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May 19, 2025

High Hardness Gear Chamfering Solutions for EV Reducers

20250519101228

Key processing challenges

Material: Special low-carbon high-alloy steel (15Cr14Co12Mo5Ni), hardness HRC62-65

Requirement: 0.3mm precision arc chamfering of tooth top circle/tooth root groove, directly affecting gear meshing noise control

Industry core pain points

1.Traditional CNC processing has the problem of carbide tool chipping (an average of 15 pieces are scrapped)

2.Manual chamfering causes abnormal noise in gear transmission, and the yield rate is less than 72%

3.Inefficient production of large quantities of gears, taking more than 90 minutes for a single piece

MID solutions technology matrix
Ultrasonic vibration five-axis center (40kHz frequency/20μm amplitude)
Supercritical CO2 deep cooling system (-78℃) inhibits work hardening
Patented nano-coated ball head milling cutter (life increased to 57 pieces)
MQL internal cooling technology reduces gear processing thermal deformatio
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Processing comparison

202505191011591

 

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