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不锈钢的皮秒激光冲击微成型：高重复脉冲对热效应的影响。

Picosecond Laser Shock Micro-Forming of Stainless Steel: Influence of High-Repetition Pulses on Thermal Effects.

作者信息

López José Manuel, Munoz-Martin David, Moreno-Labella Juan José, Panizo-Laiz Miguel, Gomez-Rosas Gilberto, Molpeceres Carlos, Morales Miguel

机构信息

Centro Láser, Universidad Politécnica de Madrid, Alan Turing 1, 28038 Madrid, Spain.

Escuela Técnica Superior de Ingenieros Industriales, José Gutiérrez Abascal 2, 28006 Madrid, Spain.

出版信息

Materials (Basel). 2022 Jun 15;15(12):4226. doi: 10.3390/ma15124226.

DOI:10.3390/ma15124226
PMID:35744285
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9228964/
Abstract

A study of the peen forming of thin stainless steel metal foils (50 μm thick) using a solid-state ps-pulsed laser, emitting at a wavelength of 1064 nm was conducted. The pitch distance between consecutive laser pulses was kept constant by tuning the laser repetition rate from 0.4 to 10 kHz, and subsequently the scanning speed. The induced bending angle and the radius of curvature were used to measure the effect of the treatment. Their dependence on the pulse energy, the treated area, the distance between lines, and the laser repetition rate was studied. High repetition rates do not allow the sample to cool down, affecting the bending to the point of being negligible. An FEM simulation and experiments were carried out to prove that the increase in temperature due to high repetition rate can relax the stresses induced by laser peen treatment, thus preventing bending in the sample.

摘要

开展了一项关于使用波长为1064 nm的固态ps脉冲激光对厚度为50μm的薄不锈钢金属箔进行喷丸成形的研究。通过将激光重复频率从0.4 kHz调整到10 kHz以及随后调整扫描速度，使连续激光脉冲之间的间距保持恒定。利用诱导弯曲角度和曲率半径来测量处理效果。研究了它们对脉冲能量、处理区域、线间距和激光重复频率的依赖性。高重复频率不允许样品冷却，对弯曲的影响可忽略不计。进行了有限元模拟和实验，以证明高重复频率导致的温度升高会缓解激光喷丸处理引起的应力，从而防止样品弯曲。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/0588034dcb52/materials-15-04226-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/dcf210e81fee/materials-15-04226-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/794f8471f694/materials-15-04226-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/6d14618ba4b6/materials-15-04226-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/f8cf0c886650/materials-15-04226-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/df4da5f2ff12/materials-15-04226-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/5fd5ca1f0be7/materials-15-04226-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/8f0599b88940/materials-15-04226-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/cfc8c2ff47a5/materials-15-04226-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/963063b42417/materials-15-04226-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/0588034dcb52/materials-15-04226-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/dcf210e81fee/materials-15-04226-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/794f8471f694/materials-15-04226-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/6d14618ba4b6/materials-15-04226-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/f8cf0c886650/materials-15-04226-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/df4da5f2ff12/materials-15-04226-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/5fd5ca1f0be7/materials-15-04226-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/8f0599b88940/materials-15-04226-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/cfc8c2ff47a5/materials-15-04226-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/963063b42417/materials-15-04226-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/afa5/9228964/0588034dcb52/materials-15-04226-g010.jpg

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本文引用的文献

1
Laser Peening Process and Its Impact on Materials Properties in Comparison with Shot Peening and Ultrasonic Impact Peening.激光喷丸工艺及其与喷丸和超声冲击喷丸相比对材料性能的影响。
Materials (Basel). 2014 Dec 10;7(12):7925-7974. doi: 10.3390/ma7127925.
2
Nanosecond-to-femtosecond laser-induced breakdown in dielectrics.纳秒至飞秒激光诱导的电介质击穿
Phys Rev B Condens Matter. 1996 Jan 15;53(4):1749-1761. doi: 10.1103/physrevb.53.1749.