Why are standardized tests like ASTM D638 important in additive manufacturing?

Standardized tests, such as ASTM D638, play a crucial role in additive manufacturing by allowing for benchmarking and comparison of material properties. These standards provide a uniform method for evaluating the mechanical properties of materials, including tensile strength, elasticity, and elongation. This consistency is essential for ensuring that materials used in additive manufacturing perform reliably under specified conditions.

When manufacturers or engineers refer to standardized test results, they can make informed decisions about which materials are suitable for their applications. By comparing the properties of different materials against the same benchmarks, they can determine which materials will meet the requirements of their projects, whether that be for strength, durability, or flexibility.

Standardized testing fosters trust and reduces variability, allowing stakeholders to make data-driven choices when selecting materials. This functionality is vital in scenarios where material performance can significantly affect the end product's safety and efficacy. Consequently, reliance on standardized testing leads to more reliable outcomes in additive manufacturing processes.