A5044278886- Advanced Welding Techniques Analysis
- Aluminum Alloy Microstructure Properties
- Welding Techniques and Residual Stresses
- Aluminum Alloys Composites Properties
- Nuclear Materials and Properties
- Microstructure and Mechanical Properties of Steels
- Additive Manufacturing and 3D Printing Technologies
- Metal Alloys Wear and Properties
- Additive Manufacturing Materials and Processes
- Metal Forming Simulation Techniques
- Advanced machining processes and optimization
- Nuclear and radioactivity studies
- Fusion materials and technologies
- Hydrogen embrittlement and corrosion behaviors in metals
- Engineering Applied Research
- High Temperature Alloys and Creep
- Structural Load-Bearing Analysis
- Engineering Technology and Methodologies
- Laser Material Processing Techniques
Dr. B. R. Ambedkar National Institute of Technology Jalandhar
2018-2024
Universidade Nova de Lisboa
2024
Teerthanker Mahaveer University
2023
Shobhit University
2022
Zinc-coated high-strength steels (HSS) and advanced (AHSSs) are widely employed in automobile body manufacturing owing to their impressive metallurgical mechanical characteristics. However, acquiring defect-free mechanically sound welding joints is still quite challenging due the formation of various defects, namely porosity, loss coating, evolution undesired microstructural phases both heat-affected zone fusion zone. The higher heat input during conventional processes tends exacerbate these...
Abstract This study investigates the impact of particle size distribution (PSD) in Scalmalloy® powder feedstocks on geometrical accuracy, microstructure, defect formation, and mechanical properties test artifacts fabricated via Laser-Based Powder Bed Fusion Metals (PBF-LB/M). Two were analyzed: Powder-1, with a mean 29.30–29.72 μm narrower, more uniform PSD, Powder-2, 40.80–41.53 broader, heterogeneous PSD. Powder-2 produced improved accuracy surface finish but exhibited cracking both...
In this study, three types of Cu-based fillers with varying Al content were used for joining high strength DP780 steels in lap position using cold metal transfer (CMT) brazing a range heat input 64–266 J mm−1. Results showed that formation liquation cracking and porosity occured case pure Cu whereas presence intermetallic layer at the L/S interface alloyed wires prevented diffusion grain boundaries base metal. Majorly bead shape amount dispersed phases deposited contributed to joint...
The aim of this work is to optimize the process parameters and analyze evolution mechanical microstructural properties during CMT spot weld-brazing dissimilar materials aluminium-steel. In doing so, including hold time, hole diameter pre-setting gap were optimized using Taguchi orthogonal design then microstructure interfacial region was characterized optical microscopy, scanning electron microscopy X-ray diffraction. Shear-tensile testing performed evaluate load-bearing capacity joints. It...
<title>Abstract</title> This study compares various modes of metal inert gas (MIG) brazing concerning process stability, bead morphology, microstructure, and mechanical properties. The pulsed-MIG produces joints with flatter wider indicating better wettability compared to cold transfer (CMT) standard-MIG processes. difference is due the higher heat input at same wire feed rate (WFR). Analysis voltage-current signals, probability distribution curves, cyclograms reveals that CMT-MIG most...
Abstract The present study aimed to braze interstitial free (IF) steel by using novel Braze+ and conventional Robacta torches with the aid of CuAl8 filler wire for a range heat input 72–250 J/mm. Results showed that focused/denser arc smaller action range, i.e., lower loss in case torch resulted better wettability, thicker intermetallic layer at interface deposited bead-steel, higher dispersive phase fraction bead compared which ultimately contributed evolution mechanical properties brazed...
AbstractThis investigation aims to examine the effectiveness of torch position, welding-brazing parameters on embedded bead profile and load carrying potential brazed joint zinc coated DP600 steel Al 5052 joined by cold metal transfer (CMT) technique. The base metals were at different position (−0.6, 0 0.6 mm) in lap using Al-based filler wire. At wire feed rate (WFR) 3, 4 5 m/min changes shape its geometry observed. various modes failure classified based effective bonding length (LH–LV)...
ABSTRACTWeld strength and quality are mostly affected by process parameters, which, in turn, influence the mechanical properties of weld metal heat zone. In this research work, effect electrode wire preheating on different responses including melting rate, plate efficiency, width zone, microhardness, corrosion rate was studied. The experiments were carried out to accumulate response data using optimisation techniques. Then, quadratic mathematical models developed checked significance tests...
A holistic evaluation approach using a complex test artifact in combination with single line scan tracks was used here to examine the effects of different laser beam energy profiles on melt pool geometry, microstructure, mechanical properties and productivity for laser-based powder bed fusion metals (PBF-LB/M). Using Inconel 718, results showed that shape has strong influence bead where conventionally Gaussian had deeper concave shaped pools (beads), whereas use ring produced wider shallower...