Thinning percentage of Ellipsoidal dish end.

[Kisan Gamane]

Dear all

Anybody can tell me about how many percentage thicness will be gets thin in ellipsoidal dish end?

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Thanks & regards

Kisan Gamane

 

ॐ सर्वे भवन्तु सुखिनः, सर्वे सन्तु  निरामयः
सर्वे  भद्राणि  पश्यन्तु, मा कश्चिद दुखभाग भवेत्.
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May all have prosperity and good luck. May none suffer or fall on evil days.
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[T. Rizal H.]

Dear Mr. Kisan,

Better you ask to your head maker.
It is depend on making process, plate thickness and material type.

Small size of ED head can be made using forming dies, such as making CAP.
Big size and thin thickness can be finished by spinning in cold
condition, meanwhile thicker plate made in hot condition.
I used Hokkai japan to make certain size of head, they provide
"thickness after forming" in their catalog for our estimation when
design. In a formal, they will inform "guarantee thickness after
forming" in a quotation.

As a sample you can see such table from Hokkai China on
http://www.hokkai.com.cn/e22g.htm

And usually not use percentage.

Thank you.

Tex Riz

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Regards,

T. Rizal Hidayat

[manoj john]

In my experience thinning of ellipsoidal dished end will be between 12 - 17% if prperly formed.

Thanks & Regards.

[Chaitanya Purohit]

Dear Kisan,


Generally thinning will be in range of 4-12% depending on many factors / variables (such as - Forming method/ Process and machinery used, thickness of plate, Material type and grade, diameter of blank, etc).

Regards.
CK