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Additive Manufacturing Overview

Additive manufacturing (AM) is a process of joining materials to make objects from 3D CAD data layer by layer. AM enables design complexity, parts consolidation, customization, and multiple assemblies. Popular AM processes include material extrusion, material jetting, powder bed fusion, and sheet lamination. Key advantages of AM are the ability to produce complex shapes with low defects. Areas that benefit from AM include automotive, education/research, food, medical, and military. AM can produce parts with better design, functionality, and quality using multiple materials. The general AM process involves creating a 3D CAD model, converting it to STL format, transferring it to the AM machine, building the part layer-by-layer,

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120 views2 pages

Additive Manufacturing Overview

Additive manufacturing (AM) is a process of joining materials to make objects from 3D CAD data layer by layer. AM enables design complexity, parts consolidation, customization, and multiple assemblies. Popular AM processes include material extrusion, material jetting, powder bed fusion, and sheet lamination. Key advantages of AM are the ability to produce complex shapes with low defects. Areas that benefit from AM include automotive, education/research, food, medical, and military. AM can produce parts with better design, functionality, and quality using multiple materials. The general AM process involves creating a 3D CAD model, converting it to STL format, transferring it to the AM machine, building the part layer-by-layer,

Uploaded by

Lavanya Sothi
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as DOCX, PDF, TXT or read online on Scribd
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ADDITIVE MANUFACTURING Areas of particular interest that are enabled by

the geometrical freedoms offered by AM:


Definition
1. Design Complexity
process of joining materials to make objects 2. Parts Consolidation
from 3D CAD data, usually layer upon layer 3. Parts Customisation
4. Multiple Assemblies
Process of AM
Application
Material Extrusion (FDM)
material is selectively dispensed through a i) Automotive
nozzle or orifice Car parts
ii) Education and Research
Material Jetting replica and historical items
droplets of build material are selectively iii) Food
deposited Vegetables/ food display
iv) Medical
Powder Bed Fusion (SLS) Implantation
which thermal energy selectively fuses regions v) Military
of a powder bed Défense arms

Sheet Lamination Other terms for AM:


sheets of material are bonded to form an
object a) Rapid prototyping
b) Rapid manufacturing
Advantages of AM c) Layered manufacturing
d) Additive layer manufacturing
Able to produce complex shape e) Digital manufacturing
Low defect and high quality consistency
AM Categories:
Disadvantage of AM
a) Powder bed process
High production rate b) Material deposition process
High material cost c) 3D printing
d) Liquid
Post process in AM
Multiple materials do for design:
1. Debinding
2. Sintering a. Better design
b. More functionality
General AM process c. Better products

I. Create 3D CAD model of product


II. Convert CAD data into STL file
III. Transfer STL file to AM machine
IV. Machine Setup
V. Part construction
VI. Part removal, cleaning and post-
processing
VII. Post processing
VIII. Application

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