MIM Automotive Shaft Component – SUS 17-4PH
Technical Specifications
Material: SUS 17-4PH
Dimensions: 20.73 × 35.35 × 34.95 mm
Weight: 29.5 g
Surface Finish: As-sintered
Dimensional Tolerance: ±0.5% of nominal dimensions (as per 2D drawing)
Process: MIM (Metal Injection Molding) + CNC machining + Heat Treatment
Application: Automotive Actuation / Mechanical Assemblies
Material Properties – SUS 17-4PH
Chemical Composition (%):
C ≤ 0.07 | Cr 15.0–17.5 | Ni 3.0–5.0 | Cu 3.0–5.0 | Nb 0.15–0.45 | Mn ≤ 1 | Si ≤ 1 | Fe Balance
Mechanical Properties:
| Property | As Sintered | After Heat Treatment |
| Density | ≥ 7.6 g/cm³ | ≥ 7.6 g/cm³ |
| Yield Strength (RP₀.₂) | ≥ 660 MPa | ≥ 950 MPa |
| Ultimate Tensile Strength | ≥ 950 MPa | ≥ 1100 MPa |
| Elongation (A₁₀) | ≥ 3% | ≥ 5% |
| Hardness | ≥ HV260 | ≥ HV300 |
Manufacturing Process Overview
This shaft component is produced through MIM, followed by post-sinter sizing and CNC machining to ensure dimensional accuracy and mechanical strength for automotive assemblies.
Injection Molding → Debinding → Sintering → Sizing → Heat Treatment → CNC Machining → Inspection
Applications
- Automotive actuation systems
- High-torque mechanical linkages
- Drive and hear housing interfaces
- General purpose industrial equipment
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