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logo Stirweld France 2021
  • Stirweld Products
    • FSW HEADS
      • FSW standard head V3
      • FSW head with retractable pin
      • FSW Spindle for robot
      • Stirweld FSW machine
    • FSW TOOLS
      • High strength aluminium
      • Standard aluminium
      • Aluminium silicon
      • Aluminium steel
      • Aluminium copper
      • Stirweld Tool Holder
      • FSW tools catalogue
    • FSW ACCESSORIES
      • Temperature measurement
  • FSW Services
    • FSW prototyping
    • FSW clamping system
  • FSW Technology
    • FSW process
    • Principles & Trends
  • FSW Applications
    • Liquid cold plates
    • Heat sinks for e-mobility
    • Aluminium tank
    • Copper applications
    • FSW stiffened panels
    • Other FSW applications
    • FSW Applications
  • FSW resources
    • ARTICLES
      • FSW: a cost-killer in the aeronautics industry
      • How to choose FSW tool for my application
      • 4 essential elements for high quality FSW welding
      • More
    • WHITE PAPERS
      • Thermal Management: FSW liquide cold plate
      • FSW x Rheocasting
      • FSW Water heat sink for e-mobility
      • More
    • WEBINARS
      • FSW: all you need to know about aluminium welding
      • Thermal management: liquid cold plate & FSW
      • FSW: die casting heat sink for e-mobility
      • More
    • VIDEOS
      • FSW spindle for robot
      • Liquid cold plates welded by FSW
      • Satellite thermal Management
      • More
  • About
    • Who is Stirweld
    • FAQ
  • Contact
  • EnglishEnglish
    • FrançaisFrançais
    • DeutschDeutsch
    • EspañolEspañol
    • PolskiPolski
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    • ItalianoItaliano

TEMPERATURE MEASUREMENT

Smart tool holder for temperature measurement

more info

Temperature measurement in FSW operations

The welding temperature is an essential parameter for the quality control of welding. A too hot weld can result in a nugget collapse or reduction of mechanical properties. On the contrary, a too cold weld may cause poor stirring or wormhole.

Now you can control the temperature of your weld to ensure its quality thanks to the Stirweld solution: the smart FSW tool holder.

SMART TOOL HOLDER FOR TEMPERATURE MEASUREMENT

WELD TEMPERATURE MEASUREMENT

From 20 to 1000°C,

2 temperature sensors

NO BATTERY

For 24/7 availability: powered by wire connections

NUMERICAL OUTPUT (NO RADIO, NO BLUETOOTH)

Use of numerical output to avoid any signal perturbation

QUALITY CONTROL

Quality control at 100%

COMPATIBILITY

Compatible with all existing FSW machines

ONLINE RECORDING

Online tool temperature during FSW

Automatical record

Hydrogen cryogenic storage

WHY IS THE TEMPERATURE MEASUREMENT ESSENTIAL IN FSW? 

Friction stir welding is a cold-welding technique, i.e., it does not reach the melting point of the material. The welding temperature is therefore essential for a defect-free quality weld.

If an FSW weld is too hot, it can lead to weld defects such as nugget collapses or reduced mechanical properties. If the weld is too cold, poor stirring, or wormholes can occur.

Therefore, measuring the welding temperature allows you to quality control 100% of your welds while dividing by 5 your non-destructive control tests.

Comparison between hot weld, cold weld & defect free weld

Cold plate

For hot welds, the maximum temperature does not exceed the melting temperature. In this case, the melting temperature is equal to 555°C.

Want to know more about FSW technology?

Click here!

Know more

Which parameters affect the welding temperature?

The weld temperature depends on rotational speed and welding speed. Below we will see the impact if the weld is too hot, too cold and how we can reach defect free weld.

The material is brought to a 400°C temperature thanks to the FSW tool.

PHENOMENA 1: Heating by the tool friction on the material.

PHENOMENA 2: Material flow due to the tool stirring.

CNC welder

What happens when the temperature rises or falls? What is the impact on the FSW weld quality? 

WHEN THE TEMPERATURE INCREASES

The rotational speed is high & the welding speed is low

Liquid hydrogen storage tank material

HOT WELD

Porosities are in the top of the weld

QUALITY CONTROL WELDS

Maximum temperature does not exceed the melting temperature

Can you weld diecast

DEFECT FREE WELD

There is no porosity

WHEN THE TEMPERATURE DECREASES

The rotational speed is low & the welding speed is high

Robotic friction stir welding

COLD WELD

Porosities are in the bottom of the weld

TEMPERATURE MAPPING

FSW application

As we can see on the graph, having a defect-free weld depends first of all on the correct welding parameters: rotation speed, welding speed, tool geometry, force control.

Indeed, all these parameters will influence the quality of the weld because the more friction you use, the more you heat and the faster you weld, the less you heat. It is therefore necessary to find the right balance between both.

Without this temperature control…

Insufficient temperature would make it difficult to mix the parts, creating poor stirring or wormholes.

Too high temperature, approaching the melting point of the welded material, could lead to nugget collapse or reducing mechanical properties.

 

With this temperature control…

Quality control process: temperature control results in quality welds and therefore dividing by 5 the non-destructive control tests (bend test, leak test…).

STIRWELD SMART TOOL HOLDER BENEFITS

Cryogenic tanks
Thermal cooling plate
Types of friction stir welding
FSW measurement

ONLINE TEMPERATURE MEASUREMENT

For severe FSW components: space, aerospace, automotive applications

QUALITY CONTROL

100% quality control of FSW parts: compatible with EN 9100 standard

OPTIMIZATION OF WELDING PARAMETERS

Increase of welding speed: from 20 to 200%

STIRWELD EXPERTISE

Expertise on FSW and on tool-workpiece FSW abacus

CNC welding machine price

TECHNICAL SHEET

Temperature measurement

2 temperature measurements into the FSW tool:

Accuracy: +/-2°C

Full wire system (no radio, no Wi-Fi, no Bluetooth)

Numercial outputs

Compatible with all existing machines

Compatible with fix pin and retractable pin

Want to know more about Stirweld FSW Solutions? Click here!

Know more

Stir welding

ZOOM ON STIRWELD FSW TOOL

In addition to provide you a temperature measurement tool holder, Stirweld also offers you a range of FSW tools.

This range of tools is adaptable according to your needs: temperature measurement, fixed pin or retractable pin.

Our tools are standardised and can be adapted to any FSW equipments.

And finally, thanks to Stirweld’s FSW expertise, we have developed tools to weld different materials: cast aluminium, high strength aluminium, copper, steel with aluminium.

Want to know more about our tools? Download our catalogue!

Download

SMART TOOL HOLDER APPLICATIONS

Application 1: quality control during manufacturing

Repeatable temperature equals to repeatable quality

Application 2: optimization of welding speed

Optimization of welding speed according to optimum process temperature.

Application 3: optimization of RPM parameter as function of part geometry

Less material means higher temperature and require lower RPM

Do you want to add temperature measurement to your FSW equipment?

Meet our expert team!

Contact us

FSW is now accessible


More than an FSW supplier, Stirweld is also a partner for your FSW projects: studies, qualifications, training, FSW heads for MOCN & tools. Expertise and advice in addition. We accompany you all over the world and help you to implement this new technology. Contact us Stirweld sur Linked in Stirweld sur Twitter Youtube Stirweld
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