使用碳化物微型钻孔工具对低碳NiTi合金进行微型钻孔的研究
M Adam Khan1, G Ebenezer1, J T Winowlin Jappes1
1Department of Mechanical Engineering and Centre for Surface Engineering, Kalasalingam Academy of Research and Education , Krishnankoil, Tamil Nadu, 626126, India.
Scientific reports
|November 17, 2025
概括
低碳- (NiTi) 合金的高速微型钻孔使用碳化工具优化了孔的精度,减少了加工时间. 较高的料速率会增加孔径,导致工具磨损.
科学领域:
- 材料科学 材料科学 材料科学
- 制造业 工程 制造工程
- 机械工程 机械工程
背景情况:
- 在产品小型化中对功能性材料的需求不断增长.
- 关于添加碳的低碳- (NiTi) 合金微型钻探的有限研究.
- 合金对于需要精确微尺度特征的先进应用至关重要.
研究的目的:
- 研究微型钻井参数对低碳NiTi合金的影响.
- 优化高速加工以实现精确的微孔生产.
- 分析旋转速度和料速度对孔质量和加工时间的影响.
主要方法:
- 在0.05%重量碳添加NiTi合金中微孔钻500微米的盲孔.
- 使用的碳化 (WC) 微型钻头.
- 在恒定的切割长度下,各种工具旋转速度 (1500-2500rpm) 和料速率 (0.2-0.6mm/min).
主要成果:
- 高速机械加工 (2500rpm) 在最低料速度 (0.2mm/min) 产生了最准确的孔 (501μm).
- 高速加快的料速度导致了更大的孔径和工具曲.
- 高速加工显著减少了钻井时间 (0.43分钟与1.78分钟相比),但导致了严重的工具磨损.
结论:
- 优化的高速加工提供了一种有效的方法,用于生产低碳NiTi合金中的微孔.
- 参数选择对于平衡孔精度,工具完整性和加工效率至关重要.
- 需要进一步研究在NiTi.Ti的高速微型钻井中减轻工具磨损.
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