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Han’s Laser Micro Processing: Micro Laser Holes

Han's Laser Micro Processing

Han’s Laser Micro Processing: Micro Laser Holes

With high demand and rapid development of micro-machining technology in civil, industrial, medical, or aerospace fields, the development trends to request higher processing precision and higher finishing quality. 

Traditional machining, EDM and electron beam processing methods cannot meet the technical requirements of high-precision micro-hole machining such as the size and precision, the taper controllability of micro-holes, the ability to deal with a large aspect ratio hole and the wide applications on high hardness, high melting point, and high brittle materials. Laser processing has the advantages of high precision, high efficiency, low cost, low material selectivity, etc. It has become one of the top technologies for high precision micro-processing.

Generally, the holes processed by the scanning galvanometer are all positive tapers, and it is challenging to realize the processing of different taper holes and shaped holes cause the failure to control the touching angle. Widely used long-pulse laser processing has a large heat-affected zone which would get recast layers.

Han’s Laser did deep researches and now launch the “multi-axis ultra-fast micro-machining equipment” HN-GY-PS60, which can not only realize X, Y, Z motion control in three directions and also possible to rea-time control the rotation of the laser beam and the laser touching angle. We also provide assistance options such as coaxial observation camera, fume extractor, and real-time power monitoring system, etc., to help customers manage the process. The customer can realize the drilling and cutting of various holes such as cylindrical holes, positive tapered holes, negative tapered holes, and square holes by any combination of processing parameters.
 

1.Different taper holes processing

1.1 Straight hole (Cross section

Micro Laser Holes
  • Material: 2mm Stainless steel Diameter:220um
    Taper:0°  
    Aspect ratio:9:1
Micro Laser Holes

Material:2.3mm Boron nitride
Diameter:230um
Taper:0°
Aspect ratio:10:1

1.2 Positive taper hole

                               Top view                                                                             Cross section 500x

Micro Laser Holes
Laser Micro Processing
                                                        Material:0.3mmStainless Steel
                                                        Diameter:290/153um 
                                                        Taper:+14° 

1.3 Negative taper hole

                               Top view                                                                             Cross section 300x

Laser Micro Processing
Laser Micro Processing

                                                                Material:0.5mm copper
                                                                Diameter:107/197μm
                                                                Taper: -6.5°

2.Shaped holes

2.1 Squared holes

 Cross section 500x                                         Cross section 1500x

Laser Micro Processing
Laser Micro Processing

Material: 1mm Alumina
Size: 58*58um
Internal distance:9um
Chamfer:7um

 

2.2 Y-shaped holes

         Top                                                               Bottom                                                                500x

Laser Micro Processing
Laser Micro Processing
Laser Micro Processing

Material: 1mm Alumina
Size: 58*58um
Internal distance:9um
Chamfer:7um

 


3. Holes in array

   300X                                                         1000X

Laser Micro Processing
Laser Micro Processing

Material: 0.1 Silicon steel
Range 0.4*0.4mm
Numbers: 100
Diameter:30um
Internal distance:10um
Taper:0°

3.1 Squared blind holes arra

300X                                                               1000X

Laser Micro Processing
Laser Micro Processing

Material:2.3mm Boron nitride
Size of the hole:65*65um
Chamfer:11um
Internal distance:6um

 

4.Drilling on curved surface

           Top                                                     50x Cross section

Laser Micro Processing
Laser Micro Processing
Material:1mm thick wall copper tube
Diameter of the hole:650um
Taper:0°
 

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