About This Service
Hot forging heats metal billets above their recrystallization temperature (1100-1200 degrees C for steel, 400-500 degrees C for aluminum) and forms them under high pressure in a die. The result: parts with 20-30% higher tensile strength than machined or cast equivalents, plus material utilization of 70-90% (vs 30-50% for CNC).
5 Forging Methods (Where Hot Forging Fits)
Hot forging is one of 5 forging methods. Pick the right one for your part size, tolerance, and volume.
Open Die Forging
Hammer or press with simple dies. Used for large parts (50-500 kg) and low volumes. Less precise but flexible. Examples: large shafts, rings, cylinders.
Closed Die Forging (Impression Die)
Hammer or press with shaped dies. Most common for medium parts (0.1-50 kg). High precision, repeatable. Examples: connecting rods, gears, flanges.
Hot Forging (Our Specialty)
Billet heated above recrystallization (1100-1200 degrees C steel, 400-500 degrees C aluminum). Superior strength from grain flow. Material utilization 70-90%. 0.1-50 kg parts. Most versatile.
Cold Forging (Cold Heading)
Room temperature forming. Best for small parts (under 5 kg). Excellent surface finish. Limited material formability. Examples: bolts, screws, fasteners.
Warm Forging
Heated below recrystallization (200-700 degrees C). Better formability than cold, less scale than hot. 0.1-20 kg parts. Examples: complex automotive components.
5 Steps of Our Hot Forging Process
Each step is critical for material flow, dimensional accuracy, and mechanical properties.
Billet Preparation and Cutting
Round or square billets cut to weight plus 5-10% allowance. Material grade verified by spectrometer. Weights 0.1-50 kg per piece. Scale and surface defects removed by pickling or shot blasting.
01
Heating to Forging Temperature
Gas or induction furnace. Steel 1100-1200 degrees C, aluminum 400-500 degrees C, brass 700-800 degrees C. Heating time 30-90 minutes. Uniform temperature is critical for material flow.
02
Forging in Press or Hammer
Hydraulic press (slow, deep filling) or mechanical hammer (fast, surface detail). Force 500-10,000 tons depending on part size. Cycle time 5-60 seconds per part. Multiple die stations for complex shapes.
03
Trimming, Piercing, and Coining
Trim excess flash with trim die. Pierce internal holes if needed. Coin critical surfaces for tolerance and surface finish. Some parts go through multiple forging + trimming operations.
04
Heat Treatment, Machining, Surface Treatment
Heat treatment: annealing, normalizing, quenching, or tempering to spec. CNC machining for critical features. Surface: shot blasting, phosphating, painting, plating, or black oxide.
05
Why Choose Our Hot Forging
20-30% Higher Strength
Forged parts have aligned grain flow following the part contour. 20-30% higher tensile strength than machined or cast equivalents. Better fatigue resistance.
70-90% Material Utilization
Near-net-shape forging uses 70-90% of billet. CNC machining wastes 50-70%. Less scrap, lower material cost, especially for expensive alloys like titanium and Inconel.
Cost-Effective at Volume
Tooling 10,000-50,000 USD amortized over 50,000-200,000 parts. Per-part cost drops 60-80% from 1,000 to 100,000 pieces. Tooling life 5-10 years.
Wide Material Range
Carbon steel, alloy steel, stainless steel, aluminum, brass, copper, titanium. We stock the most common grades. Special alloys quoted on request.
Compatible with Heat Treatment
Forged parts respond well to subsequent heat treatment. Annealing, normalizing, quenching, tempering. 30-50 HRC for wear parts, 200-300 HB for structural parts.
IATF 16949 Certified
Automotive-grade forging. PPAP documentation, control plans, full material traceability for every batch. Common in automotive Tier-1 supply chains.
Sample Products We Make
Click any product to inquire about a similar part for your application.
