Buildability of Mortar Feedstock in Material Extrusion Additive Manufacturing

Buildability of Mortar Feedstock in Material Extrusion Additive Manufacturing

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Mortar feedstock is extruded to form bead and it is selectively placed line by line in the material extrusion additive manufacturing.With respects to part building process Sofa/Chairs/Table Set (4/CN) healthiness, load-supporting ability of overlaid beads is emphasized as buildability.Buildability is primarily dependent on thixotropic properties of feedstock and vertical overlapping schedule.In the present study, water-to-binder (w/b) ratio was chosen as material aspect to assess buildability.Uneven bead shape evolution and premature failure were highlighted owing to low yield stress of high w/b ratio feedstock.

Feedstock with optimum w/b ratio showed good BEET CHIPS buildability even at the interval time of 19 sec.