1. ʻAʻohe ʻaoʻao hewa ʻole o nā ʻaoʻao hewa ma mua o ka waiwai i kuhikuhi ʻia. ʻO ka maʻamau, ʻoi aku ka nui o nā kihi hewa ma mua o 8% o ka mānoanoa pā, a ʻaʻole i ʻoi aku ka nui ma mua o 1.5mm.

2. No ka hōʻoia ʻana i ka weld i kahi hohonu komo kūpono a me ka nui o ka deposition, pono e hōʻoia ʻaʻole ia e haki a wela paha ma hope o ka hoʻopili ʻana, a he mea pono hoʻi e hoʻomalu i ke kiʻekiʻe o ka weld i hiki i ke kiʻekiʻe weld o ʻaʻole e pili ka weld waho.

3. Hoʻomau a hoʻohālikelike ʻia ka pahu kuʻi ʻana e hōʻoia i ka hoʻopili ʻana i waho ma hope.

4. ʻAʻole i loaʻa nā hemahema o ka welding e like me ka welding deviation, pores, māwae, slag inclusion, burn-through and back welding, a ʻo ke kikowaena kikowaena mai ka welding seam e koi ʻia e ≤1mm.

5. ʻAʻole ʻaʻa arc, pākī liʻiliʻi, ʻaʻohe hopena i ka bevel a me ka ʻili o ka hopena paipu.

6. Hoʻohālikelike ʻia ka wili wili me ka metala kumu, a ʻo nā ʻano kino a me nā waiwai kemika o ka metala wili wili e kūpono i nā koi.