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contact@tacquet-industries.fr

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TACQUET INDUSTRIES sends its best wishes for a happy new year !

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TACQUET INDUSTRIES sends its best wishes for a happy new year !

Dec 23 2024
Rehabilitation of a turbine COO

Coo-Trois-Ponts Hydroelectric Power Plant, France

REHABILITATION OF A TURBINE

A final intervention to finish the year 2024, machining of group 2 of the magnificent Coo Trois-Ponts power plant.

Rehabilitation for a future overpower:
1st step machining of the labyrinth with different bores (about 2500mm diameter) and surface to be realized.
2nd stage machining of the holes at the level of the spiral tarpaulin. (5500mm diameter)

LinkedIn link

PRE-WORK & MACHINE SETUP

Installation of our machine in the turbine and adjustment with the help of the Laser Tracker

OVERVIEW AFTER WORK

HYDRAULIC & DAM HOME
Nov 27 2024
Destruction axe Safran

Destruction axe Safran

🚀 Mission accomplished! 🚀
 
⚙️Destruction of a Safran Ø430 axle with a length of 887 mm, successfully completed. Thanks to the customer for their trust and to the technicians for their precision and efficiency, guaranteeing an intervention in compliance with safety standards.
 
Together, we continue to meet challenges with passion and expertise💪✨
 

LinkedIn Link

Publié le 27/11/2024

Oct 10 2024
Restoration of a Turbo Food Pump

Restoration of a Turbo Food Pump

🔧 Emergency Response at TACQUET INDUSTRIES ⚙️

At the beginning of 2024, in the middle of the winter season, TACQUET INDUSTRIES responds to an urgent call for the restoration of a Turbo Food Pump. This critical situation impacts the operator’s electricity production, which is only stabilized at 47% of capacity.
📉 The strategic and financial stakes are high!

🚀 An expert team is immediately deployed to the site. What’s their mission? Assess the means needed to restore this vital equipment. In no time, a thorough study confirms the procedure and establishes a provisional schedule.

OBJECTIVES
– Dimensional and geometric controls of the upper and lower body combining sophisticated metrology «SCAN 3D & TRACKER LASER» as well as conventional
– Destruction of damaged rushes
– Mechanical crimping of new reeds
– Recovery of the pitting and sealing ranges of these reeds
– Dimensional and geometric checks for acceptance

Days later, our teams start construction 👷
Two machines and a staff of ten technicians are deployed to optimize response time. The checks and analyses are carried out before the first machining operations begin.

💪 The flexibility of our design office, workshop and stakeholders has made it possible to achieve this mission successfully, while respecting our client’s tight schedule.

TACQUET INDUSTRIES, always at your service, even in the most critical moments ! 🚀🔧

LinkedIn Link

Publié le 02/10/2024

Mar 22 2024
Machining 2 flanges in planing

Machining 2 flanges in planing

– The first operation consisted of surfacing the flange, from diameter 2570mm to diameter 2710mm, in order to eliminate any surface defect with a roughness of Ra1.6/3.2.

– Then, a second flange was worked, with a surface needed to pass the diameter 3000mm, eliminating any defect to obtain a roughness of Ra1.6/3.2.

Publié le 22/03/2024

Feb 21 2024
Machining key bars on stator with 2 parallel milling arms

Published on 21/02/2024

Machining key bars on stator with 2 parallel milling arms

A successful first for Isabelle ✅ 🚨

Machining key bars on stator with 2 parallel milling arms.

Diameter <5000mm

Height <3000mm

Material removal <17mm

800 M10 tapping holes

An extraordinary site for an extraordinary machine. ‼️‼️

A grueling construction site but we can be proud of us guys.🤩💪🏻

Thanks to the client for the trust and to all the colleagues who participated in this project.
🥇⛷️🎿🚁⚒️⚙️

Source LinkedIn

Feb 2 2024
Machining and grinding of the sidewall of bandage Ø4470

Published on 02/02/2024

Machining and grinding of the sidewall of bandage Ø4470

New mission successfully completed 🏆

⚙ Machining and grinding of the sidewall of bandage Ø4470 on a width of 160mm with a slope at 11.5° and the advance stop of the furnace width 160mm at 11.5°

Congratulations to the TACQUET INDUSTRIES teams our technicians on site for their investment and performance 💪😎

Source LinkedIn

Jan 18 2024
Wheel coat machining (Kaplan type) 𝘍𝘌𝘚𝘚𝘌𝘕𝘏𝘌𝘐𝘔

Fessenheim Hydroelectric Power Plant, France

Wheel coat machining (KAPLAN types)

In January 2022, we worked on the G4 Group (Kaplan type) of the Fessenheim Hydroelectric Power Plant, in France, for our client EDF. At the beginning of January 2024, our teams carried out an identical operation on Groupe G3 de la Centrale.

