1 argon arc welding
Argon arc welding is one of the commonly used welding methods at present, which is suitable for the processing of aluminum alloy thin-walled printers. The specific steps are as follows:
1) Preparation: First, select appropriate electrode materials for welding, cleaning and keeping dry, then assemble the equipment and check that the equipment is in working condition.
2) Adjust the gas flow: Adjust the flow of the gas flowmeter to an appropriate level, so that argon can be supplied smoothly during welding.
3) Adjusting the gas quality: Adjusting the gas quality to a specific oxygen content range is helpful to prevent aluminum-based materials from being oxidized during welding.
4) Scanning the workpiece surface: scan the aluminum alloy thin-wall printer with argon arc welding tool to determine the welding area and accurate welding position.
5) Start welding: Before the equipment starts, it needs to be adjusted according to the geometric size of the welding area and the calculated welding parameters, and then start welding.
The advantage of argon arc welding is its strong welding ability, which can be applied to some larger materials. Moreover, there are few oxides produced after welding, and the coating performance is very stable. However, the disadvantages of this welding method are slow speed and low production efficiency.
2. Laser welding
Laser welding is a highly automated method, which can complete the welding of aluminum alloy thin-wall printer in a short time. Laser beam can produce high energy density in a small area, which is enough to weld two metal parts together. The specific steps are as follows:
1) Preparation: Before laser welding, the surface of metal parts needs to be treated and optimized to eliminate possible impurities and oxides.
2) Setting laser parameters: The setting of laser parameters (such as power, pulse width and frequency) depends on the thickness and material type of metal parts, and can be adjusted before or during printing.
3) Start welding: move the welding head to the welding area and start laser welding. In the welding process, it is necessary to control the speed of the laser head and the welding path to ensure that the strength of the solder joint reaches the standard.
The disadvantages of laser welding are high operating cost and expensive equipment, and some small enterprises cannot afford to use laser welding.
To sum up, the welding methods of aluminum alloy thin-wall printer mainly include argon arc welding and laser welding. Argon arc welding is widely used because of its good coating performance, but its speed is slow and production efficiency is not high. Laser welding has gradually become the main welding method of aluminum alloy thin-wall printer with its advantages of high forming accuracy, fast welding speed and simple operation, but the operating cost and equipment cost are expensive, which makes it unbearable to use laser welding.