Characteristics of dissimilar material welding (stainless steel × free-cutting steel (lead-containing))
Stabilizing the quality of small items with a small welding surface and dissimilar material welding! Proposals for process reduction and cost reduction.
We would like to introduce the features of "dissimilar material welding (stainless steel × free-cutting steel)" by Yokoyama Seiko Co., Ltd. The sample product involved spot welding a nut to stainless steel; however, due to the nut material containing lead and the small size of the spot weld, the stability of the welding was poor, resulting in approximately 40% defects. By proposing to extend a projection from the stainless steel product side and changing to projection welding, we were able to eliminate defects and achieve stable quality. *For more details, please feel free to contact us.
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basic information
【Product Example】 ■Product Name: Front Panel ■Equipment Used: Capacitor Spot Welder ■Initial Pressure: 57 cycles (primary) ■Pressure: 5 kg/cm² (primary), 4.7 kg/cm² (secondary) ■Hold: 1 cycle ■Voltage: 160V *For more details, please feel free to contact us.
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Applications/Examples of results
【Applications】 ■ Expansion to small items with a small welding surface ■ Expansion to dissimilar material welding ■ Process reduction, cost reduction *For more details, please feel free to contact us.
Company information
Yokoyama Seiko Co., Ltd., located in Toyota City, Aichi Prefecture, has been striving for technological innovation and steadily developing as a manufacturing company since its founding in 1947. We aim to be a company that enhances the abilities of each employee, encourages creative ideas, and provides efficient production to everyone comprehensively.
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