Research on manufacturing processes takes a further step of development and becomes stronger with the papers proposed for the 48th North American Manufacturing Research Conference (NAMRC 48). Innovation as the consequence of research is crucial especially in crisis periods. The improvement of products or processes is the key factor to overcome economic problems of a country or of the whole world. Manufacturing can be considered to locomotive of economy in the world and it is crucial to recover the period of suffering and crisis we are living. New materials, new technologies and processes are the actual ways to win the challenge and relaunch the economy.
This special issue entitled “New Trends in Manufacturing Processes Research 2020” brings to readers the state-of-the-art and the latest developments proposed for the 48th North American Manufacturing Research Conference (NAMRC 48). NAMRC 48 scheduled for June 2020 was collocated with MSEC2020/LEM&P, and coordinated by the Conference Coordinating Committee (CCC) involving the host, NAMRI, ASME and JSME. The final recommendation made by CCC was to cancel NAMRC 48 and the collocated conferences after careful assessment of the occurring situation. Discussions started in late February and March 2020 on the impact of the COVID-19 pandemic on attendance at NAMRC 48. Concern for the safety of attendees as well as the impact on attendance prompted discussions to the cancellation of the conference. Carefully considering the situation NAMRI Board and NAMRI Scientific Committee assessed that the reported scientific outputs of authors deserved timely dissemination to be on the cutting edge, maximizing the impact of their research despite this difficult time. In this way, the following nineteen quality papers are carefully selected from NAMRC 48 for inclusion in this special issue.
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1
Microstructure and properties of CeO2-doped CoCrFeMnNi high entropy alloy fabricated by laser metal deposition
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2
Stability boundary and optimal operating parameter identification in milling using Bayesian learning
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3
Effect of Power Supply Type on the Electroplastic Effect
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4
Study Effects of Particle Size in Metal Nanoink for Electrohydrodynamic Inkjet Printing Through Analysis of Droplet Impact Behaviors
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5
Cutting force model of power skiving of internal gear
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6
Design and analysis of a built-in yaw measurement system using dual linear scales for automatic machine tool error compensation
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7
Temperature Regulation for Thermoplastic Micro-forming of Bulk Metallic Glass: Robust Control Design using Buck Converter
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8
Investigating surface finish, burr formation, and tool wear during machining of 3D printed carbon fiber reinforced polymer composite
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9
Investigation of shear failure load in ultrasonic additive manufacturing of 3D CFRP/Ti structures
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10
A Numerically Controlled Shape Memory Alloy Wire Bending Process Using Vat Photopolymerization
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11
A new model for predicting the thickness of intermetallic compounds in friction stir welding
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12
Ultrasound-assisted Vat Photopolymerization 3D Printing of Preferentially Organized Carbon Fiber Reinforced Polymer Composites
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13
Hatch Pattern Based Inherent Strain Prediction using Neural Networks for Powder Bed Fusion Additive Manufacturing
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14
Tool Wear Characterization and Monitoring with Hierarchical Spatio-Temporal Models for Micro-Friction Stir Welding
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15
Thin wall deposition of IN625 using directed energy deposition
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16
An integrated process-performance model of ultrasonic composite welding based on finite element and artificial neutral network
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17
Manufacturing Process Design of a Micro-Scale Liquid-Liquid Extractor and Multi-phase Separator
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18
Structural Coloration Using Face Turning and Variable Tool Vibration Frequency
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19
The effect of spindle dynamics on tool-tip radial throw in micromachining
These nineteen selected papers cover a broad range of research in manufacturing processes, including the processing of advanced materials, milling, turning, welding and joining, laser processing, ultrasonic processing, additive manufacturing and process simulation. As observed in the most recent year, conventional manufacturing processes are still the subject of research and of scientific interest; at the same time additive manufacturing operations show a definitively growing scientific and industrial interest.
Finally, we wish to take this opportunity to thank all the authors for complying with referees’ comments in revising their manuscripts and for their scientific contributions to make this special issue a success. This special issue defines the state-of-the-art technologies in manufacturing processes and opens new perspectives on the next future investigations and activities. Hopefully new developments and targets of interest for the international scientific community are coming in the next years.
Declaration of Competing Interest
We have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.