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68 Mircea Cozmîncă et al. Table 3 40C10 – The influences of tool´s geometry and cutting feed Cut material/ Tool´s type σo [daN/ mm 2 ] t [mm] s [mm/ rev] n [rev/ min] L [mm] La [mm] D [mm] Cd Fz [daN] mz 40C10/ Co 78 2 0.1 0.25 630 630 36.56 36.56 19.86 20.74 51.0 51.0 1.84 1.76 52.5 110.0 0.98 0.82 40C10/ C1 78 2 0.1 0.25 630 630 37.03 37.03 17.49 19.38 51.6 51.6 2.12 1.91 59.0 117.3 0.91 0.86 40C10/ C2 78 2 0.1 0.25 630 630 36.56 36.56 20.32 22.84 51.0 51.0 1.80 1.60 55.0 113.0 1.16 1.29 40C10/ C3 78 2 0.1 0.25 630 630 36.56 36.56 23.8 26.36 51.0 51.0 1.54 1.39 54.7 104.7 1.95 2.05 40C10/ C4 78 2 0.1 0.25 630 630 36.56 36.56 21.14 22.62 51.0 51.0 1.73 1.62 40.4 103.4 0.60 0.88 Cut material/ Tool´s type MoCM14/ Co MoCM14/ C1 MoCM14/ C 2 MoCM14/ C3 MoCM14/ C 4 Table 4 MoCM14 – The influences of tool´s geometry and cutting feed σo [daN/ mm 2 ] t [mm] s [mm/ rev] n [rev/ min] L [mm] La [mm] D [mm] Cd Fz [daN] mz 74 1 0.1 0.25 400 400 51.09 51.09 30.53 32.16 69.5 69.5 1.67 1.59 57.9 116.4 2.99 2.96 74 1 0.1 0.25 400 400 50.54 50.54 23.47 25.12 68.8 68.8 2.15 2.01 60.9 134.3 1.88 1.98 74 1 0.1 0.25 400 400 50.14 50.14 28.11 29.96 68.3 68.3 1.78 1.67 58.9 119.5 2.60 2.64 74 1 0.1 0.25 400 400 50.14 50.14 18.08 20.14 68.3 68.3 2.77 2.49 57.1 118.0 1.01 1.04 74 1 0.1 0.25 400 400 50.14 50.14 21.84 24.13 68.3 68.3 2.30 2.10 50.3 102.6 1.22 1.24 Table 5 OSC10 – The influences of tool´s geometry and cutting feed Cut material/ Tool´s type σo [daN/ mm 2 ] t [mm] s [mm/ rev] n [rev/ min] L [mm] La [mm] D [mm] Cd Fz [daN] mz OSC10/ Co 52 2 0.1 0.25 500 500 57.9 57.9 25.6 28.3 78.2 78.2 2.26 2.05 59.4 119.2 1.13 1.12 OSC10/ C1 52 2 0.1 0.25 500 500 57.0 57.0 22.5 24.3 77.0 77.0 2.53 2.35 65.3 137.2 1.09 1.07 OSC10/ C2 52 2 0.1 0.25 500 500 57.0 57.0 23.9 25.9 77.0 77.0 2.38 2.20 61.2 128.6 1.05 1.04 OSC10/ C3 52 2 0.1 0.25 500 500 57.0 57.0 27.6 29.9 77.0 77.0 2.06 1.90 57.8 113.9 1.39 1.32 OSC10/ C4 52 2 0.1 0.25 500 500 57.9 57.9 30.0 32.8 78.2 78.2 1.93 1.76 54.4 106.4 1.41 1.36
Bul. Inst. Polit. Iaşi, t. LVI (LX), f. 2, 2010 69 Table 6 The influence of main cutting speed Cut material/ Tool´s type σo [daN/ mm 2 ] t [mm] s [mm/ rev] v [m/ min] Cd Fz [daN] mz 85 2.62 60 1.43 OL44/ Co 29 2 0.1 115 2.57 55 1.38 165 2.50 52 1.37 80 2-35 68 1.19 OSC10/ Co 52 2 0.1 122.5 2.26 63 1.21 164 2.20 61 1.24 87 1.67 30 1.72 MoCM14/ Co 74 1 0.1 120 1.52 27 2.08 160 1.48 25 2.09 80 1.90 65 1.21 40C10/ C3 78 2 0.1 102 1.86 63 1.24 Constant parameters: 150 1.80 58 1.22 K=70°; α=10°; γ=0°; λ=0°; wear hα=0; cutting in air For the most ductile steel type (OL44) and the most resistant one (40C10), the experimental results regarding the influences of the constructive angles, cutting feed and main cutting speed are illustrated in the diagrams in Figs. 1-4. OL44 λ=0° s=0.1 mm/rev Fig.1a – The influence of angle γ for OL44 steel.
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BULETINUL INSTITUTULUI POLITEHNIC D
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