激光熔覆Ti-6Al-4V高速铣削切削力研究

张立峰; 王盛; 王宁; 唐杰; 陈鑫灿; 安海涛

doi:10.13433/j.cnki.1003-8728.20200085

激光熔覆Ti-6Al-4V高速铣削切削力研究

doi: 10.13433/j.cnki.1003-8728.20200085

中国民航大学航空工程学院，天津　300300

基金项目: 高等教育中央高校基本科研项目（3122018C007）

详细信息

作者简介:
张立峰（1983−），讲师，硕士生导师，博士，研究方向为航空材料精密加工，复合材料界面力学，zhanglifeng@tju.edu.cn

中图分类号: TB332
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- 文章访问数: 202
- HTML全文浏览量: 45
- PDF下载量: 37
- 被引次数: 0
出版历程
- 收稿日期: 2019-12-24
- 网络出版日期: 2021-04-16
- 刊出日期: 2021-04-16

Study on Cutting Force in High Speed Milling of Laser Cladding Ti-6Al-4V

Aeronautical Engineering College, Civil Aviation University of China, Tianjin 300300, China

摘要

摘要: 为了研究激光熔覆Ti-6Al-4V这类材料的高速切削加工性能，探明高速铣削切削力的影响机制，采用硬质合金刀具侧铣工艺对激光熔覆和铸造钛合金进行高速铣削的对比实验研究。结果表明，激光熔覆Ti-6Al-4V铣削时出现明显的各向异性，其中沿熔覆轨迹0°方向铣削时切削力最大，90°方向铣削时切削力最小，且各方向铣削力均低于铸造型钛合金。钛合金铣削过程中，当切削速度超过400 m/min时，铣削主切削力呈明显降低趋势。此外，铣削参数每齿进给量和铣削深度是影响切削力变化最显著的因素。
- 高速铣削 /
- 切削力 /
- 钛合金 /
- 激光熔覆
Abstract: Laser cladding Ti-6Al-4V has been widely used in aerospace because of its excellent comprehensive properties. In order to study the high-speed cutting performance of laser cladding Ti-6Al-4V and explore the influence mechanism of high-speed milling cutting force, a comparative experimental study onhigh-speed milling of laser cladding and cast Ti-6Al-4V was carried out. The results showed that there was the obvious anisotropy in the milling of laser cladding Ti-6Al-4V, in which the cutting force was the largest in a direction of 0° along the cladding path, and the smallest in a direction of 90° along the cladding path, and the cutting force in all directions was lower than that of cast Ti-6Al-4V. In addition, when the cutting speed was more than 400 m/min, the main cutting force decreased obviously. The feed per tooth and milling depth of milling parameters were the most significant factors affecting the cutting force.
- high speed milling /
- cutting force /
- titanium alloy /
- laser cladding

HTML全文

图 1 动态切削力测试平台

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图 2 铣削方向对激光熔覆TC4的影响

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图 3 每齿进给量对主切削力的影响

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图 4 铣削深度对主切削力的影响

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图 5 铣削速度对主切削力的影响

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表 1 熔覆TC4粉末成分组成 %

w(Al)	w(V)	w(Fe)	w(C)	w(N)	w(H)	w(O)	w(Ti)
5.5	3.5	0.3	0.1	0.05	0.015	0.2	余量

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表 2 铣削实验参数表

类型	实验参数
铣床型号	FANUC-robodrill α-D14MiA立式加工中心
铣削方式	侧铣
加工材料	激光增材TC4
铣刀类型	Walter WMG40硬质合金刀具
铣刀直径	20 mm
刀具刃数	2
刀具参数	前角12°，后角14°，螺旋角35°
冷却方式	50 L/min，乳化液（ 5%）
铣削速度v	100，200，400， 600，800 mm/min
每齿进给量f_z	0.02，0.04，0.06， 0.08，0.10 mm
切削深度a_e	0.4，0.6 ，0.8，1.0，1.2 mm

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参考文献(16)

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