Study on the near-field fume diffusion characteristics of overhead welding with single weld spot on large flat wall

Key Points

• Fume diffusion patterns reveal significant thermal effects in overhead welding environments, indicating potential hazards.
• Data shows that fume concentration can vary dramatically, affecting worker exposure levels in real-time.
• Analysis of diffusion characteristics employed specialized fume tracing methods to assess airflow around weld spots.
• These findings may inform future welding safety guidelines, addressing fume exposure and control measures.