Rapid prototyping in 4140 alloy steel is used when testing heat treatment response, through-hardenability, or mechanical properties representative of production.
| Parameter | Value |
|---|---|
| Achievable Tolerances | ±0.02 mm (prototype standard) |
| Surface Finish | Ra 1.6-3.2 μm |
| Cutting Speed | 80-150 m/min |
| Feed Rate | 0.06-0.12 mm/tooth |
| Tooling Recommendations | Standard carbide. |
Machine in annealed condition for fastest turnaround
Heat treatment can be done post-machining
Standard tolerances — heat treatment may cause distortion
Gear prototypes
Shaft test articles
Heat treatment validation parts
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