Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/91404
標題: Development of An Innovative Non-Scraping Hard Rail for Machine Tool
創新型無鏟花工具機硬軌之研發
作者: 彭昭琳
Zhao-Lin Peng
關鍵字: friction characteristics;surface micro texture;friction force;scraping;摩擦特性;表面微結構;摩擦力;鏟花
引用: [李丞欽,1999] 李丞欽,滑道用潤滑油於低壓低速下之摩擦特性研究,國立臺灣大學機械工程學系碩士論文,1999 [蘇侃,2001] 蘇侃,混合潤滑之模型建立,國科會研究報告,2001。 [片岡征二,2003] 片岡征二原著,沖壓加工的磨潤學,全華科技圖書,台北市,民國 92 年。 [Gleghorn & Bonassar, 2008] J. P. Gleghorn and L. J. Bonassar, 'Lubrication Mode Analysis of Articular Cartilage Using Stribeck Surfaces,' Journal of Biomechaics, 41(9), 2008, pp.1910-1918. [Pettersson & Jacobson, 2004] U. Pettersson and S. Jacobson, 'Friction and Wear Properties of Micro Textured DLC Coated Surfaces in Boundary Lubricated Sliding,' Tribology Letters, Vol. 17, 2004, pp.553-559. [Spikes, 2005] H. Spikes, 'The Thickness, Friction and Wear of Lubricant Films,' Proceedings of the SAE Powertrain and Fluid Systems Conference & Exhibition, 2005, pp.9-10. [Valeri et al, 2006] S. Valeri, E. Gualtieri, D. Marchetto, A. Borghi and L. Moretti,'Impact of Surface Patterning on the Tribological Properties of Nitride Steel for Automotive Applications,' Proceedings of the International Conference on Tribology, 2006, pp.1-7。 [王順等人,2007] 王順,王文中,胡元中,王彗,'點接蝕潤滑粗糙表面滑動摩擦力的預測研究',摩擦學學報,第 27 卷第 2 期,2007,153-155 頁。 [Myshkin, 2007] N. K. Myshkin, 'Friction Transfer Film Formation in Boundary Lubrication,' Tribology International, 2007, pp.154–159. [Nakano et al, 2007] M. Nakano, A. Korenaga, A. Korenaga, K. Miyake, T.Murakami, Y. Ando, H. Usami and S. Sasaki, 'Applying Micro-Texture to Cast Iron Surfaces to Reduce the Friction Coefficient Under Lubricated Conditions,' Tribology Letter,2007, pp.131–137. [King, 2008] R. King,基礎鏟花技術手冊,PMC 手動及電動機械鏟花技術課程講義,2008。 [Sekimizu et al, 2008] T. Sekimizu, T. Harada, H. Tsutsumi, K. Fukuda and A. Kyosojin, 'Tribology Characteristics Estimation of Slide-way Surfaces Finished by Scraping (2nd report)- Relation between Surface Shape and Friction Property,' The Japan Society of Mechanical Engineers, Vol. 14, 2008. pp.69-70. [Sekimizu et al, 2009] T. Sekimizu, T. Harada, H. Tsutsumi, K. Fukuda and A. Kyosojin, 'Tribology Characteristics Estimation of Slide-way Surfaces Finished by Scraping (3rd report)- Relation between Surface Shape and Friction Property,' The Japan Society of Mechanical Engineers, Vol. 15, 2009. pp. 135-136. [林貞仁,2009] 林貞仁,'工具機精度與鏟花關係',亞東學報,第 5 期,2009, 37-65 頁。 [Ogawa, 2009] H. Ogaw, S. Sasaki, A. Korenaga, K. Miyake, .M. Nakano and T. Murakami, 'Effects of Surface Texture Size on the Tribological Properties of Slideways,' Proc. IMechE Part J: Journal of Engineering Tribology, 224(9), 2010, pp.885-890. [克普典,2010] 克普典科技股份有限公司,滑動面耐磨片型錄,2010。 [蔡志成等人,2011] 蔡志成、陳正達、王信誌、柯博修,'以加工紋理降低滑動機構摩擦之探討' 第 14 屆全國機構與機器設計學術研討會論文集 J-001, 2011。 [蔡志成等人,2012] 蔡志成、賴勇澍、王信誌、林明賢,'具微型油溝之滑動面摩擦特性實驗探討' 第八屆全國精密製造研討會論文集 341-347 頁 2012。 [林明賢,2013] 林明賢,具混合型紋理滑動面之進給系統摩擦特性探討,國立 興大學機械工程系碩士論文,2013。 [王信誌&蔡志成,2013] 王信誌、蔡志成,'具微型油袋之滑動面摩擦探討',第十六屆全國機構與機器設計學術研討會論文集,CSMMT2013-1-5,2013。 [Ramesh et al, 2013] Ramesh, W. Akram, S.P. Mishra, A.H. Cannon,W.P. King,'Friction Characteristics of Micro Textured Surfaces under Mixed and Hydrodynamic Lubrication,' Tribology International, Vol. 57, 2013, pp 170-176. [Segu et al, 2013] D. Z. Segu, S. G. Choi, J. H. Choi, S. S. Kim, 'The Effect of Multi-Scale Laser Textured Surface on Lubrication Regime,'Applied Surface Science, Vol. 270, 2013, pp. 58-63. [Bhushan, 2013] B. Bhushan, Introduction to Tribology, John Wiley & Sons, New York, 2013. [蔡志成&王信誌,2014] 蔡志成與王信誌,'機械工業基礎技術之精進—以加工紋理替代工具機硬軌鏟花之摩擦性能初探' PMC 技術通報 Vol.238 2014,16-21 頁。 [Wang & Tsai, 2014] H.-C. Wang and J.-C. Tsai, 'Analysis of Sliding Friction for Surface with Micro-Scale Circumferential Grooves,' Proceedings of 2014 International Conference on Engineering Tribology Technology, 2014. (to appear)
摘要: 
Slideway of a machine tool often employ hard rail, i.e. sliding contact instated of
rolling contact, for its feeding system in particular for heavy-duty machines. While
hard rail requires lubrication on the contact surface, manual scraping is the most
commonly used approach to improve the friction characteristics as the scraped surface provides channels for lubricant to spread over the surface. However, manual
scrapping is an inherited craftsman technique that led the quality of scrapping highly
depends on craftsmanship and results in incapable of controlling the performance of
sliding surface. Based on fluid dynamics, this research developed a micro-structure
texture, which can be fabricated by computer numerical controlled machining, on
sliding surface as a replacement of manual scrapping. Frictional performances of
these designed hard rails with micro-scale texture are further measured in a feeding
system to verify its feasibility.
The results of this research can be summarized as follows: (1) The friction
coefficients of the developed hard rail with micro texture are between 0.04 and 0.05,
under surface pressure from 0.8 to 2.3 kgf/cm2 and velocity from 1200 to 4200
mm/min, which outperforms current industrial practice by manual scraping; (2)
Surface texture with transversal grooves at the front provides better flowability for
lubricants that results in less friction; (3) Surface texture with grooves passed through multiple dimpled oil cavity provides better frictional characteristics as the lubricants can rapidly flow into the dimpled cavity that reduces the friction; (4) Although the Turcite-coated surface gives higher friction, the friction coefficient keeps stable as the sliding velocity increased.
The results in this research showed that the newly developed non-scraping hard
rail provides better frictional performance than those with manual scrapping in current machine tool industry. Moreover, this developed hard rail can replace manual
scrapping to improve the quality and the machining efficiency.

