Njira yodziwika bwino yopangira ma pistoni a aluminiyamu ndi njira yoponyera mphamvu yokoka yachitsulo. Makamaka, zisankho zachitsulo zamakono zayamba kukonzedwa ndi zida zamakina a CNC, zomwe zimatha kutsimikizira kukula kopanda kanthu kulondola, zokolola zambiri komanso mtengo wotsika. Kwa pisitoni yovuta, pachimake chachitsulo chikhoza kugawidwa mu zidutswa zitatu, zisanu kapena zisanu ndi ziwiri kuti zipangidwe, zomwe zimakhala zovuta komanso zosakhalitsa. Njira yokoka yokoka iyi nthawi zina imatulutsa zolakwika monga ming'alu yotentha, ma pores, mapini, komanso kumasuka kwa pistoni yopanda kanthu.

Mu injini zolimbitsidwa, ma pistoni opangidwa ndi aluminiyamu aloyi angagwiritsidwe ntchito, omwe ali ndi mbewu zoyengedwa, kugawa bwino kwachitsulo, mphamvu yayikulu, kapangidwe kazitsulo zabwino komanso kuwongolera kwamafuta. Chifukwa chake kutentha kwa pisitoni ndikotsika kuposa kuponya kwamphamvu yokoka. Pistoni imakhala ndi kutalika kwakukulu komanso kulimba kwabwino, komwe kumapindulitsa kuchepetsa kupsinjika. Komabe, ma hypereutectic aluminium-silicon alloys okhala ndi silicon yopitilira 18% siwoyenera kupangira chifukwa cha kulimba kwawo, ndipo kupanga kumayambitsa kupsinjika kwakukulu kotsalira mu pisitoni. Choncho, njira yopangira, makamaka kutentha komaliza ndi kutentha kwa kutentha kwa kutentha kuyenera kukhala koyenera, ndipo ming'alu yambiri ya pistoni yopangidwira panthawi yogwiritsidwa ntchito imayambitsidwa ndi kupsinjika kotsalira. Forging ili ndi zofunika kwambiri pamawonekedwe a pistoni komanso mtengo wokwera.

Njira yopangira madzi yamadzimadzi idayamba kugwiritsidwa ntchito popanga kuzungulira Nkhondo Yachiwiri Yapadziko Lonse, ndipo yalimbikitsidwa ndikugwiritsidwa ntchito mosiyanasiyana m'maiko osiyanasiyana padziko lonse lapansi. Zakhala zikukula mofulumira m'zaka khumi zapitazi. dziko langa linayamba kugwiritsa ntchito njirayi mu 1958 ndipo lili ndi mbiri ya zaka 40.

Liquid kufa forging ndi kutsanulira ena kuchuluka kwa madzi zitsulo mu nkhungu zitsulo, pressurize ndi nkhonya, kuti madzi zitsulo amadzaza patsekeke pa m'munsi kwambiri liwiro kuposa kufa kuponyera, ndi crystallizes ndi solidifies pansi mavuto kupeza wandiweyani. kapangidwe. Zamgulu popanda shrinkage patsekeke, shrinkage porosity ndi kuponyera zina zolakwika. Njirayi ili ndi mawonekedwe a kuponyera ndi kufota.