Mechanical Engineering - Workshop Technology - Discussion
Discussion Forum : Workshop Technology - Section 1 (Q.No. 5)
5.
A taper provided on the pattern for its easy and clean withdrawl from the mould is known as
Discussion:
20 comments Page 1 of 2.
Parth Gohil said:
2 years ago
When the pattern is removed from the mould, the parallel surface to the withdrawal direction is slightly damaged and converted into slightly tapered surfaces. These parallel surfaces on the pattern are slightly tapered to compensate for these changes (nearly 1 -2 degrees).
This allows for easy removal of the pattern from the mould while having no effect on the casting process. Draft allowances are the changes made to the pattern surface to protect it from damage.
This allows for easy removal of the pattern from the mould while having no effect on the casting process. Draft allowances are the changes made to the pattern surface to protect it from damage.
(1)
Sai ram said:
7 years ago
What is distortion allowance? Please explain it.
MUZAKIR said:
7 years ago
Please explain the Draft allowance.
Naveen said:
7 years ago
Distortion allowance.
Dilipreddy said:
7 years ago
Please explain this clearly.
Abinesh said:
8 years ago
Castings are designed with rounded edges and corners so as to.
Dchatterjee said:
8 years ago
The tool used for lifting the pattern from the mould is called?
Venkat said:
8 years ago
What is draft allowances?
Akash said:
8 years ago
It should be Shrinkage allowance.
Miqdhad said:
9 years ago
The contraction allowance on the pattern is provided to take care of.
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