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首页> 外文期刊>CERAMICS INTERNATIONAL >Cutting responses of additive manufactured Ti6Al4V with solid ceramic tool under dry high-speed milling processes
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Cutting responses of additive manufactured Ti6Al4V with solid ceramic tool under dry high-speed milling processes

机译：干燥高速铣削工艺下固体陶瓷工具的添加剂制造Ti6Al4V的切割响应

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摘要

Additive manufacturing (AM), an advanced manufacturing technology, has nowadays become increasingly popular in aerospace and biomedical fields since it provides the feasibility of producing complex-shaped Ti6Al4V components with faster speed and lower material waste. In order to achieve desirable shape dimensions and surface characteristics, finish machining operations are generally required. However, premature tool failure usually occurs with common carbide tools during the machining process while the performance of solid ceramic tool for AM Ti6Al4V alloy still remains unclear. To this end, the present work aims at studying the cutting responses of additive manufactured Ti6Al4V alloy with solid ceramic tool under dry high-speed milling processes. Various topics including cutting forces and cutting temperature fields as function of machining parameters were analysed. Furthermore, attention was also paid on the chip morphology, machined surface quality and tool wear mechanisms. The results indicate that the feed rate has greater impact on the magnitudes of cutting forces and temperature fields compared to the cuffing speed. The continuous and free broken chips were generated during the milling process and the typically serrated morphology of chips were observed. The solid ceramic tool produces favorable machined surfaces under high-speed machining process apart from the tool edge marks. The mechanisms responsible for tool wear were determined to be micro chipping and chip adhesion owing to the mechanical and thermal loading.
机译：Addive Manufacturing（AM），一种先进的制造技术，现今在航空航天和生物医学领域越来越受欢迎，因为它提供了以更快的速度和更低的材料废物生产复杂的Ti6Al4V部件的可行性。为了实现所需的形状尺寸和表面特性，通常需要精加工操作。然而，过早的刀具故障通常在加工过程中使用普通的硬质合金工具，而AM Ti6Al4V合金的固体陶瓷工具的性能仍然尚不清楚。为此，本作工作旨在在干高速铣削过程下使用固体陶瓷工具进行添加剂制造的Ti6Al4V合金的切割响应。分析了各种主题，包括切割力和切削温度场作为加工参数的功能。此外，还对芯片形态，加工的表面质量和工具磨损机构进行了关注。结果表明，与袖口速度相比，进料速率对切割力和温度场的大幅影响更大。在铣削过程中产生连续和可自由的碎片，并且观察到碎片的典型血液形态。固体陶瓷工具在远离刀刃标记的高速加工过程中产生良好的加工表面。由于机械和热负荷，确定负责工具磨损的机制是微碎裂和芯片粘附。

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