Browsing Mechanical and Mechatronics Engineering by Supervisor "Gerlich, Adrian"
Now showing items 1-19 of 19
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Austenitization of Ultra High Strength Steel by Direct Contact Heating for Hot Forming Die Quenching
(University of Waterloo, 2017-04-25)Hot forming die quenching (HFDQ) is a heat treatment process used in automotive manufacturing to produce ultra-high strength steels. It involves heating steel sheets to a temperature above 1153 K and holding them for a ... -
Characterization of Ti-5553 parts printed by Selective Laser Melting (SLM)
(University of Waterloo, 2018-12-20)Nowadays, titanium alloys are widely used in a variety of industries like automotive and aerospace due to their high strength to weight ratio. Ti-5%Al-5%V-5%Mo-3%Cr is a metastable near beta titanium alloy with excellent ... -
The cold wire gas metal arc welding (CW-GMAW) process: Description and Applications
(University of Waterloo, 2020-09-11)The demand for new and reliable welding processes comes from the need to improve productivity and quality in welding of new materials used in infrastructure projects. Among the areas where this development is crucial, is ... -
Effect of Martensite-Austenite (MA) on Mechanical Properties of X80 Linepipe Steel
(University of Waterloo, 2019-01-08)The aim of the present work is to dispel some of the controversy involving Martensite-Austenite (MA) in pipeline steel welds. The fraction, size, morphology and distribution of Martensite-Austenite can have considerable ... -
Effects of Processing Parameters on Friction Stir Welded Lap Joints of AA7075-T6 and AA6022-T4
(University of Waterloo, 2016-10-25)Friction stir welding (FSW) is a solid-state welding process that has a number of advantages over traditional fusion welding techniques when attempting to join aluminum or dissimilar material workpieces. It is expected to ... -
Evaluation of Mechanical Properties in Pipeline Girth Welds Using Instrumented Indentation
(University of Waterloo, 2018-08-03)This study aims to develop a new method to characterize mechanical properties using instrumented indentation. The indentation results were correlated with observed microstructure in weld metal of gas metal arc welding ... -
Influence of current pulse profile on metal transfer in pulsed gas metal arc welding
(University of Waterloo, 2017-04-24)The increase in the requirements of safety and reliability demanded from the normalization institutes by the issue of normalizing standards, led to the need of the development of materials of superior properties. Owing to ... -
Investigation of the use of Dynamic Resistance in Adaptive Welding and Statistical Relation to Quality
(University of Waterloo, 2019-09-19)The pursuit of real time quality detection of a resistance spot weld (RSW) in the automotive industry has progressed alongside technology. With the capability of modern controllers to collect real-time data from the welding ... -
Kinetics of Carbide Precipitation during Laser Beam Welding of Dual-Phase and Martensitic Steels
(University of Waterloo, 2016-09-14)In order to ensure a high passenger safety and reduce greenhouse gas emissions, dual-phase (DP) and martensitic steels (MS) are increasingly being used in the automotive industries. However, the main issue in the welding ... -
Low Cost Thermal Imaging System for Welding Applications
(University of Waterloo, 2016-09-29)A significant component of welding research is devoted to studying the relationship between welding parameters and material properties. The fundamental link between process parameters and material properties is established ... -
Performance characterization of shielded metal arc welding power supply designs
(University of Waterloo, 2019-01-28)Engine driven welding power supplies are widely used for Shielded metal arc welding process in field applications such as pipeline industry, where there is a lack of electricity grid. Being a manual process, the welder’s ... -
Powder Spray Laser Additive Manufacturing of Zirconium
(University of Waterloo, 2016-11-29)Zirconium is commonly used in nuclear, chemical processing and biomedical applications due to its low thermal neutron cross-section, relatively high corrosion resistance and great biocompatibility. Although it is an ideal ... -
Prediction of Bead geometry in Gas Metal Arc Welding by Statistical Regression Analysis
(University of Waterloo, 2019-01-25)Manufactures in fabrication industry have long depended on Gas Metal Arc welding as one of the most reliable and economical techniques for joining parts. The need for reducing costs and addressing a skills shortage on the ... -
Real-Time Closed-Loop Control of Microstructure and Geometry in Laser Materials Processing
(University of Waterloo, 2017-12-18)Laser Materials Processing (LMP) is currently one of the fastest growing technologies of the 21st century. Different categories of this technology such as Laser Additive Manufacturing (LAM) and Laser Heat Treatment (LHT) ... -
Recurrent Neural Network Dual Resistance Control of Multiple Memory Shape Memory Alloys
(University of Waterloo, 2018-08-23)Shape memory alloys (SMAs) are materials with extraordinary thermomechanical properties which have caused numerous engineering advances. NiTi SMAs in particular have been studied for decades revealing many useful characteristics ... -
Refill Friction Stir Spot Welding Of Dissimilar Alloys
(University of Waterloo, 2015-12-22)Lightweight alloy materials such as magnesium and aluminum alloys are frequently employed in the automotive and manufacturing industry in order to improve vehicle fuel economy. This creates a pressing need for joining of ... -
Resistance Spot Welding and In-Process Heat Treatment of Hot Stamped Boron Steel
(University of Waterloo, 2016-03-15)Escalating environmental concerns have prompted efforts to reduce vehicle weight and carbon emissions, resulting in increased application of advanced high strength steels (AHSS). 22MnB5 hot stamping grade AHSS, namely ... -
Sulphide Stress Cracking in X80 Pipeline Steel Welds
(University of Waterloo, 2020-11-09)The utilization of high strength linepipes provides various benefits, including reducing construction cost, and operational cost. On the other hand, the girth welds for such pipelines are welded onsite, and simultaneously ... -
Tool eccentricity in thick-plate aluminum alloy friction stir welds
(University of Waterloo, 2020-05-13)Tool eccentricity, i.e. the wobbling motion of a milling tool during rapid rotation caused by its slight offset from the spindle rotational axis, has been given very limited attention in the 20 years of friction stir welding ...