1. No ka ikaika kiʻekiʻe o ka pauda metallurgy gear huahana, pono ke kiʻekiʻe kiʻekiʻe a hāpai i ke kaʻina hana o ka "paʻi - pre-firing - refiring - wela wela".

2. Hiki i ka ha'aha'a kalapona ke hō'oia i ka huahana he ki'eki'e ka pa'akikī o ka ili a me ke kū'ē'ana i ka wā wela, a'o ka ha'aha'a kalapona i loko o ke kumu e ho'oikaika maika'i ai ka huahana.

3. ʻO ka hoʻohui ʻana i ka 2% -3% Ni a me 2% Cu i ka mea hiki ke hoʻomaikaʻi nui i ka makemake a me ka ikaika hopena o ka mea ma hope o ka sintering.

4. Ke hoʻohālikelikeʻia me ka carburizing a me ka hoʻopauʻana, hiki i ka carbonitriding ke kūpaʻa maikaʻi, aʻo ka haʻahaʻa haʻahaʻa carbonitriding e hōʻoia i ka ikaika o ke kumu o ka'āpana a ho'ēmi i ka deformation quenching o ka hapa.

ʻO nā ʻāpana metallurgy pauka, e like me nā ʻāpana metallurgy pauka i hoʻohana mau ʻia i nā ʻenekini kaʻa, hiki ke hoʻokō piha i nā koi o ka pololei o ka mīkini a hoʻomaikaʻi maikaʻi i ka hana ʻana ma o ke kaʻina hana hoʻokahi a me ka hoʻopau ʻana me ka ʻole o ka hana hope.