Dr. Bergfeld Schmiedetechnik: Facts, facts, facts
Technical competencies
- Drop forged technology
- Cold, semi-hot and hot forming process
- Precision forging
- Special surfaces
Raw materials
- All materials
- All steel grades
- Non-ferrous materials: Cobalt, nickel, brass, copper and aluminum
- All stainless, heat and acid-resistant materials
- Damask steel
Forging technology
Drop-forge technology
- Pressed parts
- Upsetted parts
- Hammer parts
- Safety parts subject to documentation
- Precision forgings: cold, semi-hot and hot forming process
Forming
Heat treatments
Normalising, annealing, hardening, solution ageing, precipitation hardening
Coating
KTL, phosphating, chromating
Precision forging
As a sole supplier we manufacture precision forging components for the automobile industry:
- Steering
- Gearing
- Brake and other safety-relevant areas
We guarantee:
- Roughness deep Rz25 for warm-forged parts
- Roughness deep Rz10 for cold-forged parts
- precision ± 0,04 of both of the forging dies, also toward one another
- Surfaces free of skin decarburization done in process
Surfaces
- Polished surface
- Brushed surface
- Chromating
- Galvanisation
- KTL coating
Machinery
Our machinery:
- Maxipresses with 500 up to 1,300 t extrusion load
- Friction presses up to 1,400 t extrusion load
- Horizontal forging machines with 40 up to 900 t extrusion load
- Hammers with 0.8 to 4.2 mt impact energy, equipped with the latest
laser control - Sizing presses with 60 up to 1,200 t extrusion load
