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  • Advanced Natural Gas Reciprocating Engine: Parasitic Loss Control through Surface Modification
    Measure friction of flat-on-flat contact condition with surface modifications included large, conventionally machined circular pockets and laser machined micro- dimples Result .
  • Aerofoil flow separation suppression using dimples
    Experimental measurements using Laser Doppler Anemometry (LDA) were taken in the wake of the Tyrrell026 aerofoil (ReC = 0·5 ´ 105) with a dimple array machined in the surface .
  • FATIGUE BEHAVIOUR OF SHOT PEENED SURFACES
    The lower roughness value of 3-4 ~m measured at low intensities IS assumed to be the background roughness resulting from a combination of the machining process and the dimpling produced by shot which do not plough up the surface .
  • Microstructuring of Thermo-Mechanically Highly Stressed Surfaces
    6.1 Objective and approach..............................................................................93 6.2 Measurement techniques ...........................................................................94 6.3 Measurement of machined micro- dimples ..................................................97 6.4 Measurement of thermal sprayed surfaces ...............................................109 6.5 Multi-measurement methods ....................................................................111 6.6 Conclusion................................................................................................116 7 Tribological mechanisms of microstructures …
  • Ultra-Precision Machining Technologies, CJUMP2011
    SAM has been used to measure the surface , subsurface, and internal damage in machining of brittle materials and assess the depth and nature of cracks in silicon blocks and silicon wafers. … of information, required by silicon wafer process, would be acquired, including thickness, TTV, dimples , saw marks, waviness …
  • Fabrication of micro-dimpled surfaces through micro ball end milling
    The profilometer measured typical surface roughness parameters, of which the maximum profile height was of particular interest since it represented the dimple depth. Dimpled surfaces were machined on an area of 50 mm × 5 mm on the surface of …
  • AIME 113th Annual Meeting
    Dimple size measurements on the fracture surface were carried out for the Ti-3.9 Mn alloy after fracture at both RT and - 196°C. Machining procedure and prior strain at RT were found to affect ductility at - 196°C.
  • Influence of Precorrosion on Fatigue Properties of Shot-Peened Aluminium 7075-T651
    The critical pit depth of the fatigued as- machined and corroded specimens was around 110 mm at … In the SP-treated and corroded specimens fatigued at 172 MPa, a fatigue crack initiated from a surface pit at the boundary between two dimples , where a critical pit depth measured 95 lm [Fig. 5(e)].