Preliminary Study on the Capability of the Novel Near Solidus Forming (NSF) Technology to Manufacture Complex Steel Components
Abstract
:1. Introduction
2. Materials and Methods
2.1. Geometry
2.2. Material
2.3. NSF Cell
2.4. NSF Process
2.4.1. Initial Preparations
2.4.2. Heating of the Billet
2.4.3. Transfer Stage
2.4.4. Deformation Stage
2.4.5. Component Ejection
2.5. Microstructural Analysis
2.6. Experimental Sequence
3. Results and Discussion
3.1. Component Manufacturing
3.2. Microstructural Evaluation
4. Conclusions
- Thicknesses below 3 mm can be achieved using the 42CrMo4 medium carbon alloy.
- Long distances perpendicular to the forming direction can be successfully filled.
- The material can fill negative cross-sections (from smaller to bigger cross-sections).
- The process enables the closure of defects such as folds and pores.
- The NSF process generates strain vectors in a single deformation that are otherwise difficult to attain via conventional forging routes.
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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C | Mn | Si | P | S | Cr | Ni | Mo |
---|---|---|---|---|---|---|---|
0.42 | 0.80 | 0.25 | 0.011 | 0.024 | 1.08 | 0.10 | 0.21 |
Billet T (°C) | Billet Size (mm) | Die T (°C) | Argon (dm3/min) | Heating Cycle (Pulses/Heating Time) | Lubricant | |
---|---|---|---|---|---|---|
Trial 1 | 1360 | ø70 × 90 | 270 | 14–20 | 4/230″ | CeraSpray® |
Trial 2 | 1390 | 5/258″ | ||||
Trial 3 | ø75 × 79 | |||||
Trial 4 | ø85 × 61 |
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Plata, G.; Lozares, J.; Sánchez, A.; Hurtado, I.; Slater, C. Preliminary Study on the Capability of the Novel Near Solidus Forming (NSF) Technology to Manufacture Complex Steel Components. Materials 2020, 13, 4682. https://doi.org/10.3390/ma13204682
Plata G, Lozares J, Sánchez A, Hurtado I, Slater C. Preliminary Study on the Capability of the Novel Near Solidus Forming (NSF) Technology to Manufacture Complex Steel Components. Materials. 2020; 13(20):4682. https://doi.org/10.3390/ma13204682
Chicago/Turabian StylePlata, Gorka, Jokin Lozares, Andrea Sánchez, Iñaki Hurtado, and Carl Slater. 2020. "Preliminary Study on the Capability of the Novel Near Solidus Forming (NSF) Technology to Manufacture Complex Steel Components" Materials 13, no. 20: 4682. https://doi.org/10.3390/ma13204682