Общий каталог Tungaloy 2020 - 2021 - страница 1653

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GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingMiniature toolMilling cutterEndmillDrilling toolTooling SystemUser's GuideIndex User’s Guide - Technical Reference A Solid Carbide Endmills Regrinding procedures of solid carbide endmill B Check damage on cutting edge C A Flank wear B Crater wearat the peripheral cuttingat the rake faceedgeCBreakageChecking, if the tool hasenough length of cuttingedge as unused part.D Regrinding of peripheral Regrinding of peripheral Cutting off damaged part relief angle rake angle E Regrinding of end relief Grinding of end rake angle angle and end relief angle F z Regrinding of end relief angle 1. For using cup typediamond wheel Notice of regrindingRelief angle(1) If, after checking the damage of the cutting edge, thedamage is as case “A” or “B” of the flow chart, the toolmust be reground.G Use 400 to 600 meshdiamond wheel Too much damage of the cutting edge requires too much stock removal and thus reduces tool life. 2. For using straighttype diamond wheelgrindingαSetting angle ofgrinding wheelFormular of settingangle α(2) Please use diamond grinding wheel.(3) Peripheral relief angle must be ground between 18° andH10°.tan α = tan β x tan θ wheel β : peripheral relief angle Relief angle of small diameter cutters for aluminium θ : spiral angle machining must be a large degree. x Regrinding of peripheral rake angle (4) First check if “C” in flow chart can be adapted for the caseof coated endmill or not.IIf procedure “C” can be adapted for regrinding, tool life 1° ~ 3° after the grinding would be more improved than new one. The reason is remaining coated layer of cutting edge and shorter tool length will keep much higher rigidity of the toolthan before regrinding.J Cup type diamond wheel (5) Please check run out of peripheral cutting edge, face cutting edge, with Vee block after regrinding. c Regrinding of end rake angle (End gash) The value of the run out must be controlled within 0.01 30° ~ 45° For 2 flutes endmill:straight type diamondmm.wheelFor * 3 flutes endmill:Notice for regrinding of ball nose endmill K cup type diamond wheel - Regrinding of relief angle only is available. The dimension of nose radius will be smaller after grinding. 0° ~ 3°v Regrinding of end relief angle - Honing of cutting edge is necessary after regrinding. L Cup type diamond wheel γ : 1st end relief angle: 5° ~ 7° 2nd end relief angle: 15° ~ 20° M γ Tungaloy L065