additive manufacturing

By Santan &

Reyaz Ahmad Vali

additive manufacturing (AM), a process of

joining materials to make objects from 3D

model data, usually layer upon layer, as

opposed to subtractive manufacturing

methodologies.

ASTM F2792 - 12a Standard Terminology for Additive Manufacturing Technologies

Oxford Dictionaries:

make (something) on a large scale using machinery

make or produce (something abstract) in a merely mechanical way

Online Etymology Dictionary:

1560s, "something made by hand," from Middle French manufacture,

from Latin manu "hand" + factura "a working,“

3D printing, the fabrication of objects

through the deposition of a material using a

print head, nozzle, or another printer

technology.

ASTM F2792 - 12a Standard Terminology for Additive

Manufacturing Technologies

Many processes that have the common

theme, controlled material removal, are

today collectively known as subtractive

manufacturing, in distinction from processes

of controlled material addition, which are

known as additive manufacturing

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3D+Printed+Shoes

http://www.textually.org/3DPrinting/2012/12/31/photo1032.jpeg

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Free of complexity

Variety is free

No assembly required

Little lead time

Little skill manufacturing

Few constraints

Less waste

Apparel

Automobiles

Medical

Implantation ,Dental crowns

• ART

• Education and research

3D printing polished nickel

steel

Additive manufacturing is latest technology making inroads into

classroom.

Plastic in 3D Printing

Currently, plastics are the most widely used materials in

additive manufacturing, and the important ones are listed

below:

ABS - acrylonitile butadiene styrene or 'lego' plastic – a

very common choice for 3D printing

PLA - polylactic acid – Is available in soft and hard grades,

is becoming very popular and may overtake ABS in the

near future

MetalsSome of the metals used in 3D printing include the following:

•Steel

•Stainless steel

•Titanium

•Gold

•Silver

Other

Bio-Ink - Bio-ink comprises stem cells and cells

from a patient, which can be laid down, layer by

layer to form a tissue. Human organs such as blood

vessels, bladders and kidney portions have been

replicated using this technology.

Bone material- Bone material comprises silicon,

calcium phosphate and zinc.

.

If 3d printer is available

1. Design the structure in CAD software or

scan from a 3D scanner in case the structure

is so complicated.

2. Send the file to a 3D printer.

3. Wait till it gets printed as it is a layer by layer process.

4.Now you can see the miracle.