Additive manufacturing, also known as 3D printing, has been evolving for decades. Early 3D printers were expensive and produced low quality products, limiting growth. Patent expirations led to cheaper consumer 3D printers. While quality is still improving, additive manufacturing is being used more in fields like medicine, engineering, and space travel. There are several types of 3D printing processes that work in different ways, such as material jetting, powder bed fusion, and material extrusion. Additive manufacturing allows for complex designs and less waste but also has slower speeds and higher costs than traditional manufacturing.
It is a group of technologies that build 3D objects by adding layer-upon-layer of materials where the material may be plastic, metal, concrete even in future it may be human tissues also.
By group of technologies we mean 3D Printing, Rapid Prototyping (RP), Direct Digital Manufacturing (DDM), layered manufacturing and additive fabrication here.
It is a group of technologies that build 3D objects by adding layer-upon-layer of materials where the material may be plastic, metal, concrete even in future it may be human tissues also.
By group of technologies we mean 3D Printing, Rapid Prototyping (RP), Direct Digital Manufacturing (DDM), layered manufacturing and additive fabrication here.
Study on the Fused Deposition Modelling In Additive ManufacturingIJERD Editor
Additive manufacturing process, also popularly known as 3-D printing, is a process where a product
is created in a succession of layers. It is based on a novel materials incremental manufacturing philosophy.
Unlike conventional manufacturing processes where material is removed from a given work price to derive the
final shape of a product, 3-D printing develops the product from scratch thus obviating the necessity to cut away
materials. This prevents wastage of raw materials. Commonly used raw materials for the process are ABS
plastic, PLA and nylon. Recently the use of gold, bronze and wood has also been implemented. The complexity
factor of this process is 0% as in any object of any shape and size can be manufactured.
3D Printing (Additive Manufacturing) PPT & PDFmangadynasty5
Definition:
3D Printing, also known as Additive Manufacturing (AM), is a revolutionary manufacturing process that constructs three-dimensional objects layer by layer from a digital model. Unlike traditional subtractive manufacturing methods that involve cutting or shaping material to create an object, 3D printing adds material gradually, allowing for highly complex and customized designs.
3D Printing Technology PPT by ajaysingh_02AjaySingh1901
This PPT make on 3D printing Technology or additive manufacturing in which we cover the need, history importants, future scope, trend before the 3DP, advantage and disadvantage, limitations, application of 3DP
A brief presentation on 3D Printing technology.
3D printing is the technology to print layout of any design to check the accuracy of the design before implementing the same on a large scale design in order to save time and money. The procedure of the same is quite easy and can be carried out with great efficiency. Almost all designs can be formed using this technique unless it is too complex.
What is 3D printing , How Does 3D Printing Work , Types of 3d printing , The History of 3D Printing , 3D Printing Technologies , Common manufactures of 3D printing , 3D Printing Materials , 3D Printing Common applications , Things can't be 3D Printed , By Eng. Osama Ghandour
#WhatIs3DPrinting , #HowDoes3DPrintingWork , #TypesOf3dPrinting , #TheHistoryOf3DPrinting , #3DPrintingTechnologies , #CommonManufacturesOf3DPrinting , #3DPrintingMaterials , #3DPrintingCommonApplications , #ThingsCan'tBe3DPrinted , #ByEng.OsamaGhandour ,
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Additive manufacturing process, also popularly known as 3-D printing, is a process where a product
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9. The Timeline for the evolution of 3D Printing
Additive Manufacturing has been
maturing for decades. Cost and size
of early 3D printers were prohibitive
to growth and available only on a
commercial scale. Patent expirations
led to an explosion of the consumer
side of easy to own 3D printers.
The quality of the product has also
been a limiting factor, but as new
technologies and materials became
available sales and interest increased.
“The future is a blank slate.” No one
can predict the coming decade, but if
the past is a guide, we can expect
advances in 3D printing for medicine,
engineering, space travel, and more.
11. The Seven
Families of
3D Printing
1.Material Jetting
Similar to inkjet printers, material jetting uses droplets that
are placed in selected patterns, layer by layer, to build an
item. Every completed layer is cured by UV radiation.
2.Vat Photo Polymerization
Vat photo polymerization utilizes the chemical reaction
between photopolymers or radiation curable resins,
ultraviolet light, and oxygen to produce 3D objects.The
three main subcategories of vat photo polymerization are
Continuous Digital Light Processing, Digital Light
Processing, and Stere lithography.
3.Binder Jetting
Binder jetting combines liquid binding agents with
powdered material to deposit alternating layers of
construction materials, bonding agent, and powder
spreader to build a 3D object.
4.Material Extrusion
Patented in the 1980s by S. Scott Crump using Fused
Deposition Modeling (FDM), material extrusion utilizes
thermoplastic filament that is fed through a heated nozzle.
The filament is melted and placed layer by layer to produce
a 3D object.
5.Powder Bed Fusion
One of the first types of industrial additive manufacturing
ever used was laser sintering, a sub-category of powder
bed fusion techniques. Powder bed fusion melts powdered
material and fuses it via laser or electron beam to produce
a 3D object. Other types of powder bed fusion processes
include selective heat sintering, direct metal laser sintering,
electron beam melting, selective laser melting, and laser
sintering.
6.Sheet Lamination
Sheet lamination generally refers to processes that utilize
ultrasonic additive manufacturing, laminated object
manufacturing, and selective deposition lamination. Sheet
lamination stacks laminate sheets of material to produce
tangible items.
7.Directed Energy Deposition
Similar to welding processes, Directed Energy Deposition
utilizes thermal energy to melt and fuse layers of material
together to create a 3D object.
Different processes meet different needs
12. Typical 3D
Printing Flow
Chart
Step 1: CAD models must be translated into a file format that a 3D
printer can understand.The file format differs from machine to
machine.
Step 2: Specialized slicer software is used to prep the model for
printing.This software is used to determine all the variables for the
final print.The variables include temperature, speed, orientation, fill
construction, support structures, print quality, as well as wall and
shell thicknesses.
Step 3:The slicer software creates a file that can be understood and
followed by the 3D Printers. In the case of a FDM printer (Fused
Deposition Machine) a G-Code file is created with the file extension
.x3g
Step 4: 3D printers are configured per manufactures guidelines.
(Leveling, Preheating, Cleaning, installing proper print media etc.)
Step 5: 3D print is started.
Step 6: Once completed, post processing will be required to make
sure all prints are within acceptable tolerances and have no defects.
14. PLUS +
• AM can print complex 3D geometries with
internal features without any tooling
• Reduced waste compared to machining
• Part can be printed directly from the 3D model
without the need for a drawing
• Prototypes can be made quicker, allowing
designers to check different iterations resulting
in a quicker design cycle phase
• No or less tooling for smaller batches compared
to traditional machining
• Production tooling can be printed
• Different materials can be mixed during the
printing process to create a unique alloy
• Different sections of the part can be different
variants of the same alloy
Advantages
15. PLUS +
• Because the technology is still in its infancy, the
build process is slow and costly
• High production costs because of the equipment
cost
• Various post-processing required depending on the
type of additive manufacturing used
• Small build volume compared to other
manufacturing part size such as sand casting
• Poor mechanical properties hence need post-
processing
• Poor surface finish and texture compared
manufacturing processes like CNC and investment
casting.
• The strength of the parts is comparably weaker
compared to manufacturing processes such as Die
casting, Investment casting and CNC machining.
Disadvantages