鋁合金7003與630不銹鋼異質金屬雷射銲接研究;Heterogeneous Welding of AL7003 and SUS630 by Laser

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题名:	鋁合金7003與630不銹鋼異質金屬雷射銲接研究;Heterogeneous Welding of AL7003 and SUS630 by Laser
作者:	董念偉;Tung, Nien-Wei
贡献者:	機械工程學系在職專班
关键词:	7003;SUS630;17-4PH;鋁合金;不銹鋼;異質金屬銲接;7003;SUS630;17-4PH;aluminum alloy;stainless steel;heterogeneous welding
日期:	2021-08-10
上传时间:	2021-12-07 13:18:32 (UTC+8)
出版者:	國立中央大學
摘要:	日新月異的工業科技，鋁合金與不銹鋼的使用逐漸廣泛。不同的材料有不同的特性，將不同材料的優點集結取得平衡那將會是工業的一大助力，因此異質金屬在工業上已經逐漸成為一種趨勢。本研究選用7003鋁合金與630不銹鋼，利用光纖雷射進行銲接其波長為1065nm，然後由拉伸破壞試驗、實體顯微鏡觀察銲道外觀與熔透情形並量測其銲接熔深、以掃描式電子顯微鏡觀察做微結構觀察與能量色散X射線光譜儀進行銲道中合金元素分佈情形，作為評估銲接品質之依據，進一步探討機械性質以及微結構變化，並從中尋找出最適合之雷射銲接參數。實驗結果顯示：7003鋁合金與630不銹鋼在銲接功率主銲道功率為60W及副銲道功率為60W進行雷射銲接可以得到良好的銲接強度，銲道截面觀察熔深及擴散接合情形良好也無明顯的缺陷存在，銲接強度平均為14.61 kg。關鍵字：7003、SUS630、17-4PH、鋁合金、不銹鋼、異質金屬銲接 ;ABSTRACT Because of the high specific strength and good corrosion aluminum alloys and stainless steels have been used extensively since period of energy crises. It is very helpful in industry that integrating different materials characteristic in used. Therefore, the welding of heterogeneous metals have been valued. The purpose of this research was to study the weldability of aluminum alloys and stainless steels under fiber laser welding. The base metals used were AL7003 and SUS630 (17-4PH). A series of experiments including tensile test, microstructure was observed and distribution of alloy elements within the fusion zone was analyzed by scanning electron microscope. The experimental results indicate that the elements distribution of Al and Fe were mixed sufficiently, it sound weld metals of welding strength was obtained by using main welding power of 60 watt and side welding power of 60 watt. Keywords：7003、SUS630、17-4PH、aluminum alloy、stainless steel、heterogeneous welding
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