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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 李貫銘 | |
dc.contributor.author | Wei-Ying Chu | en |
dc.contributor.author | 朱威穎 | zh_TW |
dc.date.accessioned | 2021-06-16T17:52:19Z | - |
dc.date.available | 2012-08-19 | |
dc.date.copyright | 2012-08-19 | |
dc.date.issued | 2012 | |
dc.date.submitted | 2012-08-13 | |
dc.identifier.citation | [1] 張文彬, '基於聲音和圖像的刀具磨損狀態監測技術的研究,' 浙江工業大學碩士論文, 2003.
[2] 梁有燈, 駱錦榮, and 邱亦契, '影像套合於鈦基鍍膜面銑削刀具磨耗的自動量測,' 中國機械工程學會第二十一屆全國學術研討會論文集, 2004. [3] H. Takeyama and R. Murata, 'Basic Investigation of Tool Wear,' American Society of Mechanical Engineers -- Transactions -- Journal of Engineering for Industry, pp. 33-38, 1963. [4] 陳松佑, '成形車刀狀態偵測系統之開發與研究,' 國立台灣大學機械工程學系碩士論文, 2011. [5] Mayer, 'Device for Early Detection of Break and Marginal Wear in The Cutting Edges of Tools,' US Patent, vol. No.4,885,530, 1989. [6] M. A. Davies, T. Ueda, R. M'Saoubi, B. Mullany, and A. L. Cooke, 'On The Measurement of Temperature in Material Removal Processes,' CIRP Annals - Manufacturing Technology, vol. 56, pp. 581-604, 2007. [7] M. C. Shaw, 'Metal Cutting Principles,' 1984. [8] N. A. Abukhshim, P. T. Mativenga, and M. A. Sheikh, 'Heat generation and temperature prediction in metal cutting: A review and implications for high speed machining,' International Journal of Machine Tools and Manufacture, vol. 46, pp. 782-800, 2006. [9] M. P. Lipman, B. E. Nevis, and G. E. Kane, 'Remote Sensor Method for Determining Average Tool-Chip Interface Temperatures in Metal Cutting,' American Society of Mechanical Engineers -- Transactions -- Journal of Engineering for Industry, pp. 333-338, 1967. [10] S. B. Moshref, 'Cutting Temperature as an Approach to On-Line Measurement of Tool Wear,' SME Technical Paper (Series) IQ, 1980. [11] D. A. Stephenson, 'Assessment of Steady-State Metal Cutting Temperature Models Based on Simultaneous Infrared and Thermocouple Data,' Journal of Engineering for Industry, vol. 113, pp. 121-128, 1991. [12] D. A. Stephenson, 'Metal Cutting Theory and Practice,' 2006. [13] G. Boothroyd and W. A. Knight, 'Fundamentals of Machining and Machine Tools,' Marcel and Dekker, 1989. [14] D. W. Yen and P. K. Wright, 'A Remote Temperature Sensing Technique for Estimating The Cutting Interface Temperature Distribution,' Journal of Engineering for Industry, vol. 108, pp. 252-263, 1986. [15] D. A. Stephenson and A. Ali, 'Tool Temperatures in Interrupted Metal Cutting,' Journal of Engineering for Industry, vol. 114, pp. 127-136, 1992. [16] S. A. Iqbal, P. T. Mativenga, and M. A. Sheikh, 'A comparative study of the tool–chip contact length in turning of two engineering alloys for a wide range of cutting speeds,' The International Journal of Advanced Manufacturing Technology, vol. 42, pp. 30-40, 2008. [17] H. Ay and W.-J. Yang, 'Heat transfer and life of metal cutting tools in turning,' International Journal of Heat and Mass Transfer, vol. 41, pp. 613-623, 1998. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/64523 | - |
dc.description.abstract | 刀具狀態的監控在切削工具機中是很重要的一環,其目的是為了避免造成產品精度下降,良率降低。眾多研究如聲射訊號監測(Acoustic emission)或是切削力(Cutting forces)與震動(Vibration)的觀察以及切削溫度(Cutting temperature)的改變等方式常被用來做為在線監控指標。其中,切削溫度監控的方式在業界長久以來卻無法被接受,主要原因是量測溫度的方法大多會增加成本。舉例來說,使用熱電偶量測切削溫度,必須於刀片上鑽孔並深入至刀尖處,而後再將熱電偶埋入。此種做法會使得換刀時間增加且提升加工成本。若使用熱感測儀器,此儀器本身造價昂貴,且在切削環境下易受到切屑干擾測溫,並不適合。然而,切削溫度卻又是很有效監控刀具狀態的物理量,因為一旦刀具發生磨耗或崩損,多餘的磨擦熱會產生,造成溫度上升。有鑑於此,本研究之目的為增加切削溫度在線監控的可行性。
針對此問題本研究利用遠端熱電偶偵測技術(Remote thermocouple sensing technique)來克服並開發一套適用於在線監控切削溫度之方法。建立間接量測到的切削溫度與實際切削溫度之間的數學模式關係,並且將熱電偶置於刀面下方,量測間接切削溫度,再以此間接切削溫度估算刀尖溫度。此溫度預估方法優點為不受被切材料的材料物理性質所限制,也無需裝設昂貴的動力計來擷取切削力輔助計算。只要知道刀片的材料物理性質、接觸面積大小、間接(遠端)切削溫度,即可對刀尖溫度進行預估。 由實驗結果可知,非切削實驗的溫度預估誤差在5%以內;車削1045中碳鋼的誤差為2%左右。且可於開始加工後五秒預估穩態溫度。最後本研究也進行切削速度改變的實驗,在溫度變化的情況下,其預估結果仍有一定準確性,誤差約在5~8%左右。 | zh_TW |
dc.description.abstract | Monitoring of cutting tool condition is very important for the efficient operation machine. The purpose of monitoring is to increase the precision and quality of the products. A great deal of research revealed that signal detection of acoustic emissions, cutting forces, cutting vibrations and cutting temperature, are often used as indicators in on-line monitoring. Monitoring cutting temperature always increases the cost of products, which is unacceptable in the industry. For instance, the most common method is to drill a hole close to the cutting edge of cutting tool and insert a thermocouple. However, this would increase the cost of machining operations. Another way is to use an infrared thermometer, but chips often obstruct the view of cutting edge and the equipment is very expensive. However, measuring the cutting temperature is a very effective for monitoring the status of inserts. Once the tool is worn, its temperature rises. The purpose of this study is to increase the feasibility of cutting temperature monitoring.
