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Temperature Measurement
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STIRWELD

FSW 공급 업체, FSM Heads, FSM Tools, FSW Accesories

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Temperature Measurement
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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

 


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

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

 


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.

 


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

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WHEN THE TEMPERATURE INCREASES

The rotational speed is high & the welding speed is low

QUALITY CONTROL WELDS

Maximum temperature does not exceed the melting temperature

WHEN THE TEMPERATURE DECREASES

The rotational speed is low & the welding speed is high

HOT WELD

Porosities are in the top of the weld

DEFECT FREE WELD

There is no porosity

COLD WELD

Porosities are in the bottom of the weld

 


TEMPERATURE MAPPING

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

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

 


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

 


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.

 


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

STIRWELD
FSW 공급 업체, FSM Heads, FSM Tools, FSW Accesories
교반 용접이란 무엇입니까? 교반 용접은 FSW(Fraction Stir Welding)를 기반으로 2017년에 설립되었으며, StirWeld의 임무는 귀하가 이 기술을 발견하고 쉽게 구현할 수 있도록 안내하는 것입니다.이를 위해 StirWeld는 고도로 기술적인 제품 및 서비스를 통해 가치를 추가하고자 합니다: CNC 기계용 FSW 헤드FSW 도구산업연구현장/웨비나(webinar) 교육   숙련되고 헌신적인 팀(18명)을 통해 StirWeld는 저렴한 비용으로 FSW라는 새로운 시장을 창출합니다.   1995년부터 FSW는 고가의 장비와 관련된 고부가가치 애플리케이션을 위한 기술로 남아 있습니다. 15년간의 경험을 바탕으로 한 NAT의 전문성은 혁신적이고 유연한 솔루션을 제공합니다: 교반 용접은 모든 유형의 CNC 공작기계에 FSW 헤드를 제공합니다.   StirWeld의 고객은 자동차, 우주, 항공우주 및 금속 가공 산업에 종사하고 있습니다.  
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