The present study focuses on the applicability of friction stir welding to pure Pb plates. The joint performances are evaluated by optical microscopy, microhardness measurements, notch impact tests and three point bending tests. The effects of the tool rotational speed (1500, 2000 and 2500 rev/min) and welding speed (72, 100 and 125 mm/min) on the joint performance are determined. The results indicate that the welded joints exhibit similar or higher mechanical properties than those of the base material. Optimal joint performance was achieved with a rotational speed of 1500 rev/min and welding speed of 100 mm/min.
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机译：本研究的重点是搅拌摩擦焊在纯Pb板上的适用性。通过光学显微镜，显微硬度测量，缺口冲击测试和三点弯曲测试评估接头性能。确定了工具转速（1500、2000和2500 rev / min）和焊接速度（72、100和125 mm / min）对接头性能的影响。结果表明，焊接接头表现出与基础材料相似或更高的机械性能。 1500 rpm / min的转速和100 mm / min的焊接速度可实现最佳的接头性能。
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