Upfu metallurgy(PM) izwi rinobata nzira dzakawanda dzekuti zvinhu kana zvikamu zvinogadzirwa kubva muhupfu hwesimbi.PM maitiro anogona kudzivirira, kana kuderedza zvakanyanya, kukosha kwekushandisa masimbi ekubvisa maitiro, nekudaro kuderedza zvakanyanya kurasikirwa kwegoho mukugadzira uye kazhinji zvichikonzera kuderera kwemitengo.

Inoshandiswa zvakanyanya muindasitiri kune maturusi emhando dzakawanda uye pasi rose ~ 50,000 tonnes/gore (t/y) inogadzirwa naPM.Zvimwe zvinogadzirwa zvinosanganisira sintered filters, porous oil-impregnated bearings, magetsi anobatika uye maturusi edhaimani.

Kubva pakatanga kugadzirwa kwemaindasitiri-scale simbi poda-based additivemanufacturing (AM) mu2010s, yakasarudzika laser sintering uye mamwe masimbi AM maitiro ichikamu chitsva chekutengesa chakakosha simbi simbi kunyorera.

Iyo poda metallurgy press uye sinter process kazhinji ine matanho matatu akakosha: poda kusanganisa (pulverisation), kufa compaction, uye sintering.Compaction inowanzoitwa patembiricha yemumba, uye kukwirisa-tembiricha yekupisa kunowanzoitwa pamhepo yemhepo uye pasi pekunyatsodzorwa kwemamiriro ekunze.Sarudzo yechipiri kugadzirisa senge coining kana kupisa kurapwa kazhinji kunoteera kuwana yakakosha zvivakwa kana yakagadziridzwa chaiyo (kubva WIKIPEDIA)