靶材背面辅助材料影响激光打孔重铸层分布的实验研究

杜晓婷 1; 段文强 1; 王恪典 1; 董霞 1; 梅雪松 1; 3; 王文君 1; 2; 3

doi:10.7652/xjtuxb201708021

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靶材背面辅助材料影响激光打孔重铸层分布的实验研究

更新时间：2025-07-09

- 靶材背面辅助材料影响激光打孔重铸层分布的实验研究
- Experimental Investigation of Recast Layer Distribution Affected by Auxiliary Target Back Materials During Laser Drilling
- 西安交通大学学报 2017年51卷第8期页码：128-135
- 作者机构：
  
  1. 西安交通大学陕西省智能机器人重点实验室,西安,710049
  2. 西安交通大学机械制造系统工程国家重点实验室,西安,710049
  3. 西安交通大学机械工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2017-03-08。作者简介: 杜晓婷(1992—),女,硕士生;王恪典(通信作者),男,教授。基金项目: 国家自然科学基金资助项目(51375374,51575432);教育部长江学者和创新团队发展计划资助项目(IRT_15R54)
- DOI：10.7652/xjtuxb201708021
  中图分类号： TG665
- 网络首发：2017-08-10，
  
  纸质出版：2017
- 稿件说明：
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杜晓婷 1, 段文强 1, 王恪典 1, 等. 靶材背面辅助材料影响激光打孔重铸层分布的实验研究[J]. 西安交通大学学报, 2017,51(8):128-135.

Experimental Investigation of Recast Layer Distribution Affected by Auxiliary Target Back Materials During Laser Drilling[J]. 2017, 51(8): 128-135.
杜晓婷 1, 段文强 1, 王恪典 1, 等. 靶材背面辅助材料影响激光打孔重铸层分布的实验研究[J]. 西安交通大学学报, 2017,51(8):128-135. DOI： 10.7652/xjtuxb201708021.

Experimental Investigation of Recast Layer Distribution Affected by Auxiliary Target Back Materials During Laser Drilling[J]. 2017, 51(8): 128-135. DOI： 10.7652/xjtuxb201708021.

摘要

针对激光直冲加工微小孔时

孔出口重铸层较厚、毛刺较多的问题

提出了在靶材背面增加辅助材料的方法

探究不同吸光能力的材料对激光打孔重铸层分布的影响。辅助材料按照吸光能力分为透射光材料、吸收光材料和散射光材料

选择的3种典型代表材料为石英玻璃、石蜡和NaCl

分别对3种材料激光打孔孔口形貌和重铸层厚度的影响进行实验研究

并对其作用机理进行了深入分析。实验结果显示:背面增加辅助材料可以有效地减小出口的重铸层厚度和出口毛刺

但入口重铸层厚度有不同程度的增加

且脉宽对打孔结果有明显影响; 相比之下

NaCl的作用效果最佳

其入口重铸层增量较小

出口干净圆整

重铸层厚度减小了60%以上

减至10～15 μm。

Abstract

To reduce thickness of recast layer and burr around the hole exiting in laser percussion drilling

adding auxiliary materials on target back is considered to explore the effect of auxiliary materials with different absorption ability on the distribution of recast layer. High-transparency material(quartz glass)

high-absorptivity material(paraffin)and light-scattering material(NaCl)are selected to investigate their corresponding impacts on the morphology of holes and thickness of recast layer. It is revealed that the strategy including these three different materials is able to effectively reduce the thickness of recast layer and the burr around hole exit

while the thickness of recast layer around the hole entrance increases to different extents for various auxiliary materials

and the pulse duration obviously affects the drilling result. Compared with the other two materials

NaCl gains advantage of smaller increase in recast thickness around the hole entrance

and reduces the recast layer thickness around the hole exit to 10-15 μm

namely

reduces the thickness by more than 60%.

关键词

Keywords

references

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