The mass production of high quality, technical products through extrusion enables a cost-effective, material and time saving production at the same time as increasing the precision of the process.
Procedurally speaking extrusion involves a pressure forming metallic construction unit. Work materials of steel, aluminium, light metals and non-ferrous metals, as well as alloys allow through this method measuers of plastic to be deformed and yielded into the desired shape.
With extrusion a blank is carried under high pressure and pressed in a mould. The opening of the mould acts to shape the blank, whereby full bodies, as well as hollow construction pieces such as shells and tubes can be produced.
The extrusion process is classified by the finishing temperature into cold extrusion, half-warm extrusion and warm extrusion. In regards to the flow direction of the materials in the instrument, they are referred to as backward extrusion, forward extrusion and lateral extrusion.
Areas of application and examples of use
Extrusion can be found worldwide in a large variety of technology and industrial sectors, for example:
- Filter houses, covering caps, cylinder tubes and spring housing in the automobile industry
- Switch housing, battery cases and plug-in sleeves in the electronics industry
- Motor housing, pump casings and winding spools in the engineering sector
- Eyepieces, beakers and stress rings for optical and metrological purposes
- Injection tubes and suction cups for medical engineering
- Blasting tubes, HE container and sabot for military technology and pyrotechnics
Further information and equitment for impressment can be found under pressing accessories.