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Technical Development

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

: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

:YBD152/CCMT120408-HM

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

Grooving

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

: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

: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

: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

: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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