# Shared Protocol for the Kick-Off Meeting PyRolL Validationfunding

[](https://hackmd.io/qEFEYzttS5SNohQTxoeKhA)

Date: 19th April 2024
Time: 08:30 - 13:00
Participants:

- Prof. U. Prahl (Institute of Metal Forming)
- Dr. M. Schmidtchen (Institute of Metal Forming)
- R. Pfeifer (Institute of Metal Forming)
- M. Stirl (Institute of Metal Forming)
- M. Weiner (Institute of Metal Forming)
- C. Renzing (Institute of Metal Forming)
- Dr. P. Schmidt (CodeForThought)
- Dr. C. Overhagen (University Duisburg-Essen)
- A. Uhlmann (Saxeed)
- T. Stürzel (Ingenieurbüro Stürzel)
- D. Pigalev (Walzengießerei-Hartgußwerk Quedlinburg GmbH)
- C. Schmidt (Walzengießerei-Hartgußwerk Quedlinburg GmbH)
- D. Flor (Hyperion M&T)
- A. Orlov (Prisma Junior Consulting e.V.)
- A. Krug (Walzengießerei Coswig GmbH)
- G. Rothenbucher (Plansee AG)
- F. Belini (ESF Elbe-Stahlwerke Feralpi GmbH)
- Dr. A. Gruhl (ESF Elbe-Stahlwerke Feralpi GmbH)
- A. Angelini (ESF Elbe-Stahlwerke Feralpi GmbH)
- J. Müller (ArcelorMittal Hamburg)
- C. Kaufmann (Steeltec AG)
- K. Metodiev (Steeltec AG)
- W. Vogel (SMS group GmbH)
- Dr. K. van Putten (SMS group GmbH)
- Dr. T. Nerzak (SMS group GmbH)
- C. Schäfer (Kocks Technik GmbH)
- L. Preis (FNsteel B.V.)
- A. de Vos (FNsteel B.V.)
- D. Yameogo (Asperam Alloys)
- M. Molter (Saarstahl AG)

> **_NOTE:_** Presentations: [](https://doi.org/10.5281/zenodo.10974647)
> (Available after the meeting)

If you have further questions to the meeting or the validation funding project, please refer to:

M. Stirl: [e-mail] (Economical Validation)
R. Pfeifer: [e-mail] (Technical Validation)

If you have further questions regarding PyRolL or activieties of the International Center of Groove Pass Design you can reach out to the team using: [e-mail]

## First Presentation: "Introduction to the Institute of Metal Forming" (U. Prahl)

### Questions:
--

## Second Presentation: "Fast Simulation and Design of Rolling Processes for Long Products" (C. Overhagen)

### additional Notes:

Slide 19:
- Equations Nr. 8 and 13 are the most used ones
- Only Equation Nr. 8 is extrapolable beyond the spectrum of measured data-sets; Nr. 13 is only interpolable within the scope of these data-sets

Slide 21:
- Temperature model is 1D-axisymmetric; but is extended to also output core-, surface- and average roll stock temperatures

Slide 24:
- MPC can suggest a pass sequenceand number of needed stands if input- and output dimensions and the wanted elongation distribution over all passes are given

### Comments:

Interstand tension is now in Pyroll => transferred from MPC (KvP)
### Questions:

M. Molter
Q: Is there a Version of MPC available for trial?
A: You can reach find a version after contacting Mr. Overhagen ([e-mail])

### Suggestions:

M.Molter
Also add general possibility to use predefined mill Layouts like in MPC - Currently this can be tedious to do each time

## Third Presentation: "The Path to PyRolL: Simulation of Groove Rolling at the IMF" (M. Schmidtchen)

### additional Notes:

Slide 28:
- PyRolL project should allow better access to and co-operation on the subject of groove rolling due to its open access idea

Slide 30:
- Core module handles general groovve rolling topic - it has the knowledge of how groove rolling basically functions
- Plugins increase the capabilities of PyRolL
- Extensions work on the results of PyRolL and further process or use them

Slide 33:
- most developers of PyRolL are temporarily funded, making future support and work on PyRolL dependent on its success

### Questions:
--

## Fourth Presentation: "Open Source Software – Demystified!" (P. Schmidt)

### additional Notes:

Slide 3/4:
- Why Open-Source?
- success of other big institutions shows the viability of its successs (jupyter, Sony (MXF), Tensorflow (Google), React JS (Meta/ Facebook), ...)

Slide 5:
- many countries require open science or open source, if the Projects are sufficiently publicly funded

Slide 8:
- increasing unhappyness of people with concept an distribution of software
- too restrictive licenses, bound to vendors, ...

Slide 14:
- permissive licenses most popular/ widely used
- grants use rights and forbids almost nothing

Slide 26:
- Nadia Eghbal, Working in Public, Stripe Press 2020, ISBN: 0578675862, 9780578675862

Slide 30:
- several associations already available, making open-source projects more findable

### Questions:
--

## Fifth Presentation: "Introduction Saxeed" (A. Uhlmann)

### additional Notes:

Slide 12:
- lean startup, not more features than necessary @MSC

### Questions:

--

## Sixth Presentation: "PyRolL Validation Funding: Objectives and Procedure" (M. Stirl, R. Pfeifer)

### Questions:
--
### Discussion:

Feedback from G. Rothenbucher:

- Start working like a real software project
- The project needs more user involvement
- Management side of the project needs to be enhanced
- Set up a regular newsletter with news about the project and current developing status
- Maybe setting up a sort of working group for PyRolL is feaseable
- fenix project as an example regarding contribution.
- Discussion forum setup with direct response
- Setup a matrix server for discussion regarding project development, discussions
- Explore further
- Questions regarding workflow with PyRolL, discussion should focus on using the Software not for direct technological questions.
-
- too eaerly for a GUI, first find a general use-rythm or workflow of PyRolL
- more automation is needed
- current workflow too tedious
- once you setup general skeleton (jupyter notebook) its easier
- should be in the core or provided by PyRolL itself
- flowchart: how to use PyRolL
- newsletters
-

M. Schmidtchen:

- currently Jupyter notebooks used as user-Interface/"GUI"
- what are the needs for a GUI (read in data; use with pandas; diagrams)
- first as a Jupyter notebook
- combines programming features with interactibility,
- current goal of PyRolL is to find good use case of the core