MIM Surgical Handle Frame – SUS 17-4PH
Technical Specifications
Material: SUS 17-4PH
Dimensions: 124.11 × 56.4 × 7.8 mm / 119.59 × 55 × 7.8 mm
Weight: Custom per drawing
Surface Finish: As-sintered
Hardness: ≥ HV260 (as sintered); ≥ HV300 after heat treatment
Dimensional Tolerance: ±0.5% of nominal dimensions (as per 2D drawing)
Process: MIM (Metal Injection Molding) + Sizing+ Heat Treatment
Application: Surgical Tool Handles / Medical Frame Structures / Precision Gripping Tools
This ergonomic frame was molded through MIM, then heat treated and sized to ensure mechanical strength and dimensional stability. It is designed to withstand repeated manual use in surgical or medical tool assemblies.
Material Properties – SUS 17- 4PH
Chemical Composition (%):
C ≤ 0.07 | Cr 15–17.5 | Ni 3–5 | Cu 3–5 | 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 | ≥ 660 MPa | ≥ 950 MPa |
| UTS | ≥ 950 MPa | ≥ 1100 MPa |
| Elongation | ≥ 3% | ≥ 5% |
| Hardness | ≥ HV260 | ≥ HV300 |
Manufacturing Process Overview
The component is produced through MIM, followed by debinding, sintering, sizing, and heat treatment. Surface remains as-sintered for functional consistency, without additional coating or polishing.
Injection Molding → Debinding → Sintering → Sizing → Heat Treatment → Final Inspection
Applications
- Surgical Instrument Handles
- Medical Clamp or Gripper Frames
- Manual Surgical Mechanisms
- Stainless Medical Assemblies
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