臺灣博碩士論文加值系統

由於滾珠螺桿被大量運用於高精密工作母機的移動平台上，且為機械工業重要的關鍵零組件之一，故對其提升相關產業之競爭力，及高性能傳動元件之開發上有其必要性。此外，為了保持元件之精密度與增加使用壽命，便經常對材料施予熱處理，而在材料經熱處理後，其表面摩擦特性與表面形貌變遷，成為相當重要的設計參數特性。
本研究旨在探討螺帽材料SCM415與螺桿材料50CrMo4於不同熱處理方式下之表面磨耗特性與表面形貌變遷。為了解其滾珠與螺桿及滾珠與螺帽間之滾滑現象，藉由實驗機台對球與平面進行往復式來回運動，模擬其滾珠的滑動情形，並搭配旋轉運動得其滾珠滑動之真實現象。根據滑動與滾滑現象，分析其對材料表面磨耗與摩擦係數之關係，以及表面形貌於不同條件下之形貌變遷情形，藉以評估其滾珠螺桿材料之磨耗特性。

Due to ball screw has been used widely in high accurate mechanical engineering, and played a very important role in one of the Machine Industry. It is necessity for enhancing competitiveness of relation industry and developing the high performance drive elements. It conducted heat treatment in order to maintain accuracy of elements and increasing using life. Then, the surface friction characteristics and surface topography changes became a very important design parameter characteristic.
This study investigates the nut- SCM415 and screw- 50CrMo4, which surface friction characteristics and surface topography changes after heat treatment.The study would like to understand the phenomenon difference between ball and screw and that between ball and nut. Using the experimental machine to simulate phenomena of sliding of ball by reciprocating methodand collocate with the rotational movement to obtain the real phenomenon of sliding of ball. Through phenomenon of sliding of ball analyzes relation of the wear and the friction coefficient of the surface so that assess the wear characteristics of the ball screw material.

中文摘要.............................................................i
英文摘要............................................................ii
誌謝...............................................................iii
目錄................................................................iv
表目錄..............................................................vi
圖目錄.............................................................vii
符號說明.............................................................x
第一章緒論...........................................................1
1.1前言..............................................................1
1.2研究動機..........................................................1
1.3研究目的..........................................................2
1.4文獻回顧..........................................................2
1.4.1滾珠與軌道接觸行為..............................................2
1.4.1.1接觸行為......................................................2
1.4.1.2溝槽接觸牙型..................................................3
1.4.2摩擦............................................................3
1.4.2.1摩擦力........................................................3
1.4.2.2磨耗..........................................................4
1.4.3熱處理..........................................................5
1.4.3.1正常化........................................................5
1.4.3.2退火..........................................................6
1.4.3.3淬火..........................................................6
1.4.3.4回火..........................................................6
1.4.3.5滲碳..........................................................6
1.4.3.6深冷..........................................................7
1.4.3.7高週波........................................................7
1.5論文架構..........................................................7
第二章理論分析......................................................14
2.1接觸理論.........................................................14
2.1.1赫茲接觸.......................................................14
2.1.2表面接觸區.....................................................15
2.1.3表面接觸行為...................................................16
2.2磨潤學...........................................................18
2.2.1摩擦...........................................................18
2.2.2潤滑...........................................................19
2.2.3磨耗...........................................................20
第三章實驗目的與設備................................................29
3.1實驗目的.........................................................29
3.1.1實驗方法.......................................................32
3.1.2實驗材料.......................................................33
3.2實驗條件.........................................................35
3.2.2實驗步驟.......................................................37
3.3實驗設備.........................................................38
3.3.1直立式磨耗試驗機...............................................38
3.3.2光學顯微鏡.....................................................39
3.3.3三維表面輪廓儀.................................................40
3.3.4微小維氏硬度儀.................................................41
3.3.5研磨機.........................................................42
3.3.6超音波振洗機...................................................42
3.3.7表面粗度儀.....................................................42
第四章實驗結果與討論................................................43
4.1經複合熱處理後SCM415與50CrMo4之磨潤特性..........................44
4.2經熱處理後SCM415與50CrMo4表面磨耗行為............................63
4.2.1經熱處理後之SCM415於光學顯微鏡下之表面磨耗行為.................65
4.2.2經熱處理後之50CrMo4於光學顯微鏡下之表面磨耗行為................69
4.2.3經熱處理後於三維表面輪廓儀下之表面輪廓分析.....................73
4.2.3.1於三維表面輪廓儀下之SCM415之磨耗表面分析.....................74
4.2.3.2於三維表面輪廓儀下之50CrMo4之磨耗表面分析....................81
4.3經熱處理後於三維表面輪廓儀下之磨耗體積...........................88
4.3.1乾摩擦.........................................................88
4.3.2油脂潤滑.......................................................90
第五章結論與未來展望................................................93
5.1結論.............................................................93
5.2未來展望.........................................................94
參考文獻............................................................95
英文論文大綱........................................................98
簡歷(CV)...........................................................101

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