Intelligent laser machining system for multi-function processing of superhard materials

2021 ◽  
Author(s):  
Yong Wang ◽  
Wei Wang ◽  
Dongbin Zhang ◽  
Xiaolin Tian ◽  
Jiaojiao Qu ◽  
...  
Keyword(s):  
Laser Machining ◽  
Superhard Materials ◽  
Machining System

scholarly journals Development of Femto-Second Pulsed Laser Machining System for Low Friction Metal Part

2008 ◽  
Vol 36 (3) ◽  
pp. 144-148 ◽  
Author(s):  
Takayuki KATOU ◽  
Nobuyuki ABE ◽  
Masanobu YAMANAKA ◽  
Koutaro MATSUMOTO
Keyword(s):  
Pulsed Laser ◽  
Laser Machining ◽  
Low Friction ◽  
Metal Part ◽  
Machining System

Development of portable laser machining system for laser writing applications

2013 ◽  
Vol 20 (2) ◽  
pp. 167-172 ◽  
Author(s):  
Wen-Tse Hsiao ◽  
Shih-Feng Tseng ◽  
Chien-Kai Chung ◽  
Pin-Hung Chen ◽  
Ming-Fei Chen
Keyword(s):  
Laser Machining ◽  
Laser Writing ◽  
Machining System

A Simple Optical Coupling Method for Water-Jet Guided Laser Machining System

2014 ◽  
Vol 541-542 ◽  
pp. 774-779
Author(s):  
Meng Li ◽  
Wen Wu Zhang ◽  
Xi Ping Zhang ◽  
Tian Run Zhang
Keyword(s):  
Water Jet ◽  
Coupling Method ◽  
Laser Machining ◽  
Optical Coupling ◽  
Spot Pattern ◽  
Coupling Condition ◽  
Laser Focus ◽  
Machining System ◽  
Coupling Parameters ◽  
Pattern Shape

In this paper a simple optical coupling method for water-jet guided laser machining system is introduced and its characteristics are studied. By the introduced method the output spot pattern behind the water-jet was observed instead of the laser focus. In order to acquire the pattern a piece of glass was used to block the water-jet but let the laser through, and a light screen was placed behind the glass in a certain distance to display the pattern image. Since the image scale could be adjusted by changing the distance between the glass and the light screen, the CCD magnifying system was no longer needed. It is found that the pattern varied while the coupling condition changed. Only in small chance the pattern was a tiny spot but more commonly it was in a ring-like shape which could be easily recognized. So such ring-like patterns could be signals for optical coupling guidance. Furthermore a series of study to analyze the correlation between the pattern shape and coupling parameters was carried out by simulation with the help of Zemax.

Experimental Micromachining of Silicon with Nd-YAG Laser

2011 ◽  
Vol 83 ◽  
pp. 244-248 ◽  
Author(s):  
Thet Thet Mon ◽  
Khairul F. Muhamad ◽  
Asnul H Ahmad ◽  
Zazuli Mohid
Keyword(s):  
Experimental Design ◽  
Silicon Surface ◽  
Traverse Speed ◽  
General Information ◽  
Laser Machining ◽  
Surface Plot ◽  
Machining System ◽  
Response Line ◽  
Straight Lines ◽  
Full Factorial

This research centers on experimental laser-micromachining of silicon using solid state pulsed Nd:YAG laser. The laser is equipped with 3-axis controllers with resolution of 1 µm. The main objective is to find out the possibility of using this laser machining system to fabricate a micro feature on silicon. Simple straight lines were generated on silicon surface. The two process parameters – the laser traverse speed and pulse energy- were considered in the experimental design. Two forms of experiments were carried out: (1) processing with air assist gas and (2) processing without the assist gas using the same experimental design. Standard full factorial design of 3kwas used to design the experiments. Repeatability of the machine and nonlinearity were taken into account in the design by adding center points. Sequence of experiments was also randomized. Statistical analysis of experimental results could not show any significant factor. However, the surface plot did provide general information on desirable regions for the response line width, which was consistent with the published results. Micrograph study of the featured lines revealed that the laser processing without the assist gas produced preferable results.

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