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These results present a path forward for real-time flaw detection and assessment of build quality in directed energy deposition and powder bed fusion processes .
 flaw detection, build, directed energy deposition, powder bed fusion processes
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 flaw detection, build, directed energy deposition, powder bed fusion processes