On the use of phosphor thermometry for temperature monitoring in manufacturing processes

A.O. Ojo, F. McCallum, A. Andreu, A.L. Heyes

Research output: Contribution to conference › Paper

Abstract

In the metalworking industry, continuous monitoring and control of temperature is vital to enhance process efficiency, reduce wastage, and attain product reliability in high-value manufacturing processes. The capabilities of conventional techniques such as the use of thermocouples and infrared thermometry for measuring temperature in these processes are limited. For example, in forging processes, there may be a need for mechanical alteration of the die to accommodate thermocouples for die surface temperature measurements, and with infrared thermometry, knowledge of the emissivity of the surfaces of process components is required for accurate temperature measurements. Given that phosphor thermometry has not previously been used in manufacturing processes, here, we report its potential implementation using the phosphor Mg4FGeO6:Mn for measurements of die surface temperature in a forging press. First, with this phosphor, laboratory trials were conducted to describe the cyclic heating of a die by pre-heated billets, which is a process leading to thermal fatigue that requires monitoring in practical applications. Then, the phosphor thermometry technique was demonstrated for die temperature measurements on a 2100 tonne screw press at the Advanced Forming and Research Centre (AFRC). The results show that phosphor thermometry is a candidate technique that would potentially enable more accurate measurements not possible by other techniques in this manufacturing process.
LanguageEnglish
Pages111-114
Publication statusPublished - 25 Jul 2018
Event1st International Conference on Phosphor Thermometry - Strathclyde University, Glasgow, United Kingdom
Duration: 25 Jul 2018 → 27 Jul 2018
https://www.icpt18.org/Default.aspx?tabid=7334

Conference

Conference1st International Conference on Phosphor Thermometry
CountryUnited Kingdom
CityGlasgow
Period25/07/18 → 27/07/18
Internet address

Fingerprint

Phosphors
Monitoring
Temperature measurement
Thermocouples
Forging
Temperature
Infrared radiation
Thermal fatigue
Surface measurement
Heating
Industry

Keywords

  • surface thermometry
  • phosphor thermometry
  • manufacturing processes
  • forging die

Cite this

Ojo, A. O., McCallum, F., Andreu, A., & Heyes, A. L. (2018). On the use of phosphor thermometry for temperature monitoring in manufacturing processes. 111-114. Paper presented at 1st International Conference on Phosphor Thermometry, Glasgow, United Kingdom.
Ojo, A.O. ; McCallum, F. ; Andreu, A. ; Heyes, A.L. / On the use of phosphor thermometry for temperature monitoring in manufacturing processes. Paper presented at 1st International Conference on Phosphor Thermometry, Glasgow, United Kingdom.
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Ojo, AO, McCallum, F, Andreu, A & Heyes, AL 2018, 'On the use of phosphor thermometry for temperature monitoring in manufacturing processes' Paper presented at 1st International Conference on Phosphor Thermometry, Glasgow, United Kingdom, 25/07/18 - 27/07/18, pp. 111-114.

On the use of phosphor thermometry for temperature monitoring in manufacturing processes. / Ojo, A.O.; McCallum, F.; Andreu, A.; Heyes, A.L.

2018. 111-114 Paper presented at 1st International Conference on Phosphor Thermometry, Glasgow, United Kingdom.

Research output: Contribution to conference › Paper

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T1 - On the use of phosphor thermometry for temperature monitoring in manufacturing processes

AU - Ojo, A.O.

AU - McCallum, F.

AU - Andreu, A.

AU - Heyes, A.L.

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Y1 - 2018/7/25

N2 - In the metalworking industry, continuous monitoring and control of temperature is vital to enhance process efficiency, reduce wastage, and attain product reliability in high-value manufacturing processes. The capabilities of conventional techniques such as the use of thermocouples and infrared thermometry for measuring temperature in these processes are limited. For example, in forging processes, there may be a need for mechanical alteration of the die to accommodate thermocouples for die surface temperature measurements, and with infrared thermometry, knowledge of the emissivity of the surfaces of process components is required for accurate temperature measurements. Given that phosphor thermometry has not previously been used in manufacturing processes, here, we report its potential implementation using the phosphor Mg4FGeO6:Mn for measurements of die surface temperature in a forging press. First, with this phosphor, laboratory trials were conducted to describe the cyclic heating of a die by pre-heated billets, which is a process leading to thermal fatigue that requires monitoring in practical applications. Then, the phosphor thermometry technique was demonstrated for die temperature measurements on a 2100 tonne screw press at the Advanced Forming and Research Centre (AFRC). The results show that phosphor thermometry is a candidate technique that would potentially enable more accurate measurements not possible by other techniques in this manufacturing process.

AB - In the metalworking industry, continuous monitoring and control of temperature is vital to enhance process efficiency, reduce wastage, and attain product reliability in high-value manufacturing processes. The capabilities of conventional techniques such as the use of thermocouples and infrared thermometry for measuring temperature in these processes are limited. For example, in forging processes, there may be a need for mechanical alteration of the die to accommodate thermocouples for die surface temperature measurements, and with infrared thermometry, knowledge of the emissivity of the surfaces of process components is required for accurate temperature measurements. Given that phosphor thermometry has not previously been used in manufacturing processes, here, we report its potential implementation using the phosphor Mg4FGeO6:Mn for measurements of die surface temperature in a forging press. First, with this phosphor, laboratory trials were conducted to describe the cyclic heating of a die by pre-heated billets, which is a process leading to thermal fatigue that requires monitoring in practical applications. Then, the phosphor thermometry technique was demonstrated for die temperature measurements on a 2100 tonne screw press at the Advanced Forming and Research Centre (AFRC). The results show that phosphor thermometry is a candidate technique that would potentially enable more accurate measurements not possible by other techniques in this manufacturing process.

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KW - phosphor thermometry

KW - manufacturing processes

KW - forging die

UR - https://www.icpt18.org/

M3 - Paper

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ER -

Ojo AO, McCallum F, Andreu A, Heyes AL. On the use of phosphor thermometry for temperature monitoring in manufacturing processes. 2018. Paper presented at 1st International Conference on Phosphor Thermometry, Glasgow, United Kingdom.

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