New observations on built-up edge structures for improving machining performance during the cutting of superduplex stainless steel

被引：38

作者：

Ahmed, Yassmin Seid ^{[1
,2
]}

Paiva, Jose Mario ^{[1
]}

Bose, Bipasha ^{[1
]}

Veldhuis, Stephen Clarence ^{[1
]}

机构：

[1] McMaster Univ, Dept Mech Engn, MMRI, 1280 Main St West, Hamilton, ON L8S 4L7, Canada

[2] Alexandria Univ, Prod Engn Dept, Alexandria 21544, Egypt

来源：

TRIBOLOGY INTERNATIONAL | 2019年 / 137卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Built-up edge; Machining of SDSS; Tool wear; Surface integrity; Friction conditions; MINIMUM QUANTITY LUBRICATION; TOOL WEAR; SURFACE INTEGRITY; CHIP FORMATION; MECHANISMS; MACHINABILITY; EVOLUTION; LAYER;

D O I：

10.1016/j.triboint.2019.04.039

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This work features a comprehensive investigation of built-up edge (BUE) formation during machining of superduplex stainless steel (SDSS), grade UNS 532750. To visually investigate HUE formation during the machining test, a detailed examination of HUE structures obtained at different cutting speeds was performed. The BUE geometries were determined by scanning electron microscope (SEM) and 3D white light interferometry. In addition, various BUE adhesion patterns were analyzed through electron backscatter diffraction (EBSD) and nano-indentation methods. The examined BUE revealed a high level of grain refinement and elongation for both ferrite and austenite structures, as well as a tool protection effect at specific cutting speeds. Finally, the influence of BUE on the machining process in terms of chip formation and surface integrity was studied in detail. Considerable improvements could be made to the frictional conditions and workpiece surface integrity at low cutting speeds.

引用

页码：212 / 227

页数：16

共 45 条

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