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Arc Welding Processes as Practical Solutions to Join Ceramics: Progress and Future Outlook.

J G Lopes1, J Shen1, J P Oliveira1

  • 1CENIMAT/I3N, Department of Materials Science, NOVA School of Science and Technology, Universidade NOVA de Lisboa, 2829-516 Caparica, Portugal.

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Arc welding of ceramic materials is underdeveloped due to thermal challenges. Gas tungsten arc welding and plasma arc welding show promise for reliable ceramic joining with further research.

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ceramicsdissimilar weldingfusion weldinggas tungsten arc weldingplasma arc weldingwelding

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Area of Science:

  • Materials Science
  • Manufacturing Engineering
  • Welding Technology

Background:

  • Arc welding of ceramics is an underdeveloped field.
  • Challenges include managing thermal gradients and stress concentrations, leading to cracking and unreliable joints.
  • Ceramics' brittleness and high melting points pose significant hurdles for welding.

Purpose of the Study:

  • To highlight the underdeveloped nature of arc welding for ceramic materials.
  • To identify the primary challenges hindering reliable ceramic joining via arc welding.
  • To explore the potential of gas tungsten arc welding and plasma arc welding for ceramic applications.

Main Methods:

  • Review of current research gaps in ceramic arc welding.
  • Analysis of challenges associated with welding brittle, high-melting-point materials.
  • Identification of promising arc welding techniques (GTAW, PAW) for ceramics.

Main Results:

  • Arc welding of ceramics faces significant difficulties related to thermal management and material properties.
  • Gas tungsten arc welding (GTAW) and plasma arc welding (PAW) present potential solutions.
  • Current understanding and reliable procedures for ceramic arc welding are lacking.

Conclusions:

  • Further investigation into arc welding processes for ceramics is essential.
  • Developing optimized welding procedures is crucial for reliable ceramic component fabrication.
  • Advancements in ceramic arc welding could significantly impact engineering applications.