Welding aluminum with medu
Are you interested in welding copper and aluminum from the supplier — Electrovek-Steel? Here you will find only proven information about the features of welding these metals
To buy consumables and technological equipment for high-quality welding of copper with aluminum is offered by Electrovek-Steel. There are economically attractive prices from the manufacturer. The supplier guarantees the operative delivery of all components of the technological process to the address specified by the customer.
Difficulties in welding copper with aluminum
With the help of conventional fusion welding, it is very difficult to make a permanent connection between the copper and aluminum parts. This is due to the fact that due to the large difference in melting temperatures it is impossible to verify the true chemical composition of the melt. In terms of strength in the intermetallic compound formed, the percentage of copper is important: if it exceeds 12%, the melt becomes fluid, with a corresponding decrease in mechanical strength. At the same time, the fragility and the tendency of the weld metal to corrosion cracking increase. Thus, it is inefficient to use traditional carbon electrodes for welding copper and aluminum.
To overcome these difficulties, the locking method is used, the essence of which is that on top of the aluminum sheet is placed a copper patch, which is scorched from all sides, and then perform surfacing of welded seams.
The company Elektrovek-steel offers to buy at an affordable price components of the technological process of welding copper and aluminum. The supplier guarantees the operative transportation of the products to the point determined by the customer.
Copper and aluminum welding modes
In electric arc welding, direct current is used, and the process itself is conducted on the direct polarity. The use of a filler wire made of aluminum alloys is mandatory. Parameters of the process when welding products with a thickness of up to 15… 20 mm are as follows:
- Current strength, A — 500… 550;
- Voltage on the arc, V — 50… 60;
- Length of the arc, mm — 25… 30;
- Diameter of filler wire, mm — 10… 12.
When contact welding of copper and aluminum (used to weld copper tips to aluminum tires), the impulse welding method has proven itself. The connection occurs due to the discharge of the capacitor bank, during which the connection of these metals with each other by the method of precipitation. Depending on the thickness of the products, the technological process regimes are selected within the following limits:
- Battery capacity, mF — 250… 1000;
- Voltage, V — 1100… 1500;
- Force of the subsequent compression, Н — 1200… 1500.
Acquire at an affordable price of the manufacturer all components for high-quality welding of copper with aluminum is offered by Electrovek-Steel. The supplier guarantees prompt delivery of products to the point specified by the customer.