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首页> 外文会议>Conference on Photon Processing in Microelectronics and Photonics III; 20040126-20040129; San Jose,CA; US >Transmission Welding of Carbon Nanocomposites with Direct-Diode and Nd:YAG Solid State Lasers
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Transmission Welding of Carbon Nanocomposites with Direct-Diode and Nd:YAG Solid State Lasers

机译：碳纳米复合材料与直接二极管和Nd：YAG固态激光器的透射焊接

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摘要

Carbon nanocomposites consist of thermoset or thermoplastic materials filled with carbon nano-particles (nanotubes, bucky balls, etc.). This new and innovative group of materials offers many advantages over standard polymers such as electrical/thermal conductivity and improved structural properties. In the current study, direct diode and Nd:YAG solid-state lasers were used to transmission weld -carbon nanocomposite materials. The experimentation was focused on exploiting the infrared absorbing characteristics of the carbon nanocomposites. Polyetheretherketone (PEEK) based polymer was used in the initial experimentation to quantify weld strength. The experimentation included a complete analysis of the transmission characteristics of the base polymer at 810 run and 1,064 run wavelengths, an optical microscope view of the weld cross-section, and transmission welding experimentation. The transmission welding experimentation studied the relationship between average power, travel speed, and weld peel strength. A micro-channel welding experiment was also completed using a polycarbonate (PC) based polymer. The experimentation qualified the minimum feature size that could be joined. The results show that the carbon nanocomposites can be welded in a similar way to carbon black filled materials. The carbon nanocomposites exhibited higher peel strengths at lower average laser power at both 810 and 1064 run. The carbon nanocomposite material exhibited a unique characteristic of being able to be machined and welded by the same laser wavelength.
机译：碳纳米复合材料由填充有碳纳米颗粒（纳米管，巴基球等）的热固性或热塑性材料组成。与标准聚合物相比，这组创新的材料具有许多优势，例如导电/导热性和改善的结构性能。在当前的研究中，直接二极管和Nd：YAG固态激光器用于传输焊接碳纳米复合材料。实验着重于利用碳纳米复合材料的红外吸收特性。初始实验中使用了基于聚醚醚酮（PEEK）的聚合物来量化焊接强度。该实验包括对基础聚合物在810游程和1,064游程波长下的透射特性的完整分析，焊缝横截面的光学显微镜视图以及透射焊接实验。透射焊接实验研究了平均功率，行进速度和焊缝剥离强度之间的关系。使用基于聚碳酸酯（PC）的聚合物还完成了微通道焊接实验。实验确定了可以加入的最小特征尺寸。结果表明，可以用与填充炭黑的材料类似的方式焊接碳纳米复合材料。碳纳米复合材料在810和1064运行时均以较低的平均激光功率显示出较高的剥离强度。碳纳米复合材料表现出能够以相同的激光波长进行机械加工和焊接的独特特征。

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