Ferreirolo ® 29-Апр-2021 19:01

Guide For Additive Manufacturing


Year: 2021
Language: english
Author: ABS
Genre: Guide
Publisher: American Bureau of Shipping ABS
Edition: 1st
Format: PDF
Quality: eBook
Pages count: 59
Description: Additive manufacturing (AM), also known as 3D printing, is a process of fusion/joining materials to make objects from 3D model data, usually layer upon layer, as opposed to subtractive manufacturing methodologies. AM can fabricate 3D parts by creating multiple 2D cross sections and increase the flexibility of designs for complex shapes, some of which were not previously feasible in traditional manufacturing.
During the past several decades, academia and industry have performed many studies on the AM process and equipment for various materials, designs, and applications. The early AM processes were established in the 1980s to rapidly produce prototypes to test form, fit, and function. Later, the AM process was applied to molds and fixtures to support traditional manufacturing.
The increased uptake of the technology has driven AM technology from prototype to end use, from non- metallic materials to metal materials, and from fabrication of small parts created by desktop machines to large parts created by computer numerical control (CNC) machines or robotic arms. The expanded capability of AM makes it feasible to implement metal AM parts to marine and offshore end use applications.
For marine and offshore applications, metal AM may add value in the following areas:
i) Manufacturing on demand with shorter lead time in the supply chain (e.g., changing from management of physical parts to management of a computer aided design (CAD) model and manufacture on demand where and when it is needed)
ii) Manufacturing end use parts with more flexibility in design (e.g., reducing traditional machining costs for complex shapes, integrating multiple pieces into a single part with reduced installation costs, and optimizing parts using the topology method by adding materials where needed for reduced weight or improved performance)
iii) Small batch production (e.g., adding more value for small batch production by avoiding high tooling costs, ability to fabricate obsolete parts, self-sustaining for vessels at sea or in port)
iv) Hybrid metal AM process with traditional manufacturing (e.g., applying AM process for repair, applying AM features to traditionally manufactured parts, adding functional or new materials for improved resistance to corrosion, erosion, or wear)

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