fe5b98b8a5-p-1858.pdf - 25 m from the surface in circumferential directions under the feed rate of 0.28 mm\/rev(see Figure 3.20 c This indicates that

fe5b98b8a5-p-1858.pdf - 25 m from the surface in...

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62 Figure 3.21 Temperature distribution in degrees Celsius at different feed rate (cutting speed = 120 m/min, depth of cut = 0.35 mm, HRc=56, cutting edge geometry = 20 ° chamfer by 0.02mm hone radius) Consequently, it can be in Figure 3.20 that the maximum compressive residual stress reaches deeper with the increase of feed rate. For a workpiece with initial hardness of 62 HRC, chamfer with a hone cutting edge generated a maximum compressive residual stress of about 1700 MPa at the depth of about 40 m from the surface in circumferential direction under the feed rate of 0.56 mm/rev (see Figure 3.20 d) while the maximum compressive stress of 1350 MPa reaches about 0 200 400 600 800 1000 0 0.05 0.1 0.15 0.2 Distance from surface (mm) Temperature (C) Feed=0.28 Feed=0.56 Feed rate =0.28 Feed rate =0.56 63 25 m from the surface in circumferential directions under the feed rate of 0.28 mm/rev (see Figure 3.20 c). This indicates that high feed rate generates larger compressive residual stress zone in the subsurface.
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  • Fall '16
  • Karyl Sabbath
  • Absolute Zero, Celsius, Thermodynamic temperature, 0.02mm

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