Videos

Enlarge the cylindrical and spherical part of the existing wheel mantle by 3 mm radius, while copying the shape already present. The machining had to be done on a height of 1700mm.

  • Final side of cylinder and sphere: Ø6686mm 0.1 mm radius
  • Surface Condition: Ra 3.2

Our intervention took place in several stages:

  • Step 1: Analysis of the subject in our Design Office (feasibility, 3D modeling of the turbine, study and calculations to determine the profile of our shape copying element, implementation of our machine in the 3D work environment).
  • Step 2: Carrying out pre-work checks (Laser Tracker) by an external company.
  • Step 3: Installation of our machine on site and machining.
  • Step 4: Realization of after-work checks (Laser Tracker) by an external company.

3D MODELLING

Calculations were used to study and verify the shape of the copying surface for machining.

PRE-WORK & MACHINE SETUP

Our machine was installed in the turbine and adjusted with the help of the Laser Tracker

OVERVIEW AFTER WORK

HOME HYDROELETRIC PLANT
Jan 16 2024
ISABELLE in action

Published on 16/01/2024

ISABELLE in action !

😜 Here is, as promised, a small video 🎬 of the double milling of the stator bars in progress 💪 .

Keep it up, guys, it’s beautiful 😎 .

Thank you to JEUMONT Electric International and EDF Renouvelables for your trust.

Source LinkedIn

Dec 14 2023
Turbine shaft repair

Published on 14/12/2023

𝐑𝐞𝐩𝐚𝐢𝐫 𝐨𝐟 𝐚 Ø𝟐𝟎𝟎 𝐭𝐮𝐫𝐛𝐢𝐧𝐞 𝐬𝐡𝐚𝐟𝐭 𝐨𝐯𝐞𝐫 𝐚 𝐥𝐞𝐧𝐠𝐭𝐡 𝐨𝐟 𝟒𝟓𝟎𝐦𝐦

𝐷𝑢𝑒 𝑡𝑜 𝑎 𝑝𝑟𝑜𝑛𝑜𝑢𝑛𝑐𝑒𝑑 𝑤𝑒𝑎𝑟 𝑎𝑛𝑑 𝑡𝑒𝑎𝑟 𝑜𝑢𝑟 𝑐𝑢𝑠𝑡𝑜𝑚𝑒𝑟 𝑎𝑠𝑘𝑒𝑑 𝑢𝑠 𝑓𝑜𝑟 𝑎 𝑟𝑒𝑝𝑎𝑖𝑟 𝑠𝑜𝑙𝑢𝑡𝑖𝑜𝑛.

𝑊𝑒 𝑠𝑒𝑎𝑟𝑐ℎ𝑒𝑑 𝑡ℎ𝑒 𝑙𝑎𝑠𝑒𝑟 𝑡𝑟𝑎𝑐𝑘𝑒𝑟 𝐴𝑃𝐼 𝑀𝑒𝑡𝑟𝑜𝑙𝑜𝑔𝑦 𝑓𝑜𝑟 𝑡ℎ𝑒 𝑟𝑖𝑔ℎ𝑡 𝑟𝑒𝑓𝑒𝑟𝑒𝑛𝑐𝑒𝑠.

𝑂𝑢𝑟 𝑜𝑟𝑏𝑖𝑡𝑎𝑙 𝑚𝑎𝑐ℎ𝑖𝑛𝑒 𝑎𝑙𝑙𝑜𝑤𝑒𝑑 𝑢𝑠 𝑡𝑜 𝑑𝑒𝑙𝑎𝑟𝑑𝑒𝑟 10𝑚𝑚 𝑡𝑜 𝑡ℎ𝑒 𝑟𝑎𝑑𝑖𝑢𝑠 𝑤𝑖𝑡ℎ 𝑡𝑜𝑙𝑒𝑟𝑎𝑛𝑐𝑒𝑠 𝑖𝑛 𝑡ℎ𝑒 ℎ𝑢𝑛𝑑𝑟𝑒𝑑𝑡ℎ.

