1 - 10 of 31 Search Results for trepanning
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1.
Microholes
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... hole diameters smaller than 100 microns, UV laser drilling with Excimer lasers often is the only practical approach. In mask technique, percussion, trepanning or by step and repeat the hole shape and number of holes per zone is freely programmable. High repetition rates, as produced by the compact excimer ...
Related Searches: drilling | laser drilling
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3.
Diamond Drilling with DPSS Lasers
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... hole in a chemical vapor deposition (CVD) diamond film of 750 µm thickness. This was probably due to the laser’s high irradiance and the use of trepanning. Spot size (µm) Fluence (J/cm²) Drill Time (sec) Irradiance (W/cm²) 10  140  6.25 9.2 X 10 9 Fig. 1 - Drilling Parameters. Fig ...
Related Searches: diamond | avia 266-3000
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4.
pdf_128
(PAGE 1 OF 8)
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... by applying UV-laser radiation. Applications that relate to these laser parameters include precise cutting and drilling, and percussion and trepanning in micro-systems. Ceramics For precise machining of ceramics and avoidance of thermal induced cracking, the third and fourth harmonic of a short pulse ...
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5.
pdf_128
(PAGE 2 OF 8)
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... because of the reduced absorption of laser induced plasma compared to IR-wavelength. The drilling process can be done either by percussion or trepanning. With ns-pulses, heat-conducting effects cause a melting of the layer beneath the surface where the laser beam is absorbed. The vapor pressure inside ...
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6.
pdf_128
(PAGE 5 OF 8)
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... stainless steel using the percussion method with a 10 W UV beam. Taper did not exceed 15% and total drilling time was less than 0.4 seconds. Using trepanning with a relatively low UV power of 4 W, we produced low taper holes with good roundness in 0.55 mm-thick stainless steel and 0.75 mm-thick carbon ...
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7.
pdf_128
(PAGE 6 OF 8)
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... volumes of material with longer pulse durations. Helical drilling uses a multitude of ablation steps to enhance drilling accuracy. In contrast to trepanning, which is essentially a percussion drilling followed by a cutting procedure, the helical drilling reaches the breakthrough after many turns of ...
Related Searches: laser drilling
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8.
pdf_225
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1 chamber is a central technology step to meet this task. But the development engineer's homework has to be done: Planar laser induced fluorescence (PLIF) helps an engineer to inspect fuel injection and the mixing with the in-cylinder air until combustion consumes the fuel. If this mixture formation ...
Related Searches: trepanning head
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9.
ACF612
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T he flexible circuitry industry has seen remarkable growth due to the explosive demand for smaller, lighter, faster, and more powerful electronic devices. This growth has forced the flex industry to increase manufacturing speed and capacity. Lasers have played a significant part in achieving these ...
Related Searches: trepanning head
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