High Speed Machining of Ti-6Al-4V Alloy with PVD Coated Carbide End Mills under Oils on Water Cooling

Xiao Bai-jun; Liu Jie; Xiao Xiao-lan; Wang Qi-min

doi:10.12052/gdutxb.170164

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High Speed Machining of Ti-6Al-4V Alloy with PVD Coated Carbide End Mills under Oils on Water Cooling

更新时间：2026-05-27

- High Speed Machining of Ti-6Al-4V Alloy with PVD Coated Carbide End Mills under Oils on Water Cooling
- Vol. 35, Issue 4, Pages: 10-24(2018)
- 作者机构：
  
  1. 广东工业大学　机电工程学院,广东,广州,510006
  2. 广州番禺职业技术学院　机电工程学院,广东,广州,511483
- 作者简介：
- 基金信息：
- DOI：10.12052/gdutxb.170164
  CLC： TG711;TG174.4
- Online First：09 July 2018，
  
  Published：2018
- 稿件说明：
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肖白军, 刘杰, 肖晓兰, 王启民. OoW冷却方式对涂层立铣刀具高速加工钛合金Ti-6Al-4V切削特性的影响[J]. 广东工业大学学报, 2018, 35(4): 10-24.

Xiao Bai-jun, Liu Jie, Xiao Xiao-lan, et al. High Speed Machining of Ti-6Al-4V Alloy with PVD Coated Carbide End Mills under Oils on Water Cooling[J]. 2018, 35(4): 10-24.
肖白军, 刘杰, 肖晓兰, 王启民. OoW冷却方式对涂层立铣刀具高速加工钛合金Ti-6Al-4V切削特性的影响[J]. 广东工业大学学报, 2018, 35(4): 10-24. DOI： 10.12052/gdutxb.170164.

Xiao Bai-jun, Liu Jie, Xiao Xiao-lan, et al. High Speed Machining of Ti-6Al-4V Alloy with PVD Coated Carbide End Mills under Oils on Water Cooling[J]. 2018, 35(4): 10-24. DOI： 10.12052/gdutxb.170164.

摘要

冷却方式在切削难加工材料的过程中扮演了一个非常重要的角色

例如加工钛合金. 本文对一种称谓“OoW”的冷却方式在AlCrN/AlTiSiN涂层立铣刀加工钛合金Ti-6Al-4V过程中对刀具的切削特性的影响进行了研究. 在不同水含量(1.5

3.0

4.5 L/h)润滑油含量(20

50 mL/h)和润滑剂类型(1000-20、2000-30合成酯、2000-10脂肪醇)的条件下

对刀具的磨损、切削力、切削温度、工件的表面粗糙度以及切屑形态进行了研究. 实验结果表明

低水量(1.5L/h)能显著地提高刀具的切削特性. 然而

润滑剂含量以及类型对刀具的切削特性影响不明显. 同时

OoW冷却方式与干切、湿切、低温微量润滑3种润滑方式进行了对比. 结果显示低含水量(1.5L/h)OoW冷却方式比其他3种冷却方式对刀具磨损最小、磨损率最低

同时工件的表面粗糙度也最小. 这归因于OoW冷却方式融合了水的优良冷却特性和油的高润滑性. 此外

冷却方式和冷却参数对切屑的形态有影响.

Abstract

The cooling strategy plays an important role during the machining of difficult-to-cut materials

such as titanium alloys. In this work

an oils on water (OoW) cooling was investigated with coated carbide end mills with AlCrN/AlTiSiN coatings during the Ti-6Al-4V alloy machining. Through various amounts of water (1.5

3 and 4.5 L/h)

oil (20

50 mL/h) and lubricant types (1000-20 and 2000-30 synthetic ester

2000-10 fatty alcohol)

tool wear

cutting force

cutting temperature

the surface roughness and chip morphologies were observed under the OoW cooling condition. The cutting performances were compared for all conditions

where a low amount of water (1.5 L/h) demonstrated significant improvement in the cutting performances of the coated tools

while the lubricants and amount of oil had low effects. The effect of OoW cooling on the cutting performance was also studied in comparison with dry cutting

flood cutting and minimal quantity lubrication with cryogenic air (CAMQL) cooling. For the optimized water amount at 1.5 L/h

the lower tool wear and surface roughness of the machined surface were observed. The wear rate of the coated tool through OoW cooling was also significantly slower compared to dry cutting

flood cutting and CAMQL cooling. The reason for improvement under the OoW cooling condition originated from the improved cooling effect compared to other cooling strategies

due to the excellent combined cooling effect of water and oil lubrication through OoW cooling. In addition

the chip morphology was also observed to be affected by both the cooling strategy and cooling parameters.

关键词

Keywords

references

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