承受重負載與重切削的工具機大多採用硬軌作為進給機構之軌道,硬軌在
接觸面需鏟花使潤滑油進入接觸面間以改善摩擦特性。但鏟花技術為師徒相傳之相傳技藝,鏟花品質因人而異,無法有效掌控滑動面之性能。本研究根據流體力學分析,在接觸面設計可使用 CNC 加工之表面微結構紋理,並實際加工量測其摩擦性能,驗證其可行性。
本研究之重要成果歸納如下:(1)本研究所發展具微結構紋理之硬軌經實際使用於進給系統測試,結果顯示在面壓 0.8 至 2.3 kgf/cm2 以及速度 1200 至 4200mm/min 的常用範圍內,所表現之摩擦係數皆非常穩定,其值介於 0.04 到 0.05之間,已較目前工具機產業鏟花後之摩擦表現為佳;(2)表面紋理橫向溝槽的位置會影響潤滑油的流動特性 將橫向溝槽設置在前端之紋理對於潤滑油的流動性,較佳;(3)接觸面運動時,油溝通過多個油袋之紋理有助於潤滑油快速地流入各油袋,使摩擦係數快速下降而有較佳的摩擦性能;(4)貼覆 Turcite 的滑塊在低面壓的情況下,雖然摩擦係數較高,但隨著速度增加,其摩擦係數皆非常穩定。本研究之結果顯示所發展之創新型無鏟花硬軌所表現之摩擦性能已較目前工具機產業鏟花後之硬軌為佳,顯示本研究之成果可取代機械產業硬軌之手工鏟花,以提升硬軌之品質掌控及加工效率。
URI: http://hdl.handle.net/11455/91404
Rights: 同意授權瀏覽/列印電子全文服務,2018-05-11起公開。
Appears in Collections:機械工程學系所

Files in This Item:
File Description SizeFormat Existing users please Login
nchu-103-7101061405-1.pdf2.29 MBAdobe PDFThis file is only available in the university internal network   
Show full item record
 

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.