3167
In this work , the role of heat treatment and build orientation of selective laser melting IN718 is investigated through detailed characterization .
 heat treatment, build orientation, selective laser melting, IN718
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:
 heat treatment, build orientation, selective laser melting, IN718