Extrusion is a manufacturing method where long lengths of the same cross section can be produced quickly and repeatedly.
It can be a highly economical method of manufacture even when some post machining is required to add fixing points, threads or access panels.
Whilst there is tooling involved, it is not in the same league as injection mould tooling, being simpler to manufacture and lower cost, and so we are able to produce low volume quantities of parts extruded in short lead times and at relatively low cost.
Prototyping short batches can be an issue however, as extruders are loath to set up for small batch work, especially in unusual materials. To circumvent this there is frequently a setup charge or the job is costed on a time basis, both of which can make short runs expensive.
However there are ways around this!
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