Engine Valve Groove Grinding Machine
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 |
Within MAX 50㎜ |
|
|
Stem diameter |
φ 5～12㎜ |
|
|
Length |
80～250㎜ |
|
|
Material quality |
From 21 – 4N to 4Cr10Si2Mo |
|
|
Hardness |
30—60HRc |
|
|
Stem run-out |
0.01㎜ |
|
|
Valve head surface run-out |
0.1㎜ |
|
|
Machining allowance |
0~2.0㎜ (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 ± 0.015 mm. |
Point micrometer |
|
Surface roughness |
Continuously process and measure 50 pieces within Ra 0.8 μ m. |
Roughness gauge |
|
Cycle time |
Take machining allowance 1.0mm as the standard - 7s/pc. |
|
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