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    ZCCCT Tools Application in Butterfly Valves Machining

    Date:2020/04/10

    Butterfly valve, also called the flap valve, is a valve with a disc (clackor plate) as stopping component, revolving around the axis to the effect ofopening and closing. Butterfly valve is a kind of regulator with simplestructure. It mainly plays the role of block off and throttling in the pipeline,also can be used for switch control in low pressure pipeline medium

    Butterfly valve consists of  body, disc, seat and stem.

    The valve body material basically include: gray cast iron, ductile iron,carbon steel. 

    MaterialHT200

    hardnessHB260


    Machining techniques of valve body

    Facing and external turning

    Center hole machining

    Drilling and waist-shaped grooving

    Push rod hole machining

    Machining of small holes in push rod hole surface


    1.  Facing and external turning


    R type shown

    Rough turning end face and exterior

    Insert:YBD152/CNMG120408-PM

    Cutting data:V=160m/min; f=0.25mm/r; ap=1mm

    Finishturning end face and exterior

    Tool:PCLNL2525M12

    Insert:YBD052/CNMG120408-PM

    Cutting data:V=200m/min; f=0.15mm/r; ap=1mm


    End face groove turning



    Tool:QFGD2525LL13-130H

    Insert:YBG302/ZTGD0404-MG

    Cutting data:V=130m/min; f=0.1mm/r; ap=1mm


    1.  Center hole machining

    R type shown

    Turningcenter hole

    Tool:S32R-SCLCL12

    Insert:YBD152/CCMT120408-HM

    Cutting data:V=160m/min; f=0.25mm/r; ap=1mm

    Grooving

    Tool:SMP05-039*3.0-XP25-QC16-03

    Insert:YBG205/QC16L300-R02

    Cutting data:V=150m/min; f=0.15mm/r; ap=3mm

    1.  Drilling and waist-shaped groove millling

    Drilling:(Φ23 x 8


    Tool:ZTD03-230-XP25-SP07-02

    Insert:YBG205/SPGT07T308-PM

    YBG212/SPGT07T308-PM

    Cutting data:V=130m/min,f=0.08mm/r 


    Waist-shaped groove milling:(Φ24×40depth:20


    Tool:GM-2E-D20.0

    Cutting data:V=130m/min,f=0.15mm/r,ap=10mm,ae=20mm


    1.  Push rod hole machining

    Hole milling face:

    Tool:FMD02-063-A22-PN11-05

    Insert:YBD152/PNEG110512R-CR

    Cutting data:V=160m/min; f=0.25mm/r; ap=5mm

    Push rod drilling


    Tool:1101SC05-1550

    Cutting data:V=100m/min; f=0.1mm/r

    Push rod reaming

    Tool:compound dill D22.5-28.5-R2

    Cutting data:V=130m/min; f=0.1mm/r

    Push rod fine boring

    Tool:DGR4

    Insert:YNG151/TPGH090204L

    Cutting data:V=150m/min; f=0.05mm/r; ap=0.5mm

    Push rodhole thread milling


    Tool:4111—M10

    Cutting data:V=50m/min. f=0.08mm/r 

    1.  Machining of small holes in push rod holesurface

    Drilling

    Tool:1557SU03—M6

    Cutting data:V=70m/min; f=0.05mm/r; ap=16.5mm

    Tapping

    Tool:4202C—M6

    Cutting data:V=20m/min; f=1mm/r 



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