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DEFINITION: •Additive Manufacturing (AM) refers to a process by which digital 3D design data is used to build up a component in layers by depositing material.
- 1.2 Additive Manufacturing Processes
- 1.2.1.1 Pros and Cons
- 1.2.1.2 Machines and Manufacturers
- 1.2.2.1 Pros and Cons
- 1.2.3.1 Pros and Cons
- 1.2.5.1 Pros and Cons
The technical execution of AM processes is carried out by means of direct layer manufacturing process. The developed technologies for AM in the market can be categorized into five main processes. Each of these processes uses different methodologies in order to form a solid layer and fabricate the final part by connect-ing adjacent layers. All five ...
Polymerization results in very good surface quality and fine details. But it uses sup-port structures that need to be removed, and the parts mostly need to undergo the post-curing. The plastic material and its comparably low glass transition tempera-ture must be regarded as cons if tooling applications are needed.
Laser stereolithography machines (Viper SLA and iPro SLA Series) and polymer printers (ProJet Series) are developed by 3D Systems. Polymer Jetting machines (Eden- and Connex Series) are offered by Objet. Machines using DLP projectors (Perfactory Series) come from EnvsionTec.
Sintering processes can handle all materials that behave like thermoplastics which means they melt and solidify if heated and cooled down. Additionally, they must be available as powders. Sintering and melting enables making interior hollow Fig. 1.4 Selective laser sintering/melting process steps geometries. This opens up the possibility to make ho...
The process and the machines are easy to run even in an ofice environment. The process is mostly limited to plastics. The parts can be used within the product devel-opment process. The surface shows a texture due to the extruded strings that changes according to the orientation of the part within the build space. If used as master model for follow-...
Layer laminate processes can process all types of materials that can be processed thermally or mechanically. The big amount of waste compensates this favor at least partly and forces the designer to optimize the part’s shape and orientation. The advantage of LLM processes in general is fast manufacturing of massive parts.
- Miranda Fateri, Andreas Gebhardt
- 2021
Introduction to Additive Manufacturing. This chapter introduces the reader to the multiple domains of Additive Manufacturing (AM) technology, including its history, principles, proce-dural steps, and classifications.
Source: Gibson, Additive Manufacturing. STL uses triangles to describe the surfaces to be built. Each triangle is described as three points and a facet normal vector indicating the outward side of the triangle, in a manner similar to the following:
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1.0. Figure 1.1. Timeline of the Industrial Revolutions. the dawn of a new manufacturing era. Before diving deep into the technical features and current status of AM, we examine its intriguing fundamental nature in the following section. 1.2 Concept of AM.
Additive Manufacturing is defined by a range of technologies that are capable of translating virtual solid model data into physical models in a quick and easy process. The data is broken down into a series of 2D cross-sections of a finite thickness.
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This Handbook is the ultimate definitive guide that covers key fundamentals and advanced applications for Additive Manufacturing. The Handbook has been structured into seven sections, comprising of a thorough Introduction to Additive Manufacturing; Design and Data; Processes; Materials; Post-processing, Testing and Inspection; Education and ...