𝐹𝑜𝑙𝑙𝑜𝑤𝑖𝑛𝑔 𝑡ℎ𝑖𝑠 𝑚𝑎𝑐ℎ𝑖𝑛𝑖𝑛𝑔 𝑤𝑒 𝑚𝑎𝑑𝑒 ℎ𝑎𝑙𝑓 𝑠ℎ𝑒𝑙𝑙𝑠 𝑖𝑛 𝑜𝑢𝑟 𝑤𝑜𝑟𝑘𝑠ℎ𝑜𝑝𝑠 𝑎𝑛𝑑 𝑝𝑢𝑡 𝑡ℎ𝑒𝑚 𝑖𝑛 𝑝𝑙𝑎𝑐𝑒 𝑏𝑦 𝑤𝑒𝑙𝑑𝑖𝑛𝑔 𝑤𝑖𝑡ℎ 𝐸𝑑 𝑊𝑒𝑙𝑑𝑖𝑛𝑔 𝑓𝑜𝑟 𝑎 𝑝𝑒𝑟𝑓𝑒𝑐𝑡 𝑡𝑖𝑔ℎ𝑡𝑒𝑛𝑖𝑛𝑔 (𝑤𝑖𝑡ℎ𝑜𝑢𝑡 𝑤𝑒𝑙𝑑𝑖𝑛𝑔 𝑜𝑛 𝑡ℎ𝑒 𝑠ℎ𝑎𝑓𝑡).

𝐴𝑓𝑡𝑒𝑟 𝑤𝑒𝑙𝑑𝑖𝑛𝑔 𝑤𝑒 𝑚𝑎𝑐ℎ𝑖𝑛𝑒𝑑 𝑎𝑛𝑑 𝑔𝑟𝑜𝑢𝑛𝑑 𝑡𝑜 𝑝𝑢𝑡 𝑏𝑎𝑐𝑘 𝑎𝑙𝑙 𝑡ℎ𝑒 𝑑𝑖𝑚𝑒𝑛𝑠𝑖𝑜𝑛𝑠 𝑎𝑡 𝑡ℎ𝑒 𝑜𝑟𝑖𝑔𝑖𝑛 !!

𝐴𝑡 𝑡ℎ𝑒 𝑡𝑖𝑚𝑒 𝑜𝑓 𝑡𝑜𝑑𝑎𝑦 𝑡ℎ𝑒 𝑡𝑢𝑟𝑏𝑖𝑛𝑒 ℎ𝑎𝑠 𝑓𝑜𝑢𝑛𝑑 𝑎 𝑠𝑒𝑐𝑜𝑛𝑑 𝑦𝑜𝑢𝑡ℎ 𝑎𝑛𝑑 𝑖𝑡 𝑡𝑢𝑟𝑛𝑠 𝑝𝑒𝑟𝑓𝑒𝑐𝑡𝑙𝑦.

𝐴 𝑟𝑒𝑎𝑙 𝑝𝑙𝑒𝑎𝑠𝑢𝑟𝑒 𝑡𝑜 𝑤𝑜𝑟𝑘 𝑜𝑛 𝑗𝑒𝑤𝑒𝑙𝑠 𝑜𝑓 𝑡𝑒𝑐ℎ𝑛𝑜𝑙𝑜𝑔𝑦 𝑜𝑓 𝑡ℎ𝑒 𝑡𝑖𝑚𝑒.

𝑇ℎ𝑎𝑛𝑘 𝑦𝑜𝑢 𝑡𝑜 𝑜𝑢𝑟 𝑐𝑙𝑖𝑒𝑛𝑡 𝐸𝐷𝐹 𝑓𝑜𝑟 𝑡𝑟𝑢𝑠𝑡𝑖𝑛𝑔 𝑢𝑠 𝑓𝑜𝑟 𝑡ℎ𝑖𝑠 𝑠𝑒𝑟𝑣𝑖𝑐𝑒.

Source LinkedIn

Dec 13 2023
Double milling for ISABELLE

Published on 13/12/2023

𝑫𝒐𝒖𝒃𝒍𝒆 𝒎𝒊𝒍𝒍𝒊𝒏𝒈 𝒇𝒐𝒓 𝑰𝑺𝑨𝑩𝑬𝑳𝑳𝑬

𝑇𝐴𝐶𝑄𝑈𝐸𝑇 𝐼𝑁𝐷𝑈𝑆𝑇𝑅𝐼𝐸𝑆 𝑖𝑠 𝑐𝑢𝑟𝑟𝑒𝑛𝑡𝑙𝑦 𝑜𝑛 𝑎 𝑠𝑡𝑎𝑡𝑜𝑟 𝑖𝑛 𝑎 ℎ𝑦𝑑𝑟𝑜 𝑝𝑙𝑎𝑛𝑡 𝑓𝑜𝑟 𝑚𝑎𝑐ℎ𝑖𝑛𝑖𝑛𝑔 𝑏𝑎𝑟𝑠 𝑜𝑛 3𝑚 ℎ𝑖𝑔ℎ 𝑥 50 !

