Yuhuan CNC Machine Tool Co., Ltd.
Traditional car
1. Gasket
● Processing technology
Stamping ➤ Coarse grinding ➤ Leveling ➤ Medium grinding ➤ Quenching ➤ Fine grinding ➤ Deburring
| Thickness (mm) | Diameter (mm) | Plane (mm) | Parallel (mm) | Dimensions (mm) | Allowance (mm) | Hardness (mm) | Material | Grinding wheel | Roughness |
| 0.55-3 | 45-99 | 0.01 | 0.01 | ±0.005 | 0.03-0.2 | 30-50 | 65Mn\dc01 | Fine grinding CBN | Ra0.6 |
● Double end grinding solution
The differential gasket needs to be finely ground with 580B after medium grinding and quenching (note: before and after quenching according to the requirements of the OEM)
YHDM580B CBN grinding wheel = car adjusting shim
2. Transmission gear
"As shown in the experimental proofing, this product can be fully automatic loading and unloading processing according to customer needs"
● Gear double-sided grinding process
Forging, normalizing, turning, rolling, gear shaving, heat treatment, grinding (reducing the tolerance of shape and position)
| Thickness (mm) | Diameter (mm) | Plane (mm) | Parallel (mm) | Dimensions (mm) | Allowance (mm) | Hardness (mm) | Material | Grinding wheel | Roughness |
| 0.55-3 | 45-99 | 0.01 | 0.01 | ±0.005 | 0.03-0.2 | 30-50 | 65Mn\dc01 | Fine grinding CBN | Ra0.6 |
● Grinding solutions
Thickness higher than 8mm:300/580B-5/77 series planetary oscillating mill grinds once; Thickness less than 8mm: Select 580 and 750 C type multiple grinding according to diameter size; Single-sided grinding: recommend 7418
3. Brake disc
Workpiece material: aluminum matrix composite material
Processing technology: double-sided grinding
Processing requirements: flatness Ra0.025
Applicable equipment: YHDM750/3 high-precision vertical double-end grinding machine
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4. Connecting rod
Workpiece size: long250mm, 28.4mm thick
Workpiece material:45Cr steel
Rockwell hardness:32-36
Amount removed:0.8mm
Processing equipment:YHDM750A high-precision vertical double-end grinding machine
Processing method: swing grinding
Processing technology: double-sided grinding thinning
Processing efficiency:30 s (15 s/pc)
Flatness after processing/Parallelism: ≤ 0.02mm
surface roughness after processing:≤ 0.5 Ra
5. Piston ring
Workpiece size: diameter120mm, thickness 1.8mm, hardness 95- 106 HRB
Workpiece material: gray cast iron
Amount removed:0.12-0.13mm, the first removal is 0.085mm, the second removal is 0.035-0.045mm
Processing equipment:YHDM750A high-precision vertical double-end grinding machine
Processing technology: double-sided grinding thinning
Processing efficiency:0.6s /pc，6000 pc/hour
Size control:±0.005 mm
Flatness after processing/Parallelism: 0.004mm
surface roughness after processing:0.25 µm Ra
6. Large retaining ring
"As shown in the experimental proofing, this product can be fully automatic loading and unloading processing according to customer needs"
Workpiece size: diameter110mm
Grinding size requirements:3.300mm±0.012
Processing technology: double-sided grinding thinning
Processing equipment:YHDM750 high-precision vertical double-end grinding machine
7. Stator Rotor
Workpiece material: powder metallurgy
Processing technology: double-sided grinding thinning
Processing equipment:YH2M8470 high speed double-sided precision grinding machine
surface roughness after processing:≤ Ra 0.5
Processing efficiency:0.6 s/pc
Flatness after processing/Parallelism: ≤ 0.002mm
Amount removed:150-200um
Thickness control:≤ 3um
8. Bearing
"As shown in the experimental proofing, this product can be fully automatic loading and unloading processing according to customer needs"
Workpiece material: bearing steel
Processing technology: double-sided grinding thinning
Processing equipment:YHDM580B high-precision vertical double-end grinding machine
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Contact Information
400 national customer service hotline:400-8320220,400-6251288
E-mail：lyw@yh-cn.com
Telephone:86-731-83160688,0731-83201588(domestic);
Telephone:86-731-81868967, 86-18774862105(International);
Contact: Miss Zhou/Mr. Wen
Address: No.9 Yongyang Road, Liuyang Economic and Technological Development Zone, Changsha City, Hunan Province