On wear of WC–Co cutting inserts in turning of Ti6Al4V – a study of wear surfaces

IF 1.6 Q4 MATERIALS SCIENCE, COATINGS & FILMS
P. Olander, J. Heinrichs
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引用次数: 5

Abstract

ABSTRACT Titanium alloys are known to cause crater wear on cutting inserts. It is one of the life-limiting factors for the tool life and highly influenced by the cutting parameters. To increase productivity, there is a strong incentive to increase the production speed. At the same time, the tool life should be unchanged or even prolonged. The influence of cutting speed, feed and cutting length on wear was investigated in turning tests using cemented carbide inserts and titanium alloy Ti6Al4V as work material. The results showed a very strong influence from all parameters on crater wear, confirming previous findings reported in the literature. The resulting wear surfaces were studied in detail, revealing a crater filled with transferred titanium alloy. The tungsten carbide grains underneath were depleted of carbon, resulting in a nano-rough top surface rich in tungsten. In addition, the turning tests showed a threshold cutting speed, below which no crater wear occurred.
WC-Co切削刀片在Ti6Al4V车削过程中的磨损——磨损面研究
摘要众所周知,钛合金会导致切削镶片上的凹坑磨损。它是刀具寿命的限制因素之一,受切削参数的影响很大。为了提高生产力,有强烈的动机来提高生产速度。同时,工具寿命应保持不变,甚至延长。以硬质合金刀片和钛合金Ti6Al4V为切削材料,研究了切削速度、进给量和切削长度对磨损的影响。结果表明,所有参数对弹坑磨损都有很大的影响,证实了文献中先前报道的发现。对由此产生的磨损表面进行了详细研究,发现了一个充满转移钛合金的弹坑。下面的碳化钨颗粒耗尽了碳,导致顶部表面纳米粗糙,富含钨。此外,车削试验显示了一个临界切削速度,低于该速度不会发生凹坑磨损。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Tribology - Materials, Surfaces & Interfaces
Tribology - Materials, Surfaces & Interfaces MATERIALS SCIENCE, COATINGS & FILMS-
CiteScore
2.80
自引率
0.00%
发文量
15
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