MEC 431 Lecture Notes - Lecture 7: Fused Filament Fabrication, Inkjet Printing, 3D Systems

• School: Ryerson University
• Department: Mechanical Engineering
• Course: MEC 431
• Professor: N/ A

Document Summary

Typical accuracy is about +/- (cid:882). (cid:882)(cid:883)7 the un-bonded powders remain loose to be removed later individual powders. Extrudate is solidified and cold welded to the cooler part surface in. Part is fabricated layer-by-layer from the base up about 0. 1 s. 36 where ai = area of layer i. D = diameter of moving spot (assumed circular) Time ti to complete a single layer in processes that use a moving-line channel mode. Ti vsls tr where vs = velocity of moving line. Time ti to complete a single layer in processes that use a layer channel mode ti = tex + tr. Where tex = exposure time for one layer. Time ti to complete a single layer in processes that use a moving-spot channel mode. Different r/p modes: (cid:523)a(cid:524) moving point or moving spot, (b) moving line across the entire layer in one translational motion, and (c) layer mode - entire layer is created at the same time.