What should we pay attention to during the welding process of spot welding machine?
While the spot welding machine is welding, it is necessary to understand its testing cycle and testing items clearly. Only in this way can the service life of the spot welding machine be extended and the stability of the welding quality ensured.
1. Electric welding current waveform or current
Domestic regulations stipulate that the current waveform should be measured once a month to determine the stability, adjustability and changes in the use of the welding current. Foreign advanced technical standards stipulate that when the machine is qualified, it should be based on the standard waveform of the welding current. Figure, comparison basis for checking welding current every month to determine whether the equipment is working properly.
2.Welding pressure
When the machine is being used for inspection, establish a correlation curve between the electrode pressure and the cylinder compressed air indicating pressure. Check the electrode pressure and comparison regularly. The clamping force and top pressure of the welding machine must be checked regularly.
3. Secondary loop resistance
The main part of the secondary loop resistance is the resistance of each contact in the loop. Changes in resistance value cause fluctuations in the welding current, and the allowable values vary with different standards.
4. Time
The time of each step in the fracture welding cycle (usually calculated by the number of cycles), especially the correctness of the times of pre-pressure, welding, tempering, relief, forging, burning, etc., directly affects the welding quality, which can be eliminated immediately through regular inspections. The difference between the measured value of time and the indicated value of the adjustment handle ensures the normality of the welding process.
5. Real-time detection
When welding important batches of products, it is necessary to use a secondary current measuring instrument and a cycle measuring instrument in conjunction with a printer to measure all the solder joints of a certain weldment in real time to determine the stability of the machine and the reliability of the welding points. sex
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This article focuses on the welding of high-strength steel. It expounds its characteristics like high strength and good toughness, and points out the technical key points such as pre-welding preparation and method selection. It highlights the application of resistance welding in it, including technical features, application scope, operation key points, difficulties and solutions, providing important guidance for related welding work.
This paper explores hot-formed steel welding. It details its ultra-high strength, good accuracy yet poor weldability. Key points include material selection, parameter optimization. Main methods like resistance, laser, arc welding are introduced. Challenges like cracks and solutions are also covered.
本文主要讨论铝合金。 首先阐述了其重量轻、强度高、耐腐蚀等特点。 然后详细介绍了电阻焊、TIG焊、MIG/MAG焊等常见的焊接方法及其特点和应用范围。 进一步分析了焊接过程中存在的变形、气孔、氧化膜、接头软化等技术难题，并提出了相应的解决方案。 总体上强调了铝合金焊接在现代工业中的重要意义、掌握正确的焊接技术的必要性，并展望了铝合金焊接技术随着科技的发展而不断创新和进步。
The article mainly focuses on stainless steel. It first elaborates on the characteristics of stainless steel, including different types like austenitic, martensitic, ferritic and duplex stainless steel, and its properties such as corrosion resistance. Then it presents main welding methods like resistance welding, manual arc welding, gas-shielded welding, laser welding and others, along with their application scopes and operating points. It also analyzes technical difficulties in welding such as hot cracking, intergranular corrosion, welding deformation and porosity, and proposes corresponding solutions. Overall, it emphasizes the complexity and importance of stainless steel welding.
This article introduces the FSPR Robotic Riveting Gun System as a solution to the riveting challenges faced by the automotive industry,
particularly in the assembly of new car roof components made of multi-layered, differently shaped workpieces. The system utilizes a servo cylinder to deliver high-tonnage riveting force with precision, complemented by real-time monitoring and data analysis. Its successful application has solved
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Resistance welding
є
widely used
in automobile manufacturing, aerospace, electronic manufacturing and other
industries due to its efficiency and energy-saving properties
电阻焊机是现代工业的基石，其性能稳定可靠，直接关系到生产线的无缝运行和产品的卓越品质
In the low-voltage electrical industry, the welding quality of
the conductive busbar
is crucial to the overall performance and stability of the equipment