Why can resistance welding equipment be used in the automotive industry?
Resistance welding equipment is ubiquitous, especially in the automotive parts manufacturing industry. According to differences in welding control principles, it is mostly divided into medium frequency spot welding machines, variable frequency spot welding machines, power frequency spot welding machines, energy storage spot welding machines and three-phase secondary Rectifier spot welding machines and other types of resistance welding equipment.
The output frequency of the variable frequency spot welding machine controller can be adjusted to suit transformers of different frequencies. Compared with ordinary industrial frequency welding machines and medium frequency welding machines, its output is a complete sine wave, the equipment has less spatter, and the three-phase power consumption is balanced , which has the advantages of less pollution to the power grid.
The control circuit is composed of DSP and CPLD. The PWM wave, detection signal, and guarantee signal generated by the DSP are logically operated in the CPLD. The resistance welding machine control power inverter generally uses current feedback to complete PWM to obtain a stable constant current output. In the circuit schematic diagram of the inverter power supply of the variable frequency spot welding machine, the U power supply is the power supply voltage, the U primary is the inverter output variable frequency voltage, the transformer secondary current is the I secondary, and controlling the pulse width of the PWM can control the size of the I secondary. The current variable adopts a full-bridge structure. The specific feature is that the main transformer has strong working ability. Its main circuit is composed of 4 IGBTs and an intermediate frequency transformer. The DC voltage is converted into a variable frequency square wave AC voltage and sent to the variable frequency transformer. It is output after step-down rectification and filtering. , the stability of the circuit comes from the stable operation of IGBT
Heron's new moving contact welding line in the low-voltage electrical field is a game-changer. With patented tech like the silver tips feeding mechanism, it automates processes, cuts labor costs, boosts efficiency (4,500 pieces/11.5 hrs, 80% OEE), is eco-friendly, and drives industry upgrades.
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
technical challenges, enhanced the reliability of riveted connections, contributed to lightweighting automotive bodies, and driven technological progress in the automotive manufacturing industry.
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