Eyona ndlela ixhaphakileyo yokuvelisa izikhewu zepiston yealuminiyam yindlela yokuphosa umxhuzulane wesinyithi. Ngokukodwa, i-molds yensimbi yangoku sele iqalile ukuqhutyelwa yi-CNC izixhobo zomatshini, ezinokuqinisekisa ukuchaneka kobukhulu obungenanto, ukuveliswa okuphezulu kunye neendleko eziphantsi. Kwi-piston cavity eyinkimbinkimbi, i-core metal inokwahlulwa ibe ngamacandelo amathathu, amahlanu okanye asixhenxe ukubumba, into eyinkimbinkimbi kwaye ingenako ixesha elide. Le ndlela yokuphosa umxhuzulane ngamanye amaxesha ivelisa iziphene ezinje ngokuqhekeka okushushu, iipores, imingxunya, kunye nokukhululeka kwepiston engenanto.

Kwii-injini ezomeleziweyo, iipiston ze-aluminium ezenziwe nge-alloy zingasetyenziselwa, ezineenkozo ezicolisisiweyo, ukuhanjiswa okulungileyo kwesinyithi, amandla aphezulu, isakhiwo sesinyithi esihle kunye nokuhamba kakuhle kwe-thermal. Ke iqondo lobushushu bepiston lisezantsi kunolo lokuphosa umxhuzulane. Ipiston inobude obuphezulu kunye nokuqina okuhle, okuluncedo ekunciphiseni uxinzelelo. Nangona kunjalo, i-hypereutectic aluminiyam-silicon alloys equlethe ngaphezu kwe-18% ye-silicon ayifanelekanga ukwenza ngenxa yobunzima bayo, kwaye ukukhwabanisa kubangele uxinzelelo olukhulu olushiyekileyo kwipiston. Ngoko ke, inkqubo yokubumba, ngokukodwa ubushushu bokugqibela bokubumba kunye nobushushu bokunyanga ukushisa kufuneka bufaneleke, kwaye uninzi lweentanda kwipiston edibeneyo ngexesha lokusetyenziswa lubangelwa uxinzelelo oluseleyo. I-Forging ineemfuno ezingqongqo kwimilo yesakhiwo sepiston kunye neendleko eziphezulu.

Inkqubo yokwenziwa kolwelo yaqala ukusetyenziswa kwimveliso malunga neMfazwe yesiBini yeHlabathi, kwaye iye yakhuthazwa yaze yasetyenziswa kumaqondo ahlukeneyo kumazwe ahlukeneyo kwihlabathi jikelele. Ifikelele kuphuhliso olukhawulezileyo kule minyaka ilishumi idlulileyo. ilizwe lam laqala ukusebenzisa le nkqubo ngo-1958 kwaye linembali yeminyaka engama-40.

Ulwelo die forging kukugalela isixa esithile sesinyithi engamanzi ibe ngundo lwesinyithi, pressurize nge punch, ukuze isinyithi elulwelo izalise umngxuma ngesantya esisezantsi kakhulu kunokuba kufa, kwaye crystallizes kwaye luqina phantsi koxinzelelo ukufumana axineneyo. isakhiwo. Iimveliso ezingenazo i-shrinkage cavity, i-shrinkage porosity kunye nezinye iziphene zokuphosa. Le nkqubo ineempawu zombini zokuphosa kunye nokukhwabanisa.