Shell Molding - Expandable Mold Casting Processes

In this class we are going to study:
Shell Molding
a. Differences between sand casting and Other Expandable Mold-Casting Processes.
b. Overview of sheel molding.
c. Advantages of shell molding.
d. Disadvantages of shell molding.
e. Examples of parts made using shell molding.
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[@sahilkhanpathan9198]

Your 4 minute video is far better than an hour lecture 👏

[@mohdabdulmoid6226]

Step by step with the help of diagram and labelling is the best way to understand and remember the concept. Thanks 👍

[@SHOOTREPOST]

It's really helpful...can we get some more videos on engineering topics in this same manner ...where we get to see figures n learn ..

[@Artines999]

Thanks.
The advantages and disadvantages of this method on Wikipedia:
►Advantages:
•Shell molding can be completely automated for mass production.
•The high productivity, low labor costs, good surface finishes, and precision of the process can more than pay for itself if it reduces machining costs.
•There are few problems due to gases, because of the absence of moisture in the shell, and the little gas that is still present easily escapes through the thin shell. When the metal is poured some of the resin binder burns out on the surface of the shell, which makes shaking out easy.
•Complex shapes and fine details can be formed with very good surface finish, high production rate, low labor cost (if automated).
•Low tooling cost, Little scrap generated.
•Very large parts and complex shapes can be produced.
•Many material options.
•Low tooling and equipment cost.
•Scrap can be recycled.
•Short lead time possible.
►Disadvantages:
•The gating system must be part of the pattern because the entire mold is formed from the pattern, which can be expensive.
•High equipment cost.
•The resin for the sand is expensive, although not much is required because only a shell is being formed.
•Poor material strength.
•High porosity possible.
•Secondary machining often required.
•High labor cost if done manually.

[@SatyamTechnicalTyagi]

I like the way u teach 👍🏻

[@fizasheikh491]

Thankyou for this amazing video. It made everything so much more easier to understand.

[@user-wr8yg8ix6r]

you're really pretty tho

[@swarnimpatil5178]

Helpful

[@SHOOTREPOST]

True ...it's helpful

[@user-ee3ck4iu8w]

شكرا

[@gouravmehta4030]

Best 👌

[@jamesligan1160]

Expendable*

[@46WDiSP75]

Good video but the mould in shell mould casting is EXPENDABLE not expandable.

[@fahmidaakterdina875]

why automated voice? really hate this thing