5052-H32鋁合金/熱塑性碳纖複材之異質擠壓扣件製程研發;

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Title:	5052-H32鋁合金/熱塑性碳纖複材之異質擠壓扣件製程研發
Authors:	林家維;Lin, Chia-Wei
Contributors:	機械工程系研究所
Keywords:	擠壓扣件;膠合技術;鋁合金;熱塑性碳纖複材;疲勞分析;Clinching;Adhesive bonding;Aluminum alloy;Thermoplastic CFRP;Fatigue life analysis
Date:	2017
Issue Date:	2019-07-17
Publisher:	機械工程系研究所
Abstract:	本研究的目標是進行鋁合金/熱塑性碳纖複材之異質擠壓扣件的研發，內容包含傳統擠壓扣件製程研發、膠合技術研發、複合式擠壓扣件研發、剪力拉伸試驗及疲勞測試等。首先，採用厚度1.6 mm的5052-H32鋁合金與熱塑性碳纖複材製作扣件；透過拉伸試驗結果及金相顯微圖進行刀具及底模的改善；探討下壓力對於擠壓扣件製程的影響；最後，找出較佳的參數組合。接著，進行膠合技術的研發，包括膠合模式、隔片厚度、試片表面清潔等因素的研究。接著，製作膠合試片並進行剪力拉伸試驗。最後，根據測試結果選取膠合模式及隔片厚度的最佳組合。完成擠壓扣件製程及膠合技術的開發後，本研究將兩種製程進行組合，開發複合式擠壓扣件製程。內容包含兩製程的複合方式、參數測試與挑選，透過剪力拉伸試驗及簡易疲勞測試的結果，找出最佳複合方式及參數組合。最後，採用擠壓扣件及複合式擠壓扣件進行完整疲勞測試，分析扣件的疲勞破壞模式，討論扣件的破壞機理。 This research work focused on the process development for aluminum alloy 5052-H32 (AA5052-H32)/thermoplastic carbon fiber reinforced plastic (Thermoplastic-CFRP) dissimilar clinch joints, including process development of clinching, adhesive bonding, and combined clinching, shear tensile testing, and shear fatigue testing, etc. First, AA5052-H32 and thermoplastic CFRP sheets with a thickness of 1.6 mm were used; the punch and die were improved by examining tensile test results and metallographic micrographs; the influence of punching force on the process was discussed; finally, some better processing parameter sets were obtained.Next, the processing development of adhesive bonding was conducted, including study of adhesive mode, gap thickness, and surface cleaning. Then adhesive bonding specimens were made and shear tensile tests were conducted. Finally, the best adhesive mode and gap thickness were obtained.After developing the clinching and adhesive bonding processes, we combined their concepts and developed a new process, combined clinching. The contents included the combination method of two processes, test and selection of processing parameters, finding the best combination method and processing parameter set by using the results of tensile tests and simple fatigue tests. Finally, complete fatigue tests for clinching joints and combined clinching joints were conducted. The fatigue failure modes of joints were analyzed and the failure mechanisms of joints were discussed.Keywords: Clinching; adhesive bonding; aluminum alloy; thermoplastic CFRP; fatigue life analysis.
Appears in Collections:	[機械工程學系] 學位論文

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