Additive Manufacturing

What is Additive Manufacturing?

Additive manufacturing, often referred to as 3D printing, is a process of creating three-dimensional objects by adding material layer by layer, based on a digital model or CAD (Computer-Aided Design) file. This stands in contrast to traditional subtractive manufacturing methods where material is removed from a solid block to create the desired shape.

The process of Additive Manufacturing typically involves the following steps:

Design: Creation of a digital 3D model using CAD software or by 3D scanning an existing object.
Preparation: The digital model is sliced into thin horizontal layers using specialised software.
Printing: The printer interprets the sliced layers and deposits material, often plastic, metal, ceramic, or composite, layer by layer according to the design.
Post-processing: Depending on the specific additive manufacturing technology used, the object may require additional processing such as curing, polishing, or support removal.

Additive manufacturing has numerous advantages including the ability to create complex geometries, reduce material waste, produce customised objects, and enable rapid prototyping. It finds applications across various industries including aerospace, automotive, healthcare, and consumer goods. Common additive manufacturing techniques include Fused Deposition Modelling (FDM), Stereolithography (SLA), Selective Laser Sintering (SLS), and Direct Metal Laser Sintering (DMLS), among others.