PHOTO POLYMERIZATION AND POWDER BED FUSION PROCESS
● Photo polymerization: SLA-Photo curable materials – Process -
Advantages and Applications.
● Powder Bed Fusion: SLS-Process description – powder fusion
mechanism – Process Parameters – Typical Materials and Application.
Electron Beam Melting.
,Additive Mfg. Unit 03
,History
Sir John Herschel (1830s): Sir John Herschel, a British scientist, is often credited with early
observations of photopolymerization. In the 1830s, he experimented with the effects of light on
chemicals and coined the term "photography" to describe the process of using light to create
images.
Peter DeForest (1980s): Peter DeForest, an American engineer and inventor, is credited with
developing the first practical stereolithography apparatus (SLA) in the mid-1980s. This invention
marked a significant milestone in the use of photopolymerization for 3D printing.
Chuck Hull (1986): Chuck Hull, also known as the "father of 3D printing," invented the
stereolithography apparatus and filed a patent for the technology in 1986. His work revolutionized
the field of additive manufacturing and made photopolymerization-based 3D printing accessible
for various applications.
, Photopolymerization
● Photopolymerization is a method that involves the solidification of photo-sensitive resin utilizing UV
light. It is used by different 3D printing processes such as 3D Digital Light Processing (DLP),
MultiJet printers, and Stereolithography (SLA).
● Photopolymerization is the curing process that’s characterized by the use of ultraviolet (UV) light. In
3D printing, it’s used to cure the deposited material. When exposed to UV light, the deposited
material cures. Curing results in physical changes to the deposited material, turning it from a liquid
or semi-solid state to a solid state.
● Among different 3D printing techniques, photopolymerization-based processes offer flexibility over
the final In photopolymerization, a photoinitiator is often added to the liquid resin. When the
photoinitiator is exposed to a specific wavelength of light (usually ultraviolet or visible light), it
initiates a chemical reaction that causes the resin to cross-link and harden.
● This process can be used in different 3D printing techniques, including VAT photopolymerization
(stereolithography) and digital light processing (DLP), among others.properties of the 3D printed
materials using versatile polymer chemistry. The approach to 3D photopolymerization is based on
using monomers/oligomers in a liquid state in photoinitiators' presence.
●
● Photo polymerization: SLA-Photo curable materials – Process -
Advantages and Applications.
● Powder Bed Fusion: SLS-Process description – powder fusion
mechanism – Process Parameters – Typical Materials and Application.
Electron Beam Melting.
,Additive Mfg. Unit 03
,History
Sir John Herschel (1830s): Sir John Herschel, a British scientist, is often credited with early
observations of photopolymerization. In the 1830s, he experimented with the effects of light on
chemicals and coined the term "photography" to describe the process of using light to create
images.
Peter DeForest (1980s): Peter DeForest, an American engineer and inventor, is credited with
developing the first practical stereolithography apparatus (SLA) in the mid-1980s. This invention
marked a significant milestone in the use of photopolymerization for 3D printing.
Chuck Hull (1986): Chuck Hull, also known as the "father of 3D printing," invented the
stereolithography apparatus and filed a patent for the technology in 1986. His work revolutionized
the field of additive manufacturing and made photopolymerization-based 3D printing accessible
for various applications.
, Photopolymerization
● Photopolymerization is a method that involves the solidification of photo-sensitive resin utilizing UV
light. It is used by different 3D printing processes such as 3D Digital Light Processing (DLP),
MultiJet printers, and Stereolithography (SLA).
● Photopolymerization is the curing process that’s characterized by the use of ultraviolet (UV) light. In
3D printing, it’s used to cure the deposited material. When exposed to UV light, the deposited
material cures. Curing results in physical changes to the deposited material, turning it from a liquid
or semi-solid state to a solid state.
● Among different 3D printing techniques, photopolymerization-based processes offer flexibility over
the final In photopolymerization, a photoinitiator is often added to the liquid resin. When the
photoinitiator is exposed to a specific wavelength of light (usually ultraviolet or visible light), it
initiates a chemical reaction that causes the resin to cross-link and harden.
● This process can be used in different 3D printing techniques, including VAT photopolymerization
(stereolithography) and digital light processing (DLP), among others.properties of the 3D printed
materials using versatile polymer chemistry. The approach to 3D photopolymerization is based on
using monomers/oligomers in a liquid state in photoinitiators' presence.
●
