Views: 0 Author: Site Editor Publish Time: 2025-02-20 Origin: Site
Convex welding and virtual welding are two types of defects that may occur during the welding process, which respectively describe the protrusion and depression of the welded joint. Here are their specific descriptions:
Convex welding refers to the raised weld seam formed on the surface of a welded joint. This situation usually occurs when the welding current is too high, the welding time is too long, or the welding pressure is insufficient.
The main reasons include excessive heat or pressure during the welding process, which leads to excessive extrusion of molten metal and the formation of raised weld seams.
Convex welding can lead to a decrease in the strength of the welded joint, which is prone to cracking or damage, thereby affecting the welding quality and the service life of the workpiece.
Virtual welding refers to the concave weld formed on the surface of a welded joint. This situation usually occurs when the current is too low, the welding time is too short, or the welding pressure is too high during welding.
The main reasons include insufficient heat or pressure during the welding process, resulting in insufficient molten metal filling the weld seam and forming a concave weld seam.
Virtual welding can lead to insufficient strength of the welded joint, which is prone to cracking or loosening, thereby affecting the welding quality and the service life of the workpiece.
For the two types of defects, convex welding and virtual welding, the following measures are usually taken to prevent and solve them:
Optimize welding parameters: By adjusting welding current, time, pressure and other parameters to achieve the optimal state, avoid convex welding or virtual welding.
Appropriate electrode design: Choose the appropriate electrode shape and size to ensure uniform heat distribution around the welding point and avoid local overheating or undercooling.
Maintain good welding surface cleanliness: Before welding, ensure that the welding surface is clean and free of contaminants such as grease and oxides, which helps to ensure welding quality.
Inspection and maintenance of welding equipment: Regularly inspect and maintain welding equipment to ensure its normal operation and avoid welding quality problems caused by equipment failures.
Through the comprehensive application of the above measures, welding defects such as convex welding and virtual welding can be effectively prevented and solved, and the welding quality and workpiece performance can be improved.
If you have welding machine requirements, please contact Ms. Zhao
E-Mail: pdkj@gd-pw.com
Phone: +86-13631765713
