A Novel Method to Reduce the Laser Drilling Time for Hole Cluster considering the Influence of Residual Vibration of the Sample Stage

In large areas of laser drilling, the residual vibration occurs when the sample stage moves in PTP (Point to Point) movement. It affects the surface quality and processing efficiency of the holes. The common solution for this problem is to set the laser irradiation delay time by the controller to wa...

Full description

Saved in:
Bibliographic Details
Published in:Shock and vibration 2020, Vol.2020 (2020), p.1-15
Main Authors: Li, Jian, Yun, Xialun, Yang, Jun, Mei, Xuesong, Liu, Bin, Wang, Xiaodong, Li, Xiao
Format: Article
Language:English
Subjects:
Acceleration
Analysis
Attenuation
Control algorithms
Controllers
Deceleration
Delay time
Drilling and boring
Efficiency
Identification
Irradiation
Laplace transforms
Laser drilling
Lasers
Methods
Motion control
Optimization
Surface properties
Velocity
Vibration
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In large areas of laser drilling, the residual vibration occurs when the sample stage moves in PTP (Point to Point) movement. It affects the surface quality and processing efficiency of the holes. The common solution for this problem is to set the laser irradiation delay time by the controller to wait for the residual vibration attenuation, but the whole drilling circle will increase. In this paper, a new method is introduced to reduce the laser drilling circle. By setting the allowable threshold of the residual vibration for the subsequent process, the sum of the time in deceleration segment of the trapezoidal moving profile, and the time when the residual vibration attenuates below the amplitude threshold (ST) can be minimized as the optimization goal. The results show that for a given operating speed, there is always an optimum acceleration value for the deceleration segment of the trapezoidal moving profile, which minimizes the ST value. Further, the delay time for laser irradiation can also be estimated according to the optimal acceleration during laser drilling.
ISSN:1070-9622
1875-9203
DOI:10.1155/2020/8342041