303 Каталог HOFFMANN GROUP 2016 Станочный режущий и вспомогательный инструмент Вер. 47 Стр.303

Каталог HOFFMANN GROUP 2016 Режущий инструмент и оснастка Стр. 303 0303 ENG Lab2u

Hoffmann Group 47 Solid carbide I'vMvfl Standard Type H 0 -0.02 j&JGaiant‘ mm. Solid carbide micro slot drill p ae0fl5xD Til GARANT Diabolo 70: Special solid carbide substrate with extremely high tensile strength combined with outstanding wear resistance for optimum process reliability. Newly developed nano-crystalline high-tech coating for hard milling up to 70 HRC. Very suitable for continuous use in tool and mould making. Recess angle a = 12°. Tolerances: Size nominal 0:D(=O/-0.02 mm. Application: Due to the special hard geometry ideal for use on hardened materials from 60 HRC to 70 HRC. Note: Correction factor for vc depending on dimension L4 E0fzfor ap = 0.05xD. CBf.for a =0.1xD. Groundrecess 201643 Suitable for/ Alu v, m/min +2L Alu cast < ss >io si X < 500 N X < 750 N X X <900N < 1100 N X < 1400 N X <55 HRC X <60 HRC X <65 HRC X <67 HRC X <70 HRC IN0X <900N IN0X >900N Ti >850N Graphite GRP CRP Uni 4 I 4k ISO code N P H r N”i I 201643 72 55 45 40 O o 0 DcxL4 201643 Solid carbide micro slot drill ‘ \ ts 0D. Correction factor for v. f, f, mm TiAIN mm 0,2x0,6 87.32 0.3 0.6 0.17 45 4 0.002 0.0025 0.95 0,2x1 94.25 0.3 1 0.17 45 4 0.0018 0.0023 0.9 0,3x2 95.63 0.5 2 0.27 45 4 0.0022 0.0027 0.9 0/4x2 58.81 0.6 2 0.36 45 4 0.0023 0.0029 0.9 0,5x2 56.23 0.8 2 0.46 45 4 0.003 0.0038 0.95 0,5x4 56.23 0.8 4 0.46 45 4 0.0023 0.0029 0.77 0,5x6 57.62 0.8 6 0.46 45 4 0.0017 0.0021 0.54 0,6x4 64.75 0.9 4 0.56 45 4 0.0034 0.0042 0.9 0,8x4 62.77 1.2 4 0.76 45 4 0.005 0.0062 1 1X4 62.77 1.5 4 0.94 50 4 0.0054 0.0068 0.95 1x6 62.77 1.5 6 0.94 50 4 0.0049 0.0061 0.86 1x8 62.77 1.5 8 0.94 50 4 0.0042 0.0052 0.77 1x10 62.77 1.5 10 0.94 50 4 0.0037 0.0047 0.69 1x12 67.91 1.5 12 0.94 50 4 0.0034 0.0042 0.62 1,5x6 62.77 2.3 6 1.44 50 4 0.009 0.0113 0.95 1,5x10 62.77 2.3 10 1.44 50 4 0.0073 0.0091 0.81 1,5x12 62.77 2.3 12 1.44 50 4 0.0065 0.0082 0.73 2x6 62.77 3 6 1.9 50 4 0.0105 0.0131 0.95 2x12 62.77 3 12 1.9 50 4 0.0076 0.0095 0.73 2x20 62.77 3 20 1.9 60 4 0.0047 0.0059 0.48 /bGarant Hard milling up to 70 HRC Extreme stresses on cutting tools. Comparison of Rockwell (HRC) and Vickers (HV) The extreme increase in hardness is made clear by comparing the values based on the two procedures. 10 hardness steps on the HRC scale correspond to a comparable increase in Vickers value of almost 40% (61 HRC = 720 HV/ 70 HRC = 1000 HV). That means that even an increase in hardness such as for instance from 67 HRC to 69 HRC creates significantly more stress on the cutting tool. (HRC) 71.0 70.0 69.0 68.0 67.0 66.0 65.0 64.0 63,0 (HV) 800 1000 1200 303