Additive Manufacturing Principles & Applications PDF

Additive Manufacturing – principles and applications MEC454 Week 3 – Polymer and other non-metal processes Candice Majewski (she/her) [email protected]  Today’s session: Focus on polymer AM processes. A very quick run-through of the basics – spend some of your independent...

Additive Manufacturing – principles and applications MEC454 Week 3 – Polymer and other non-metal processes Candice Majewski (she/her) [email protected]  Today’s session: Focus on polymer AM processes. A very quick run-through of the basics – spend some of your independent learning time reading more about these processes. Links to some online videos included throughout. Some extra slides at the end of this presentation relating to ‘other’ materials. Please take a quick look at these processes, and ask if you would like more information about them and can’t find it!. 2 Material Extrusion 3  Fused Deposition Modelling Molten plastic extruded through a heated nozzle to create cross- section Chamber may be heated to just below melt temperature of the plastic Support structures for overhanging geometries http://www.custompartnet.com 4  Advantages Office friendly – raw materials not hazardous, although there is potential for fumes and particulates to be released during processing (but can be loud/hot!) Some companies (e.g. Materialise) make use of this for heating their facility Several available (often low cost) materials, some of which compare with traditional materials Coloured materials (often only one at a time) Range of systems available (size, speed, cost etc.) Soluble supports 5  Limitations Slow production of parts with large cross-sections Mechanical properties, particularly in z direction Surface finish can be poor Support structures can be difficult to remove Often only single colour at a time 6  A video! https://www.youtube.com/watch?v=yKHMmKqdI68 7  Personal systems Often defined as costing