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The experimental examination was completed by the analysis of the microstructure of each material state.The aim of the research work was to prove the homogenization and optimization of the mechanical properties of additive manufactured components due to a subsequent forming process .
 concept or principle: experimental; concept or principle: microstructure; material: material; concept or principle: research; manufacturing process: homogenization; concept or principle: optimization; concept or principle: mechanical properties; manufacturing process: additive manufactured; manufacturing process: forming process
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: 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:
 concept or principle: experimental; concept or principle: microstructure; material: material; concept or principle: research; manufacturing process: homogenization; concept or principle: optimization; concept or principle: mechanical properties; manufacturing process: additive manufactured; manufacturing process: forming process