surface using a semiconductor laser. the morphology and microstructure of coatings were analyzed using a scanning electron microscope (sem), energy dispersive spectroscopy (eds), and x-ray diffraction (xrd). further, the digital microhardness tester and high-temperature friction and wear tester were used...
worn out disc cutters in tbm for eco-friendly reuse. disc cutters are mainly made of h tool steel. to improve the hardness and wear resistance, a layer of tungsten carbide is coated on the used cutter rings. considering the long operating hours of tbm, cutter rings get worn out due to severe interaction...
cnc multi-tasking center w/ bar feed dmg mori nt dcg/ sz cnc multi tasking center dmg mori nt dcg/ cs cnc multi tasking center w/ " spindle bore l/r with over years in the used cnc machinery business, we know what works, how it works, and the right equipment for the right application. nakamura wt mmy...
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important to adhere to the specific instructions of the printer and software in order to ensure that the guide is made to the desired accuracy. guiding sleeves (gs , gs , gs ) are later attached to the guide. it is mandatory to ensure that the sleeves fit perfectly in the guide and that excess cement (if used...