In this study, the objective of this research is to use remote thermocouple sensing technology to overcome this issue and develop a system of on-line monitoring of cutting temperature. By measuring the temperature with a thermocouple placed under the inserts, we can estimate the temperature of the edge of the cutting tool with a proper mathematic model. Therefore, we will be able to monitor the temperature of the cutting tools. The advantage of this method is that temperature measurements are not affected by the material properties of the workpiece. And the need for expensive equipment like dynamometer is eliminated. To estimate cutting edge temperature, the only information required is the material properties of the cutting tool, the contact length and the remote temperature. The experimental results show that the non-cutting tests are within 5% error and cutting experiments within 2% error. Steady-state temperature can be estimated in 5 seconds. Finally, errors in the cutting test when the cutting speed changes from 140 m/min to 320 m/min are 8%. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T17:52:19Z (GMT). No. of bitstreams: 1 ntu-101-R99522729-1.pdf: 3825928 bytes, checksum: d12bc678af6590d73a3e7caca9fde9b2 (MD5) Previous issue date: 2012 | en |
dc.description.tableofcontents | 致謝……………………………………………………………………………….I
中文摘要………………………………………………………………………...II 英文摘要………………………………………………………………………..III 目錄……………………………………………………………………………..IV 圖目錄…………………………………………………………………………..VI 表目錄………………………………………………………………………...VIII 1. 第一章 緒論 1 1.1. 研究背景與動機 1 1.2. 研究目的 2 1.3. 論文架構 3 2. 第二章 文獻回顧 4 2.1. 簡介 4 2.2. 刀具狀態監控方法概述 4 2.2.1. 直接監控法 5 2.2.2. 間接監控法 5 2.3. 以切削溫度在線監控之文獻回顧 9 2.3.1. 切削溫度量測技術 9 2.3.2. 以熱電偶法量測切削溫度監控之文獻回顧 11 2.4. 切削溫度數學模式之探討 12 2.4.1. Loewen與Shaw之數學模式 12 2.4.2. Boothroyd之數學模式 14 2.4.3. 以圓球座標為切削刀具之溫度分佈數學模式 15 2.4.4. 以橢球座標為切削刀具之溫度分佈數學模式 16 2.4.5. 以Green’s function方法推導之數學模式 17 2.5. 小結 19 3. 第三章 研究方法 20 3.1. 簡介 20 3.2. 切削溫度之數學模式 20 3.3. 計算接觸面積 26 3.4. 小結 27 4. 第四章 實驗設計與規劃 28 4.1. 簡介 28 4.2. 實驗規劃 28 4.2.1. 實驗設備 29 4.2.2. 動力計、熱電偶與夾具簡介 34 4.2.3. 非切削實驗設計 37 4.2.4. 切削實驗設計 38 4.3. 小結 40 5. 第五章 實驗結果分析與討論 41 5.1. 簡介 41 5.2. 非切削實驗驗證結果 41 5.3. 切削實驗驗證結果 44 5.4. 遠端熱電偶不同位置結果 50 5.5. 預估穩態溫度 52 5.6. 溫度變化對溫度預估之影響探討 56 5.7. 小結 57 6. 第六章 結論與未來展望 59 6.1. 結論 59 6.2. 未來展望 60 7. 參考文獻 62 | |
dc.language.iso | zh-TW | |
dc.title | 基於遠端熱電偶技術之線上切削溫度監控 | zh_TW |
dc.title | On-line Monitoring of Cutting Temperature by Remote Thermocouple Sensing Technique | en |
dc.type | Thesis | |
dc.date.schoolyear | 100-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 廖運炫,黃信富,盧銘詮 | |
dc.subject.keyword | 切削溫度,在線監控, | zh_TW |
dc.subject.keyword | Cutting temperature,On-line monitoring, | en |
dc.relation.page | 63 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2012-08-13 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 機械工程學研究所 | zh_TW |
顯示於系所單位: | 機械工程學系 |
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