Which of the following best explains the sudden use of AM in recent years?

The sudden rise in the use of additive manufacturing (AM) in recent years can be best attributed to technological advancements. AM has seen significant improvements, such as enhanced printing speeds, better material properties, and more versatile printing techniques. These advancements have made AM more accessible and efficient, allowing it to be integrated into various industries beyond prototyping, such as aerospace, automotive, and medical fields.

While the end of patents, increased demand for customization, and reductions in manufacturing costs all play roles in the growth of AM, they are either effects of technological advancements or contribute to niche aspects of its adoption. For instance, reduced manufacturing costs make AM more appealing, but without the relevant technological advancements, such cost reductions would not be achievable. Similarly, the increased demand for customization is directly supported by advancements in AM capabilities, which allow for more intricate designs and tailored products compared to traditional methods. Thus, technological advancements serve as the primary catalyst for the recent surge in AM adoption.