Eight material families with their forging temperature windows, a five-stage process, and the press tonnage each part class needs. Reference data for engineers specifying hot forged parts.
Closed-die hot forging transforms heated metal into precision parts using shaped dies.
Raw material is cut to size and heated to forging temperature (750-1,280 C depending on material).
The heated billet is positioned in the first die cavity. A preliminary pressing distributes material roughly.
The pre-formed workpiece moves to the finish cavity. Full press tonnage forms the part.
The flash is trimmed off. The forging is cooled per material specifications.
Heat treatment, shot blasting, CNC machining, and NDT inspection. Certified dimensional report provided.
Eight material families with forging temperature ranges and typical applications.
| Material Type | Common Grades | Forging Temp | Typical Applications |
|---|---|---|---|
| undefined | Q235, 20# | 1,250-1,280 C | undefined |
| undefined | 45# | 1,180-1,220 C | undefined |
| Alloy Steel | 40Cr, 42CrMo | 1,150-1,200 C | undefined |
| Stainless Steel | 304, 316 | 1,100-1,150 C | undefined |
| Aluminum | 6061, 7075 | 420-480 C | undefined |
| Titanium | Ti-6Al-4V | 920-980 C | undefined |
| Nickel Alloys | Inconel 718 | 1,100-1,150 C | undefined |
| undefined | H62, CW602N | 750-850 C | undefined |
Essential engineering parameters that determine forging quality and equipment selection.
| Parameter | Typical Value |
|---|---|
| Forging Temperature Range | 750-1,280 C (by material) |
| Die Preheating | 150-400 C |
| Heating Rate (steel) | 6-12 C/min |
| Soaking Time | D x 0.6-1.0 min/mm |
| Cooling After Forging | Air, pit, or furnace |
| Parameter | Typical Value |
|---|---|
| Forging Ratio | 1.5-6.0 |
| Strain Rate (press) | 1-10 s-1 |
| Reduction per pass | 10-50% |
| Flow Stress (42CrMo, 1150 C) | ~90 MPa |
| Peak Load Estimate | sigma x A x K / 9,806 t |
Match the press to your part. Rule: press capacity = peak forging load × 1.25.
| Model | Capacity | Stroke | Speed | Motor | Energy |
|---|---|---|---|---|---|
| HKM3-1000 | 1,000 T | 340 mm | 35 spm | 75 kW | 60 kJ |
| HKM3-1600 | 1,600 T | 350 mm | 30 spm | 110 kW | 80 kJ |
| HKM3-2500 | 2,500 T | 400 mm | 25 spm | 160 kW | 120 kJ |
| HKM3-4000 | 4,000 T | 450 mm | 20 spm | 250 kW | 180 kJ |
Custom configurations available. Contact us for a recommendation tailored to your application.
Common technical questions from procurement professionals and engineers.
Peak load (tons) = Flow stress x projected area x shape factor / 9,806. For best results we run a complimentary DEFORM 3D simulation on your part drawing.
MOQ is flexible: from 10 pieces for prototyping up to 100,000+ for mass production. Tooling design and samples are included in the first order.
As-forged: +/-0.5 to +/-1.5 mm typically. With precision tooling and process control: +/-0.2 mm on critical dimensions achievable.
Die design determines material flow, grain structure, and dimensional accuracy. We validate all die designs with DEFORM 3D simulation before cutting steel.
Hot forging (above recrystallization) allows more deformation per step and complex shapes. Cold forging gives better surface finish but limited shape complexity.
Toggle presses (our HKM3 series) maintain ram parallelism within +/-0.05mm under eccentric loads — ideal for multi-cavity dies and complex forgings.
Send us your drawing for a technical assessment and press recommendation.
Include material grade, annual volume, and critical tolerances.