From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys

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Presentation transcript:

From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys Figure 1. The blue-light hazard function (ACGIH, 2015). The blue-light hazard function shows the effectiveness of light to produce photochemical retinal damage as a function of wavelength. From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys Ann Work Expo Health. 2017;61(8):965-974. doi:10.1093/annweh/wxx062 Ann Work Expo Health | © The Author 2017. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.

From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys Figure 2. Experimental setup for measuring effective radiance (schematic diagram). From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys Ann Work Expo Health. 2017;61(8):965-974. doi:10.1093/annweh/wxx062 Ann Work Expo Health | © The Author 2017. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.

From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys Figure 3. Comparison of spectral radiance of arc for (a) GMAW-S and (b) GMAW-P. Symbols Al and Mg indicate emission lines of aluminum and magnesium, respectively. (a) Spectral radiance of arc in GMAW-S with A5083P-O and A5183WY. (b) Spectral radiance of arc in GMAW-P with A5083P-O and A5183WY. From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys Ann Work Expo Health. 2017;61(8):965-974. doi:10.1093/annweh/wxx062 Ann Work Expo Health | © The Author 2017. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.

From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys Figure 4. Effective blue-light radiance for GMAW-S and GMAW-P as a function of welding current. Error bars represent the standard deviation calculated from five measurements. From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys Ann Work Expo Health. 2017;61(8):965-974. doi:10.1093/annweh/wxx062 Ann Work Expo Health | © The Author 2017. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.

From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys Figure 5. Spectral radiance of arc for different combinations of base metal and welding wire in GMAW-P. Symbols Al and Mg indicate emission lines of aluminum and magnesium, respectively. Element symbol represents the major light-emitting element. (a) Spectral radiance for P1W1, (b) Spectral radiance for P1W5, (c) Spectral radiance for P5W1, (d) Spectral radiance for P5W5, and (e) Spectral radiance for P6W4 From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys Ann Work Expo Health. 2017;61(8):965-974. doi:10.1093/annweh/wxx062 Ann Work Expo Health | © The Author 2017. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.

From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys Figure 6. Effective blue-light radiance for different combinations. Error bars represent the standard deviation calculated from five measurements. From: Blue-Light Hazard From Gas Metal Arc Welding of Aluminum Alloys Ann Work Expo Health. 2017;61(8):965-974. doi:10.1093/annweh/wxx062 Ann Work Expo Health | © The Author 2017. Published by Oxford University Press on behalf of the British Occupational Hygiene Society.