SME TOOLINGU AM QUESTIONS AND ANSWERS ALREADY PASSED

SME TOOLINGU AM QUESTIONS AND ANSWERS ALREADY PASSED What AM post-processing technique is used to improve the physical and mechanical properties of metal parts? Heat treatment What AM process did manufacturers develop in the 1990s that allowed them to produce metal parts? Direct metal laser sintering (DMLS) What term refers to manufacturers using AM as an intermediary step during a traditional manufacturing operation? Secondary process What additive manufacturing method involves depositing and curing drops of liquid or liquid- like material? Material jetting What unique AM feature can help reduce a part's weight while improving its strength and fatigue resistance? Lattice structures Which of the following parts would a smaller, more inexpensive AM machine be best suited to produce? Conceptual model What additive manufacturing method involves sintering granulated material to create a part? Powder bed fusion (PBF) How do STL files represent the complex, smooth surfaces of CAD model? STL files represent CAD models as: A series of interconnected triangles. What AM material is available in filaments, liquids, and powders and used in material extrusion and selective laser sintering (SLS)? Polymer What type of AM layer construction method involves creating lines of material with a single- point source? 1D channel What computer file represents an AM part as layers and automatically generates the toolpaths for an AM procedure? G-code What step in the basic AM procedure must engineers or operators complete before creating an STL file and G-code file? Engineers or operators must first: Create a 3D CAD model of the part. What is an advantage of additive manufacturing? Additive manufacturing: Allows for more freedom in part shape What is one aspect of a final part that engineers or operators select when creating the CAD model? Resolution What is one barrier to AM growth in the overall manufacturing market? variable part tolerance What manufacturing process involves stacking layers of material in order to create a finished part? Additive manufacturing What removable AM components fortify an AM part as it is built? support structure What type of safety equipment can be used to help prevent operators from building up a slight electrical charge, which could light a pyrophoric material