| Njira | Mutu Wozizira | Hot Forging |
| Processing Gulu | Mpaka 12.9 | Mpaka 12.9 |
| Makina | Wopangidwa mokwanira | Ayi |
| Kuchuluka kwa Kulamula Kwambiri | 1 tani | Palibe |
| Mtengo wa Ntchito | Zochepa | Wapamwamba |
| Kuchuluka kwa Ntchito | Kupanga kwakukulu | Kupanga magulu ang'onoang'ono |
Mutu wozizira umapangidwa ndi makina, kotero kuti chilemacho ndi chochepa, koma mphamvu ya mankhwala opangidwa ndi ozizira mutu akhoza kufika pazipita 10.9. Amayenera kuthandizidwa ndi kutentha kuti afike pamlingo wapamwamba kwambiri. Chithandizo cha kutentha chimangosintha ntchito ya mankhwala ndipo sichimakhudza mawonekedwe ake.
Makina oziziritsa mutu ozizira amakhala ndi kuyitanitsa kocheperako 1 tani, amene ali osachepera 30,000 mayunitsi.
Kutentha kokha kumaphatikizapo kutenthetsa zopangira ndikuziumba, kotero yomalizidwa ikhoza kukhala mpaka 12.9 mu mphamvu. Zopangira ma bolts otentha otentha, ogwira ntchito amayika pamanja zida zodulidwazo m'makina chimodzi ndi chimodzi. Ntchito yonseyo imamalizidwa pamanja, zomwe zingayambitse kusagwirizana kwa miyezo ndi nkhani zina.
Makina opangira zida zotentha alibe zofunikira zoyambira, koma ndalama zogwirira ntchito ndizokwera.
Panopa, pafupifupi palibe aliyense pamsika amasankha njira yowotchera yowotchera mwachindunji chifukwa chopanga misa, mtengo wonse wa kupangira kotentha ndi wapamwamba kuposa wa mutu wozizira. Kuphatikiza apo, pochiza kutentha, ma bawuti akumutu ozizira amathanso kukwaniritsa mphamvu zama bawuti otentha.
Komabe, pamene kuchuluka kwa kafukufuku wamakasitomala kuli kochepa ndipo zofunikira zowonekera sizokwera, njira yowotchera yotentha ingagwiritsidwe ntchito.
Nkhaniyi ikunena za kupanga zinthu monga ma hex bolt ndi socket head cap screws. Kupanga ma bolts amaso kumakhala ndi nkhungu zonse ndipo sizikumana ndi mavuto omwe ali pamwambapa.