Hot forging press Smeral LZK 4000 A — 4000 ton
Smeral LZK 4000 A hot forging press - description
Technical specifications Smeral LZK 4000 A (ID:S85971)
| Type | Hot forging press |
|---|---|
| Manufacturer | Smeral |
| Model | LZK 4000 A |
| Year of manufacture | 1985 |
| Year of overhaul | 2003 |
| Capacity | 4000 ton |
| Ram stroke | 380 mm |
| SPM | 60 |
| Width between uprights | 1580 mm |
| Shut height | 1000 mm |
| Ram adjustment | 20 mm |
| Table size | 1520 X 1600 mm |
| Slide size | 1470 X 1400 mm |
| Stroke of upper ejector | 50 mm |
| Ejecting force of upper ejector | 105 kN |
| Stroke of lower ejector | 80 mm |
| Ejecting force of lower ejector | 140 kN |
| Press height above floor | 8100 mm |
| Press dimension | |
| — Hegith | 9150 mm |
| — Width | 4720 mm |
| — Length | 4640 mm |
| Main drive motor output | 200 kW |
| Press weight | 250 ton |
Hot forging press Smeral - technological processes and operations
| Forging | The process of plastic deformation of metal, in which the workpiece changes shape under the impact of blows or static pressure. During forging, the metal structure is densified, internal inhomogeneities are eliminated, and the mechanical properties of the material are improved. As a result, forged products are distinguished by high strength and reliability when operating under significant loads. Forging is used both for producing finished parts and for preparing workpieces for subsequent stamping. |
|---|---|
| Hot forging | Hot forging is a process of shaping metal under pressure at elevated temperatures. Heating reduces the deformation resistance of the material, allowing it to flow more easily into the die cavity. The process provides high productivity and the ability to form complex shapes. Used for manufacturing forgings from steel and alloys in series and mass production. |
| Closed-die forging | The workpiece is deformed inside a die cavity that restricts metal flow, forcing it to fill the exact shape of the tool. Under high pressure, the material spreads into every recess and detail of the die, producing a part with precise geometry. This method provides high accuracy and repeatability, making it the standard for series and mass production of complex forgings. |
| Preforming | Preforming prepares the workpiece for the main stamping operation by giving it an approximate shape of the future part. The metal is distributed in the die to facilitate final filling and reduce tool wear. This intermediate step improves accuracy and quality of the finished product. |
| Piercing | Piercing forms a hole in a solid workpiece by driving a tool through the material without removing it. The metal is displaced sideways, creating a through or blind opening while preserving the structure around it. The operation is performed on presses and is used in the production of hollow parts such as bushings, rings, and shafts. |