𝑇ℎ𝑒 𝑚𝑎𝑐ℎ𝑖𝑛𝑒 𝑤𝑎𝑠 𝑠𝑒𝑡 𝑢𝑝 𝑤𝑖𝑡ℎ𝑜𝑢𝑡 𝑎𝑛𝑦 𝑝𝑟𝑜𝑏𝑙𝑒𝑚𝑠 𝑡ℎ𝑎𝑛𝑘𝑠 𝑡𝑜 𝑜𝑢𝑟 𝑖𝑚𝑝𝑙𝑎𝑛𝑡𝑎𝑡𝑖𝑜𝑛 𝑠𝑡𝑢𝑑𝑦.

𝑇ℎ𝑒 𝑎𝑑𝑗𝑢𝑠𝑡𝑚𝑒𝑛𝑡𝑠 𝑤𝑒𝑟𝑒 𝑚𝑎𝑑𝑒 𝑖𝑛 𝑡ℎ𝑒 0.20𝑚𝑚 𝑡𝑜 𝑡ℎ𝑒 𝑐𝑜𝑚𝑝𝑎𝑟𝑎𝑡𝑜𝑟 𝑜𝑛 𝑡ℎ𝑒 𝑜𝑟𝑖𝑔𝑖𝑛, 𝑎𝑛𝑑 𝑤𝑒 𝑓𝑖𝑛𝑖𝑠ℎ𝑒𝑑 𝑤𝑖𝑡ℎ 𝑜𝑢𝑟 𝑐𝑢𝑠𝑡𝑜𝑚𝑒𝑟 𝑡ℎ𝑒 𝑙𝑎𝑠𝑒𝑟 𝑡𝑟𝑎𝑐𝑘𝑒𝑟 𝑠𝑒𝑡𝑡𝑖𝑛𝑔𝑠 𝑓𝑜𝑟 𝑐𝑜𝑛𝑐𝑒𝑛𝑡𝑟𝑖𝑐𝑖𝑡𝑦 𝑎𝑛𝑑 𝑝𝑎𝑟𝑎𝑙𝑙𝑒𝑙𝑖𝑠𝑚 𝑡𝑜 𝑡ℎ𝑒 𝑐𝑦𝑙𝑖𝑛𝑑𝑒𝑟 𝑖𝑛 𝑡ℎ𝑒 𝑡𝑒𝑛𝑡ℎ.

