, 28, 60 and 90 days, either with or without initial drying in a furnace. After cure of 90 days the flexion strength stress of the SM, AM1 and AM2 mortars was 5.21, 3.84, and 1.42 MPa, respectively. The SM and AM1 mortars were constituted of C-S-H phases, Ca(OH)2, SiO2, AFm and AFt (monossulphate/ettringite) phases. The AM2 mortar presented, apart from the compounds mentioned above, CaCO3. This compound is from the textile residue that is composed essentially of CaCO3 and Ca(OH)2. The reduction in flexion strength of AM1 mortar, compared to SM mortar, is caused by the polystyrene whereas the lowering mechanical strength of the AM2 is due to both polyurethane and textile residue. Even so, its mechanical strength is acceptable because the flexion strength stress required for the industrial application is 1.0 MPa.

Mechanical Behavior and Failure Mechanism of Nb-Clad Stainless Steel Sheets

2009 ◽  
Vol 2 (1) ◽  
pp. 547-554
Author(s):  
K. Asim ◽  
W. F. Hosford ◽  
Jwo Pan ◽  
Sun-Tae Hong ◽  
K. S. Weil
Keyword(s):  
Stainless Steel ◽  
Mechanical Behavior ◽  
Failure Mechanism ◽  
Steel Sheets

scholarly journals Design and Optimization of a Shearing Machine Using FEA

2017 ◽  
Vol 7 (2 (S)) ◽  
pp. 181
Author(s):  
Satish Bahaley ◽  
Rasika Khairkar
Keyword(s):  
Plastic Deformation ◽  
Stainless Steel ◽  
Shear Stress ◽  
Cad Model ◽  
Design And Optimization ◽  
Steel Sheets

Shearing is the process to cut sheets using pair of blades, by applying shear stress along the thickness of the sheet. Shearing happens by extreme plastic deformation followed by breaking which propagates deeper into the thickness. The upper blade is fixed to the ram assembly that moves vertically and lower knife is fixed in the stationary table. This project is rooted on the necessity of industry to develop a shearing machine for cutting 5mm thick stainless steel sheets. In this project we will design a CAD model of shearing machine and analyze using FEA technique.

Preparation of Silicalite-1 Micromembranes on Laser-Perforated Stainless Steel Sheets

2004 ◽  
Vol 16 (24) ◽  
pp. 4847-4850 ◽  
Author(s):  
Ester Mateo ◽  
Ruth Lahoz ◽  
Germán F. de la Fuente ◽  
Andrés Paniagua ◽  
Joaquín Coronas ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Steel Sheets
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