Sustainable Processes in Aluminium, Magnesium, and Titanium Alloys Applied to the Transport Sector: A Review

Abstract

The reduction of consumption and pollutant emissions is a top priority for the transport sector. One working line is the substitution of conventional structural materials with lightweight materials such as metallic alloys of aluminium, titanium, and/or magnesium. For this reason, and considering that the number of related articles is lower than the existing number of other structural lightweight materials, it is considered very convenient and helpful to carry out a systematic analysis of their latest trends through Open Access literature. A methodology adapted from the PRISMA statement is applied, in order to guarantee unbiasedness and quality in selecting literature and research. The final selection is made up of the 40 most cited research papers from 2015–2020, with an average of 20.6 citations per article. Turning and drilling are the most trending machining processes, and there is particular interest in the study of sustainable cooling, such as dry machining, cryogenic cooling, and MQL. In addition, another trending topic is multi-materials and joining dissimilar materials with guarantees. Additive manufacturing has also been identified as an increasingly trending theme, appearing in 18% of the selected studies. This work is complemented with summary tables of the most cited Open Access articles on sustainable machining and cooling, multi-materials or hybrid components, and additive manufacturing.

Improving the Formation and Quality of Weld Joints on Aluminium Alloys during TIG Welding Using Flux Backing Tape

“…The mass of vehicles has been steadily reduced over the years to reduce fuel consumption and pollutant emissions. The mass of an average diesel car sold in 2017 was 20 kg lower than in 2016 [5].…”

Turning of Al 7075-T6 aerospace alloy under different sustainable metalworking fluid strategies by coated carbide tools

“…Imbrogno et al [39] concluded that higher thermal gradient occurred beneath dry conditions in comparison to MQL and cryogenic conditions. Blanco et al did a review and reported that researchers are paying attention towards the use of sustainable cooling in turning and drilling machining processes [40]. Batista Ponce et al recommended a basic optical technique for industrial applications to measure tool wear due to high precision, low cost, and simplicity in machining processes [41].…”

Mechanical performance and failure modes of self-piercing riveted joints between AA6061 and solution-treated TC4 alloy

“…To promote green and low-carbon development, lightweight has achieved wide development prospects in many industries, and lightweight is a key development direction in the future [1][2][3]. TC4 (Ti-6Al-4V) titanium alloy has high tensile strength, low density, and stable mechanical properties at high temperatures, which is widely used in the structure and fasteners of aircraft bodies [4,5].…”