Introducing the advantages and disadvantages of spot welding, a representative welding method, as well as its evolution and advancements!
About ten years after the introduction of resistance spot welding in 1885, the "spot welding method" was born, which concentrates a large current on a small point to form a spot weld. This welding method is characterized by its fast welding speed and simple operation, making it easy to automate, and it quickly expanded and developed into the main welding method for thin sheet welding. In the production of automobile bodies, where low cost and mass production are paramount, welding is made possible by ensuring the contact between sheets through the pressure applied to the electrodes, resulting in high productivity. It has been widely adopted as a suitable welding method for mass production. In the world of spot welding, there has been a long period focused on bare mild steel plates, during which issues related to the welding phenomenon did not become apparent, thereby delaying advancements in subsequent spot welding technology. Current spot welding technology still faces challenges, such as the low nugget formation ability of zinc-coated steel plates commonly used for rust prevention, and the high pressure conditions required for high-strength (high-tensile) steel plates introduced to improve collision safety. It is difficult to say that these issues have been resolved, and a fundamental reassessment of the welding phenomenon may be necessary rather than just superficial measures. *For more details, please refer to the PDF document or feel free to contact us.*
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【Features】 ■ Fast welding speed ■ Easy to automate ■ Does not require skilled labor ■ Allows for slight gaps between plates ■ Minimal heat impact and distortion ■ Fewer consumable parts *For more details, please refer to the PDF document or feel free to contact us.
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Shinko Machinery Co., Ltd. is a manufacturer specializing in resistance welding electrodes, handling design, manufacturing, and sales in-house. Recently, it has aimed to become a comprehensive manufacturer of welding electrodes, including those related to arc welding. With a leading copper alloy manufacturer as a supplier, we ensure consistent manufacturing and quality assurance through reliable copper electrode materials and years of developed processing technology, responding to our customers' "era of quality." In the arc-related sector, we develop, manufacture, and sell components and products that contribute to maintaining and improving wire feeding performance, wire power supply, and gas shielding properties. We meet the needs of approximately 3,000 customers in the automotive and electrical industries, having sold hundreds of thousands of products and holding over 100 intellectual properties, including patents, utility models, trademarks, and international patents. The components supplied by Shinko Machinery have a "significant impact on welding quality," and our employees work together daily with a sense of mission to support the "era of quality."
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