Dross attachment
Spatter is the adhering, solidified metal or oxide on the bottom edge of the cut, formed by incomplete expulsion during the cutting process. It often requires manual or mechanical finishing.
Physical-Chemical Mechanism of Action
Spatter occurs when molten metal is not completely removed from the workpiece and solidifies during cooling. This can be caused by insufficient cutting performance or excessive melting temperature.
Metallurgical Relevance & Welding Risks
Spatter worsens the cut edge, increases stress distribution, and can lead to cracks or damage in the workpiece. It also raises the risk of hot cracking and reduces the mechanical properties of the weld.
Workshop Practice & Instructions
To minimize spatter, take the following steps:
• Use a suitable cutting disc with sufficient cutting performance for the metal being cut.
• Keep the melting temperature in the optimal range to ensure complete separation.
• After cutting, apply mechanical finishing such as grinding or filing to remove spatter.