Kuo Chil-Chyuan, Gurumurthy Naruboyana, Huang Song-Hua
Department of Mechanical Engineering, Ming Chi University of Technology, No. 84, Gungjuan Road, Taishan District, New Taipei City 24301, Taiwan.
Research Center for Intelligent Medical Devices, Ming Chi University of Technology, No. 84, Gungjuan Road, Taishan District, New Taipei City 24301, Taiwan.
Polymers (Basel). 2023 Sep 2;15(17):3637. doi: 10.3390/polym15173637.
Rotary friction welding (RFW) has no electric arc and the energy consumption during welding can be reduced as compared with conventional arc welding since it is a solid-phase welding process. The RFW is a sustainable manufacturing process because it provides low environmental pollution and energy consumption. However, few works focus on the reliability of dissimilar polymer rods fabricated via RFW. The reliability of the frictionally welded components is also related to the ambient temperatures. This work aims to investigate the effects of ambient temperature on the mechanical properties of frictionally welded components of polycarbonate (PC) and acrylonitrile butadiene styrene (ABS) dissimilar polymer rods. It was found that the heat-affected zone width increases with increasing rotational speeds due to peak welding temperature. The Shore A surface hardness of ABS/PC weld joint does not change with the increased rotational speeds. The Shore A surface hardness in the weld joint of RFW of the ABS/PC is about Shore A 70. The bending strength was increased by about 53% when the welded parts were placed at 60-70 °C compared with bending strength at room temperature. The remarkable finding is that the bending fracture position of the weldment occurs on the ABS side. It should be pointed out that the bending strength can be determined by the placed ambient temperature according to the proposed prediction equation. The impact energy was decreased by about 33% when the welded parts were placed at 65-70 °C compared with the impact energy at room temperature. The impact energy (y) can be determined by the placed ambient temperature according to the proposed prediction equation. The peak temperature in the weld interface can be predicted by the rotational speed based on the proposed equation.
旋转摩擦焊接（RFW）不存在电弧，并且由于它是一种固相焊接工艺，与传统电弧焊相比，焊接过程中的能耗可以降低。RFW是一种可持续的制造工艺，因为它对环境污染小且能耗低。然而，很少有研究关注通过RFW制造的异种聚合物棒材的可靠性。摩擦焊接部件的可靠性也与环境温度有关。这项工作旨在研究环境温度对聚碳酸酯（PC）和丙烯腈丁二烯苯乙烯（ABS）异种聚合物棒材摩擦焊接部件力学性能的影响。研究发现，由于焊接峰值温度，热影响区宽度随转速增加而增大。ABS/PC焊接接头的邵氏A表面硬度不随转速增加而变化。ABS/PC旋转摩擦焊接接头的邵氏A表面硬度约为邵氏A 70。与室温下的弯曲强度相比，当焊接部件置于60 - 70°C时，弯曲强度提高了约53%。值得注意的是，焊件的弯曲断裂位置发生在ABS一侧。应该指出的是，根据所提出的预测方程，弯曲强度可以由放置的环境温度确定。与室温下的冲击能量相比，当焊接部件置于65 - 70°C时，冲击能量降低了约33%。根据所提出的预测方程，冲击能量（y）可以由放置的环境温度确定。基于所提出的方程，可以通过转速预测焊接界面的峰值温度。
