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Engine Valve Seat Finish Grinding Machine

MOQ: 1 Pieces
Delivery time: 15 Day
High quality materials, sturdy and durable, fully upgraded, professional quality, Light weight, high strength, low cost, and good performance
Product Details

1. Processing range (the original state of the workpiece):

Workpiece status

Processing conditions

Remarks

Valve head diameter

MAX 50

 

Stem diameter

φ 512

 

Length

80300

 

Material quality

21-4N+4Cr10Si2Mo

 

Hardness

30—60HRc

 

Stem run-out

Within 0.005 , the stem part is clean without sundries

 

Angle

4560°

 

Valve head surface run-out

0.05

 

Machining allowance

0.10~0.20 (diameter)

 

2. Processing accuracy and cycle time:

Position

Accuracy

Test methods and tools

Run-out accuracy

Continuously process and measure 50 pieces within 0.02 mm.

Special measuring tool

Dimensional accuracy

Continuously process and measure 50 pieces within ± 0.01 mm.

Special measuring tool

Circularity

Continuously process and measure 50 pieces within 4.0 μ m.

Roundness measuring equipment

Surface roughness

Continuously process and measure 50 pieces within 0.5 μ m.

Roughness gauge

Cycle time

Take machining allowance 0.2mm as the standard - 8s/pc.