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[Wildcard Week]-

[Composites]-

Tasks for the week:

Assignments-:

Design and produce something with a digital fabrication process (incorporating computer-aided design and manufacturing) not covered in another assignment, documenting the requirements that your assignment meets, and including everything necessary to reproduce it. Possibilities include (but are not limited to) composites, textiles, biotechnology, robotics, and cooking.

-I decided to work on composites.design and fabricate a 3D mold and produce a fiber composite part in it.

A Material Safety Data Sheet (MSDS) for safe practices

This data sheet is useful because at the beginning we don't know anything about the resin density,flash point but with the help of tis we can use it with good proportion.

A Material Safety Data Sheet (MSDS) is a document that provides health and safety information about products, substances or chemicals that are classified as hazardous substances or dangerous goods. MSDS's provide information on: the manufacturer or importing supplier.

Safety Data Sheet{EPOXY HARDENER}

TECHNICAL DATA SHEET {EPOXY HARDENER}

Designing a 3D mold -:

I designed one random surface having curves in solidwork and decided to make composite of that shape.

plate design in solidwork

Next step solidwork file open in slicer software-

I learned the fusion slicer software in this assignment.

I imported a solid work file into slicer and set the parameter.I was set all dimension and my mdf thickness

Set the dimension of the material which you will use for cutting. For example, I used 600*300 MDF having 3.4mm thickness sheet.I edited the dimension in mm.

And next step 3mm MDF sheet cut the epilog

Parts notch thickness was very thick but it,s good for pressfit and I am so happy my pressfit design

assemble the parts

The mould parts is ready now i join that parts for making assembly

Assembly	My design is complete pressfit

Then I take transparent paper for wrapping on the plate outside because I us the natural fiber and it in irregular shape so I put the transparent paper on plate and fix it

Next step epoxy hardener and resin-:

Epoxy resin comes in two part, one of which is hardener and other one is resin itself. Both individually can't do anything, when they are mixed the curing process starts and then after curing period it becomes rock solid. Curing time depends upon the environmental parameters which are:

-Temperature

-Humidity

-Ratio of hardener and resin

I was used epoxy and hardener blow is image .

This is mould and jute I used it with resin

Burlap

Burlap has not received quite the same level of respect as its cousin canvas, but it can be used for similar purposes. Tote bags made of this fabric often replace paper or plastic as an ecological choice for grocery packing. Burlap is also biodegradable, which means all of those potato and apple sacks should eventually disintegrate without harm to the environment. Using jute and hemp fibers also keeps these alternative industries economically viable.

I am using burlap sheet

My design size burlap sheet

Then I take the epoxy and hardener its ratio is 1:2 I put that on the dish I tapping at all the side then I put the water bag and the resin equally distributed around the mould

I am using 4 layer burlap

Each layer properly using the ratio

These are the material I had used in composite resin and hardener is in 1:2 ratio

We are working in group-

In this case I used 3 layer of jute first i apply resin on dish then put on that jute then apply resin again and for finishing i again apply resin .

Final shape for plate

This is the vacuum bagging setup which we have in our Lab.

Once the layering is done, I clamped the composite under vacuum bag.

After 6 hr I remove my composite from the mold and it become hard and good for future use

My Final mold

Final mold

Then i cut Out side parts

my mould and final plate

Good looking my final mold plate

Below you can see the quality of my plate and video

"

First time I work on composite I previously never handle the resin but now I know the exact proportion of my composite material

To download my files click here

Learning Outcomes-

{In this assignment I learned about Composites and data sheet which is really best for experiment the Composites and epoxy and hardener and Good experience in gorp work. }