𝐶𝑢𝑟𝑟𝑒𝑛𝑡𝑙𝑦 𝑚𝑖𝑙𝑙𝑖𝑛𝑔 𝑖𝑠 𝑢𝑛𝑑𝑒𝑟𝑤𝑎𝑦, 𝑏𝑢𝑡 𝑙𝑒𝑡’𝑠 𝑘𝑒𝑒𝑝 𝑎 𝑔𝑟𝑒𝑎𝑡 𝑣𝑖𝑑𝑒𝑜 𝑓𝑜𝑟 𝑎 𝑓𝑢𝑡𝑢𝑟𝑒 𝑝𝑜𝑠𝑡

Source LinkedIn

Dec 4 2023
Site preparation

Published on 04/12/2023

𝑺𝒊𝒕𝒆 𝒑𝒓𝒆𝒑𝒂𝒓𝒂𝒕𝒊𝒐𝒏 🚧

𝘉𝘦𝘩𝘪𝘯𝘥 𝘵𝘩𝘦 𝘴𝘤𝘦𝘯𝘦𝘴 𝘱𝘳𝘦𝘱𝘢𝘳𝘢𝘵𝘪𝘰𝘯𝘴 𝘰𝘧 𝘰𝘶𝘳 𝘵𝘸𝘰 𝘭𝘢𝘳𝘨𝘦𝘴𝘵 𝘮𝘢𝘤𝘩𝘪𝘯𝘪𝘯𝘨 𝘮𝘢𝘤𝘩𝘪𝘯𝘦𝘴 𝘰𝘯 𝘴𝘪𝘵𝘦

𝘈 𝘴𝘮𝘢𝘭𝘭 𝘸𝘪𝘯𝘬 𝘧𝘰𝘳 𝘐𝘴𝘢𝘣𝘦𝘭𝘭𝘦 𝘸𝘩𝘰 𝘳𝘦𝘴𝘶𝘮𝘦𝘴 𝘴𝘦𝘳𝘷𝘪𝘤𝘦

Source LinkedIn

Dec 4 2023
Intervention on stator of group G1 𝘝𝘐𝘓𝘓𝘈𝘙𝘖𝘋𝘐𝘕

Villarodin hydroelectric power station, France

Intervention on Stator of group G1

Our teams are currently working on the G1 group stator carcass of the Villarodin Hydroelectric Power Plant, in France, for our customer JEUMONT ELECTRIC.

Videos
  • Complete destruction of 50 key bars by milling (3.2 m high) respecting a rib established by the customer relative to the axis of the carcass
  • 800 M10 drilling and tapping for fixing new bars
  • Rib of bars machined relative to carcass axis: 0.1 mm

Our intervention took place in several stages:

  • Step 1: Analysis of the subject in our Design Office (feasibility, implementation of our machines in the 3D working environment).
  • Step 2: Carrying out pre-work checks (Laser Tracker) by an external company.
  • Step 3: Installation of our machine on site and machining.
  • Step 4: Realization of after-work checks (Laser Tracker) by an external company.

3D MODELLING

The implementation of our machines in 3D

MACHINE SETUP & MACHINING

OVERVIEW AFTER WORK

HOME HYDROELETRIC PLANT
Aug 29 2023
Wheel coat Ø3400

Published on 29/08/2023

Wheel coat Ø3400

Take a wheel coat Ø3400 of a Kaplan turbine by machining and all that on site?! The TACQUET INDUSTRIES teams also know how to do it!
If you want to know more, it’s here 👇

During the month of July, our teams had the privilege of working on the renovation of another hydroelectric power plant group. ♻️💧

THE MISSION: 🔍
– Resumption of the cylindrical and spherical part Ø3400 of the wheel mantle on a height of 1m.

Tolerances requested: 🔑
– Final coast of cylinder diameter and sphere Ø3400
– Surface condition: Ra 3.2 max

Machine used: Boring-Surfacer TI6500 🎯

The subtlety on this site lies in the development of a completely mechanical copier to follow and recreate the original shape of the coat. No CNC was used for this operation. 👌

Intervening on this type of site allows us to improve our techniques in order to deliver an optimal quality of service and services for our customers!

VERDICT: 🏆Successful mission🏆

This new success was achieved thanks to rigorous preparation upstream by our Design Office and the professionalism of our technicians on site. 💯

We thank Automated Precision Europe GmbH for their support on this project.

We also thank our client EDF for its confidence in this project and especially Pol Piedfer and Loic Potel for the organization of the site. 🤝

Source LinkedIn

Aug 18 2023
Turbine shaft machining 𝘊𝘈𝘚𝘛𝘌𝘛𝘈𝘙𝘉𝘌

Baigts Castetarbe factory, France

Turbine shaft machining

During 2023, we worked on a turbine shaft at the Baigts Castetarbe Hydroelectric Power Plant in France for our customer EDF.

  • Machining (delardage) of the shaft of 10mm at minimum radius over a length of 450mm
  • Welding of 2 half shells (machined in our workshop) on the tree by an external company
  • Machining of welded half-shells to obtain the final diameter Ø200
  • Diameter tolerance Ø200: 0.1 mm
  • Conicity: (0; + 0.1 mm)
  • Coaxiality: (0; + 0.2 mm)
  • Surface condition: Ra 1.6 (obtained: 0.3/ 0.4)

Our intervention took place in several stages:

  • Step 1: Analysis of the subject in our Design Office (feasibility, 3D modeling of the tree, implementation of our machine in the 3D work environment).
  • Step 2: Carrying out pre-work checks (Laser Tracker) by an external company to define the origins and create a reference.
  • Step 3: Installation of our machine on site and machining.
  • Step 4: Soldering half shells.
  • Step 5: Realization of controls (Laser Tracker) by an external company in order to recover the repository and adjust the machine.
  • Step 6: Installation of our machine on site and finishing machining.
  • Step 7: Completion of after-work checks (Laser Tracker) by an external company.

