If the welding machine sticks to the electrode, the electrode working surface is in local contact with the part, and the contact resistance between the electrode and the part is increased, which will lead to a decrease in the current of the welding circuit, but the current is concentrated in the local contact point.
The current density of the contact point is greater than the normal current density of the electrode working surface, causing the temperature of the contact point to rise to the weldable temperature of the electrode and the part, forming the fusion of the electrode and the part.
The electrode working surface and the parts can not be completely fitted, only some parts of the protruding contact with the parts. Insufficient electrode pressure. The contact resistance is inversely proportional to the pressure, the insufficient electrode pressure causes the contact resistance between the electrode and the part to increase, and the temperature between the contact part and the contact surface of the part rises to the weldable temperature, forming the electrode and the part fusion connection.
Suzhou Agera Automation Equipment Co., Ltd. is engaged in automatic assembly, welding, testing equipment and production line development enterprises, mainly used in home appliance hardware, automobile manufacturing, sheet metal, 3C electronics industry. According to customer needs, we can develop and customize various requirements of welding machines and automatic welding equipment and assembly welding production lines, production lines, etc., to provide suitable automated overall solutions for enterprise transformation and upgrading, and help enterprises quickly realize the transformation and upgrading services from traditional production methods to high-end production methods. If you are interested in our automation equipment and production lines, please contact us.
Post time: May-17-2024