FreeForm: Roll Pass Design for Round-Oval Pass Sequence


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This application designs pass from a round (or nearly round) shape through RD-OV sequence into a round final shape. To load existing data, go to Data Input/Output Page page and see example.

Unit system
Hot or cold dimension
Stock material
Entry temperature at the first pass
Speed at the exit of the last pass
Total number of passes	Let system estimate (C-steel)



Entry diameter (or height if not a perfect round)	Perfect round
Entry width, top radius and side radius
Entry cross-sectional area	Calculate it
Exit cross-sectional area
Change temporary data life (default: 8 hours)

Data Input/Output Page Pass Data Page

This application is now a test version. We welcome you to provide suggestion and to report potential error!

Note

(1) Unit system

	English	Metric
Size	inch, square inch	mm (millimeter), square mm
Temperature	deg. F	deg. C
Speed	feet per minite (FPM)	meter per second (m/s)
Angle	degree (e.g. 120 deg.)	degree (e.g. 120 deg.)

(2) If you select "Hot Dimension" above, please enter hot size; If you select "Cold Dimension", enter cold size and let system calculate them into hot size based on the thermal expansion coefficient of the given grade. All data in the next screen are displayed in hot dimension.

Help and Validation

Technical terms used in the data input screens
Technical terms used in the data report screens
FreeForm RD-OV User Instruction
Introduction to Shinokura spread model
Shinokura-Li spread model and validation
Forward slip model validation
Application notes for metal pass online programs
Cookies and related setup
How to create an account and pay for tokens
Metal Pass user agreement

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