3D MODELLING

3D modeling is done in accordance with the customer’s plans

MACHINE SETUP & MACHINING

Setting up our machine, welding half shells, and finishing machining.

OVERVIEW AFTER WORK

HOME HYDROELETRIC PLANT
Aug 7 2023
Machining of flanges Ø8700

Published on 07/08/2023

Flanges machining Ø8700

Can I machine Ø8700 flanges on site?
Want to know more about the last titanic project recently completed by TACQUET INDUSTRIES teams? Continue reading we will tell you everything.

In recent months we had the pleasure of working on the complete renovation of unit 1 of the EDF hydroelectric power station in Ottmarsheim for our customer Voith Hydro. ♻️💧

THE MISSION: 🔍
– Machining flange and Ø6050 H7 foundation ring
– Surfacing of the upper face of the inf ring (Ø6900 to Ø8700) then machining of the face and diameter Ø6900
– Surfacing of the inf face of the head cover (Ø6900 to Ø8700)
– Addition of modifications to the 48 Sealing Guide Pots (Drilling/Tapping, Countermeasures)

Tolerances requested: 🔑
– Horizontality and flatness of machined planes: 0.02mm/m
– Surface Condition: Ra 6.3
– Deck depth: 0.1mm
– Bores: H7

Machines used: TI8500 Boring Machine/ TU400 Boring Machine/ MAB485 Magnetic Drill 🎯

On this site, for its maximum surfacing configuration our machine TI8500 reaches 10m diameter for a mass of almost 20T 🤯

VERDICT: 🏆Successful mission🏆

This new challenge was won thanks to the preparation work carried out by our Design Office as well as the quality of work and the investment of our technicians on site. 💯

We thank Automated Precision Europe GmbH for their involvement in this project.

We also thank our client Voith Hydro for his professionalism and confidence in this project and especially Julien Lacroix, Etienne Pernot and Julia Heinisch for the organization of the site. 🤝

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Jul 18 2023
TOP and VAD valve refurbishment 𝘉𝘖𝘙𝘛-𝘓𝘌𝘚-𝘖𝘙𝘎𝘜𝘌𝘚

Bort-les-Orgues dam, France

TOP and VAD valve refurbishment

During 2023, we worked on the TOP valve and the VAD valve at the Bort-les-Orgues dam in France for our customer EDF.

videos
  • Renovation of TOP valve fixed parts (machining of RG and RD surfaces on a height of 10m, installation of wear plates machined in our workshop, against drilling/ tapping of 100 M12 in RG and 100 M12 in RD for fixing these parts)
  • Machining of VAD valve threshold knife to achieve sealing

Our intervention took place in several stages:

  • Step 1: Analysis of the subject in our Design Office (feasibility, 3D modeling of the TOP valve environment, implementation of our machines in the 3D work environment for the different operations).
  • Step 2: Installation of our machines on site and machining.

3D MODELLING

The valve environment is 3D modeled in accordance with the customer’s original plans

MACHINE SETUP & MACHINING

OVERVIEW AFTER WORK

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Jun 11 2023
Machining of the wheel coat after reloading (Kaplan type) 𝘝𝘐𝘓𝘓𝘌𝘙𝘌𝘚𝘛

Villerest Hydroelectric Power Station, France

Machining of the wheel coat after reloading

In June 2023, we worked on the G1 Group (Kaplan type) of the Villerest Hydroelectric Power Plant, in France, for our customer EDF.

Videos

Remanufacture the cylindrical and spherical part of the existing wheel mantle after reloading to return to the original shape and ribs. The portion to be taken back extended over a height of about 1000mm.

 

  • Final side of cylinder and sphere: Ø3400mm
  • Surface Condition: Ra 3.2

Our intervention took place in several stages:

  • Step 1: Analysis of the subject in our Design Office (feasibility, 3D modeling of the turbine, study and calculations to determine the profile of our shape copying element, implementation of our machine in the 3D work environment).
  • Step 2: Carrying out pre-work checks (Laser Tracker) by an external company.
  • Step 3: Installation of our machine on site and machining.
  • Step 4: Realization of after-work checks (Laser Tracker) by an external company.

The intervention is identical to that of the Fessenheim wheel mantle, but on a smaller diameter. A smaller machine was therefore used for this operation.

3D MODELLING

The machining involved studying and verifying the shape of the copying surface through calculations.

PRE-WORK & MACHINE SETUP

Our machine was installed in the turbine and adjusted with the help of the Laser Tracker.

OVERVIEW AFTER WORK

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