滾珠螺桿材料SCM415與50CrMo4之表面磨耗特性研究

Study on the Surface Wear Characteristics for SCM415 and 50CrMo4 of Ball Screw Materials

卓彥夆(Yen-Feng Cho)

指導教授 ： 魏進忠

國立虎尾科技大學/工程學院/機械與機電工程研究所/碩士(2014年)

摘要

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。

關鍵字

滾珠螺桿 ； 熱處理 ； 摩擦 ； 磨耗 ； 表面形貌

並列摘要

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.

並列關鍵字

Ball Screw ； Heat Treatment ； Friction ； Wear ； Surface Topography

參考文獻

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