Experimental Investigation and Mechanism Analysis on Deep-Hole Drilling of TC4 Titanium Alloy

CHEN Jie; HU Meng; GUO Guoqiang; SUN Chengcheng; MING Weiwei; SUN Fanghong

doi:10.16080/j.issn1671-833x.2018.21.094

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Experimental Investigation and Mechanism Analysis on Deep-Hole Drilling of TC4 Titanium Alloy

更新时间：2025-10-30

- Experimental Investigation and Mechanism Analysis on Deep-Hole Drilling of TC4 Titanium Alloy
- Aeronautical Manufacturing Technology Vol. 61, Issue 21, Pages: 94-99(2018)
- 作者机构：
  
  1. 上海交通大学机械与动力工程学院,上海,200240
  2. 上海航天精密机械研究所,上海,201600
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2018.21.094
  CLC：
- Published：2018
- 稿件说明：
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陈杰，胡蒙，郭国强，孙程成，明伟伟，孙方宏. TC4 钛合金深孔钻削试验研究与机理分析[J]. 航空制造技术, 2018, 61(21): 94-99.

CHEN Jie, HU Meng, GUO Guoqiang, SUN Chengcheng, MING Weiwei, SUN Fanghong. Experimental Investigation and Mechanism Analysis on Deep-Hole Drilling of TC4 Titanium Alloy[J]. Aeronautical Manufacturing Technology, 2018, 61(21): 94-99.
陈杰，胡蒙，郭国强，孙程成，明伟伟，孙方宏. TC4 钛合金深孔钻削试验研究与机理分析[J]. 航空制造技术, 2018, 61(21): 94-99. DOI： 10.16080/j.issn1671-833x.2018.21.094.

CHEN Jie, HU Meng, GUO Guoqiang, SUN Chengcheng, MING Weiwei, SUN Fanghong. Experimental Investigation and Mechanism Analysis on Deep-Hole Drilling of TC4 Titanium Alloy[J]. Aeronautical Manufacturing Technology, 2018, 61(21): 94-99. DOI： 10.16080/j.issn1671-833x.2018.21.094.

摘要

TC4 钛合金深孔钻削过程中钻削温度高、排屑路径长，加剧刀具磨损，影响深孔加工质量和精度。为制定可用于实际生产的钛合金深孔钻削加工参数，开展TC4 钛合金深孔枪钻加工试验。试验结果表明，钻削温度受钻削速度影响较大，进给量的影响不显著；孔径和圆度随着钻削速度的增加而增大，同轴度随着切削速度增加而先增大后减小；孔的表面粗糙度随着钻削参数的增加而增大，且大参数下深孔表面质量进一步恶化；各组试验加工硬化层在 30μm 左右，且随着钻削速度增加，切屑挤压变形严重。综合分析后制定的干切削条件下TC4 钛合金深孔枪钻的钻削速度为20m/min，进给量为0.08mm/r。

Abstract

In the deep hole drilling process of TC4 titanium alloy

due to high drilling temperature and long chip removal path

the tool wear was aggravated

which affected the quality and accuracy of deep hole. In order to establish the processing parameters for deep-hole drilling of TC4 for actual production process

the gun drilling experiment of TC4 titanium alloy was carried out. The results indicated that drilling temperature was greatly affected by drilling speed

and the influence of feed rate was not significant. Deep-hole diameter and roundness increased with the increase of drilling speed

the co-axiality increased firstly and then decreased with the increase of drilling speed. Surface roughness of deep-hole increased with the increase of drilling parameters

surface quality of deep-hole was further deteriorated under large drilling parameters. Work hardening layer of each group was about 30μm

and with the increase of drilling speed

extrusion deformation of the chip was more serious. After the comprehensive analysis

drilling speed was 20m/min

feed rate was 0.08mm/r

which were the optimum processing parameters of TC4 titanium alloy deep-hole gun drilling under dry conditions.

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