Patterns and Allowances 

sir you have cleared all the concepts very nicelly. thanks for guidance.

Very helpfull and sir you are cleared my all doubts tnq very much

Sir, I have a doubt about the solidification shrinkage. This is avoided by the liquid metal which is in the riser. But, when the molten metal will come in to cavity at that time the outermost parts of the casting is already solidified so, how can it will mix with?????

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Excillent Video

thank you so much sir nice video

What an explanation 🤩 Thank you sir🙏

Excellent explanation sir

Thank you. ..so much. Excellent speech

Thank you so much .really well explained . greetings from Tunisia.

I saw Sayan

Shell pattern, follow board pattern, segmental pattern????

Tnq sar

Super sir

nice lecture

Viry nice

Thank you sir

To so a gratitude i must say thank u sir and thanku nptel for enhancing the quality of engineering lectures.

Thank you

I saw Sayan

Internal shrinkage allowance do we increase the size of decrease?

Good

most of the concept cleared

Thank you Sir.

Great work sir please keep it up

so nice