1. Comparative study of PLA and
PETG chiral honeycomb
structure
Under the guidance of Dr. Vasu M (Department of Production Engineering)
Name : Rishabh Raikwar
Roll no: 214221023
Specialization: IEM
3. Objective:-
To find out the load of failure and study
microscopic failure region under
compressive load.
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4. Introduction
Additive manufacturing
Additive manufacturing is a manufacturing with the help of digital technology, here
manufacturing is done layer by layer with high accuracy and preciseness. Here word additive
is being used because in AM (additive manufacturing) the product is manufactured by
adding material unlike the conventional methods where the material is being removed for
manufacturing.
Additive manufacturing is a layer-by-layer addition manner. The accuracy and
preciseness of the final product is very good because of the fact that the layer
thickness is very less, maybe in order of 0.1mm. Unlike to the conventional
method of production where the material is removed, Here the manufacturing
is done by depositing the layers one over the another, from idea of adding
layers the name comes to be additive manufacturing
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5. FDM
• FDM is most widely used type of AM, in FDM the printer use
thermoplastic material(thermoplastic, or Thermoset plastic, is any plastic
polymer material that becomes pliable formulable at a certain elevated
temperature and solidifies on cooling). In FDM technique, the employed
printers make use of a thermoplastic type of filament and this filament is
heated to reach its melting temperature, followed by layer-by-layer
extrusion, thereby leading to the fabrication of a 3-dimensional structure
• The semi-liquid thermoplastics extruded through the extrusion nozzle on
the printing bed/platform. The main working principle of FDM is that the
semi-liquid thermoplastic filament materials do not solidify immediately
when it extruded from nozzle on the printing platform, rather these semi-
liquid thermoplastics for a-particular layer under construction fuse
together, before curing/ solidifying into a layer-wise stacked part in
surrounding ambient temperature
20XX presentation title 5
7. Methodology
• Literature review.
• Ready to use filament is procured for study.
• Specimen for mechanical testing will be printed using FDM,
Specimen dimensions are as per ASTM(American society for
testing and materials)
>CAD file
> Transfer to machine using simplified 3D software
• Printing the specimens.
• Testing is to be done on specimen.
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8. PLA:- A thermoplastic monomer called polylactic acid (PLA) is produced
from organic, renewable resources like corn starch or sugar cane. Unlike to the
majority of plastics, which are made by extracting and polymerizing petroleum,
PLA is made without the use of fossil fuels. The equipment used to
manufacture petrochemical plastics could also be used to produce PLA,
making the process relatively inexpensive
PETG:- Polyethylene terephthalate glycol, commonly known as PETG or PET-
G, is a thermoplastic polyester that provides significant chemical resistance,
durability, and excellent formability for manufacturing. PETG can be easily
vacuumed and pressure-formed as well as heat-bent thanks to its low forming
temperatures. Due to its ease in being vacuum and pressure formed, as well as
heat bent, polyethylene terephthalate glycol is well-liked for a range of
industrial and commercial applications. Due of these characteristics, it is also
one of the most popular materials for 3D printing and other heat-forming
techniques. PETG works well for bending, die cutting, and routing procedures
as well
