分析高压电场在激光材料加工中的应用

IF 4 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Christian Frey , Mikail Kacar , Arda Hiz , Robert Gerlach , Willem Leterme , Simon Olschok
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引用次数: 0

摘要

激光材料加工已成为工业制造中的一项重要技术,其形式包括焊接、钻孔、切割和加工。然而,像金属蒸气羽流这样的过程发射带来了挑战,因为它们会通过反射、吸收和散射损害激光过程的效率和精度。传统的方法试图通过使用保护气体从激光束路径中去除粒子来减少金属蒸汽羽流的影响。一种新颖的替代方法是利用电场对金属蒸气进行有针对性的操纵,以控制消光效应。高压电容器可以精确地控制电场,对动态激光过程具有更大的适应性。下面的研究探讨了在激光焊接过程中,利用高压电容器结构产生电场来主动偏转激光束路径上的金属蒸气。采用有限元法对所考虑的电容器几何形状进行了电场分布分析。焊缝几何形状随电容器布置的不同呈现出不同的几何形状,焊缝穿透深度随电场的使用而减小。可测量的趋势仍然是初步的,因为假设焊接烟雾被电场保持在焊接位置,这影响了结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Analyzing the utilization of high-voltage electric fields for laser material processing
Laser material processing has become an essential technique in industrial manufacturing in form of welding, drilling, cutting and structuring. However, process emissions such as the metal vapor plume pose a challenge, as they can impair the efficiency and precision of the laser process through reflection, absorption, and scattering. Conventional methods attempt to reduce the influence of the metal vapor plume by using shielding gases to remove the particles from the laser beam path. A novel alternative is the use of electric fields for targeted manipulation of the metal vapor to control the extinction effects. High voltage capacitors can precisely control the electric field which offers greater adaptability to a dynamic laser process. The following study investigates the utilization of high voltage capacitor configurations for generating electric fields to actively deflect metal vapor from the laser beam path during laser welding. The distribution of the electric field is analyzed using the finite element method (FEM) for the considered capacitor geometries. The weld seam geometry shows a distinct geometry depending on the selected capacitor arrangement, and the weld penetration depth decreases with the use of the electric field. The measurable trend remains preliminary, since it is assumed that the welding fume is held over the welding position by the electric field, which influences the result.
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来源期刊
CiteScore
7.10
自引率
9.80%
发文量
58
审稿时长
44 days
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