English to Italian Tech/Engineering Patents apparatus for producing a three-dimensional work piece which includes a heating system

Domanda semplice, ma non so se tradurre banalmente supporto oppure mettere vettore (e il termine ricorre spesso nel brevetto). Le due figure in cui viene illustrato il brevetto non aiutano a capire molto, anche se mi pare più un supporto (ha forma rettangolare, alla base dell'apparecchio).

Ecco il contesto:
The present invention relates to an apparatus for producing a three-dimensional work piece by irradiating layers of a raw material powder with electromagnetic or particle radiation.
Furthermore, the invention relates to a method for operating an apparatus of this kind.
Powder bed fusion is an additive layering process by which pulverulent, in particular metallic and/or ceramic raw materials can be processed to three-dimensional work pieces of complex shapes.
To that end, a raw material powder layer is applied onto a carrier and subjected to laser radiation in a site selective manner in dependence on the desired geometry of the work piece that is to be produced.
The laser radiation penetrating into the powder layer causes heating and consequently melting or sintering of the raw material powder particles

Grazie.