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In-situ measurements of temperature distribution during transmission laser welding of poly(aryletherketone)

Abstract : In this work, the temperature distribution inside the specimens has been measured during transmission laser welding. The material studied is a high performance thermoplastic of the polyaryletherketone (PAEK) family. The assembly consists of a quasi-amorphous sample as the upper part and a semi-crystalline sample as the lower part. The temperature fields were measured by infrared thermography with the camera sensor perpendicular to the welded interface. With an energy beam of 28 J.mm-2 and irradiation time of 15s, we have noticed that the maximum temperature inside the sample is kept far from the PAEK degradation one. Moreover, the temperature at the interface reaches the melting temperature thus assuring enough mobility for polymeric chains to get adhesion at the interface. Finally, the location and size of the heat-affected zone (HAZ) has been determined.
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https://hal.archives-ouvertes.fr/hal-01515533
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Submitted on : Thursday, April 27, 2017 - 4:26:16 PM
Last modification on : Friday, September 11, 2020 - 3:00:03 PM
Long-term archiving on: : Friday, July 28, 2017 - 1:38:22 PM

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  • HAL Id : hal-01515533, version 1
  • OATAO : 17409

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Miguel Villar, Christian Garnier, France Chabert, Valérie Nassiet, Juan Carlos Diez, et al.. In-situ measurements of temperature distribution during transmission laser welding of poly(aryletherketone). International ESAFORM conference on material forming 2016, Apr 2016, Nantes, France. pp.0. ⟨hal-01515533⟩

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