With the development of science and technology, ultrasonic metal spot welding technology is more and more widely used in manufacturing industry. This technique uses high-frequency vibrations to transfer energy to the metal surface so that a solder joint is formed between two metal plates. Compared with the traditional thermal welding method, ultrasonic metal spot welding has the advantages of no damage to the material surface and high solder joint strength. Therefore, it is widely used in industries such as automotive, aerospace, electronics, and medical devices.
However, in order to correctly use the ultrasonic metal spot welding machine for metal spot welding, it is necessary to master certain operating skills and steps. In this article, we will introduce the steps of using the ultrasonic metal spot welding machine, including preparation work, spot welding process and equipment maintenance, etc., to help readers better understand how to use the equipment.
Preparatory work before ultrasonic metal welding
Before ultrasonic metal welding, the following work needs to be prepared:
Determine the materials needed for metal spot welding: This includes the metal materials to be joined, the ultrasonic welding tip (also known as the catalyst), sound-absorbing pads, pressure tips, and other auxiliary materials.
Prepare equipment: Ultrasonic welding requires the use of specific equipment. You need to make sure you have the right equipment such as ultrasonic welding machines, welding heads, presses and other necessary auxiliary equipment.
Clean metal surface: Before ultrasonic metal welding, the metal surface of the welding part must be thoroughly cleaned. This can be achieved by using sandpaper or other suitable cleaning agents.
Safety measures: Before any type of welding, necessary safety measures must be taken, such as wearing protective gloves, glasses, protective clothing, etc.
Commissioning equipment: Before starting ultrasonic metal welding, you need to ensure that all equipment is properly commissioned and set up to ensure that the welding results are as expected and will not cause hazards.
Workflow of Ultrasonic Metal Welding
Preparation: Verify that all equipment is calibrated and set up correctly, clean the metal surfaces to be joined, and ensure that required materials and equipment are available.
Installing the parts: Place the two parts to be joined into the fixture of the ultrasonic welding machine and fix the catalyst on one of the parts.
Select parameters: According to the type of metal material to be joined, select the appropriate welding parameters, such as output power, welding time, pressure, etc.
Welding: Turn on the ultrasonic welder and lower the welding head over the catalyst, applying pressure and vibrational energy to press the catalyst between the two parts to achieve the weld. Welding times depend on the welding parameters selected and the type and size of the parts to be joined.
Cooling and Cleaning: After welding, allow the joint to cool down, then clean and condition the weld with the appropriate tools to bring it to specification.
Inspection: Carry out necessary inspection and testing to ensure whether the welding quality meets the requirements.
What should be paid attention to when using ultrasonic metal spot welding machine?
Safe operation: Ensure adequate knowledge and training on the equipment, follow relevant safety regulations and standards, wear appropriate personal protective equipment, and avoid touching equipment moving parts and hot surfaces.
Warm-up time: Before starting to use the ultrasonic metal spot welder, it is necessary to warm up the equipment for a period of time to ensure that it reaches the proper working temperature.
Clean Surfaces: Before metal spot welding, the metal surfaces to be joined need to be thoroughly cleaned to remove any dirt, grease or oxides, which will help improve the quality of the weld.
Welding pressure: Choosing the right pressure can ensure the strength and quality of metal spot welding. Too high or too low pressure may cause the weld to fail.
Welding time: Different metal materials require different welding times, and the appropriate welding time needs to be determined according to the specific situation to avoid excessive or insufficient welding.
Maintenance: Regular inspection and maintenance of ultrasonic metal spot welding machines, including cleaning welding heads, replacing worn parts, and calibrating equipment parameters, etc., can prolong its service life and ensure the quality of welds
When you master the skills, precautions and operating procedures of the ultrasonic metal spot welding machine, you can easily perform metal spot welding. During use, keep safety first in mind and abide by relevant regulations and standards to avoid potential injuries and accidents.
In order to ensure the quality and reliability of spot welding, we must abide by the operating procedures, select appropriate parameters and materials, keep equipment clean and maintained, make records and improvements, and continuously improve its process level and application range.