Kupanga--Kupanga chitsulo ndi pulasitiki - kumapanga zida ndi njira zambirimbiri. Kudziwa zosiyanasiyanakugwira ntchitondipo mawonekedwe achitsulo omwe amatuluka chilichonse amapangidwa ndi chofunikira pakumvetsetsa kapangidwe kake.
Hammer ndi Press Forging
Nthawi zambiri, zida zopangidwira zimapangidwa ndi nyundo kapena makina osindikizira. Kupanga pa nyundo kumachitika motsatizana zakufa pogwiritsa ntchito nkhonya mobwerezabwereza. Ubwino wa kupanga, ndi chuma ndi zokolola za nyundo zimatengera zida ndi luso la woyendetsa. Kubwera kwa nyundo zokonzedwanso kwapangitsa kuti ogwiritsira ntchito asadalire pang'ono komanso kusinthasintha kwa njira. Muzosindikizira, katunduyo nthawi zambiri amagunda kamodzi kokha pazithunzi zilizonse zakufa, ndipo mapangidwe a chithunzi chilichonse amakhala ofunika kwambiri pamene luso la ogwiritsira ntchito silili lofunika kwambiri.