ʻO ke kaʻina hana welded paipu pinepine, e pili ana i ka maikaʻi o nā mea i ʻoi aku ma mua o hoʻokahi paipu, nā kumu kumu nui, ʻenehana welding a me ka helu ʻōwili e hoʻomaka nei e hoʻoponopono.

Kiʻi e nānā i nā ana geometric maka. Hoʻopili ʻia ke ʻano geometry i ka maikaʻi o ka laula kila ke emi iho ma mua o ka ʻae ʻia ʻana, hoʻemi ʻia ke kaomi extrusion welded paipu kila, ʻaʻole ikaika ka hoʻoheheʻe ʻana o ka paipu, nā māwae a i ʻole ka hāmama. Ke ʻoi aku ka nui o ka laulā o ke kaula ma mua o ka hoʻomanawanui, hoʻonui ʻia ka ikaika paʻi i ka wā e ʻike ʻia ai ka paipu kila i hoʻopaʻa ʻia, nā wili paipu kila, ka nuku, ka wili a me nā hemahema a i ʻole nā ​​​​burrs. No laila, ʻaʻole pili wale ka laulā o ka ʻili i ka pololei o ke anawaena o waho o ka paipu kila, akā pili pū kekahi i ka maikaʻi o ka ʻili o ka paipu kila.
ʻO nā koi no ka ʻokoʻa mānoanoa o ka ʻāpana like ʻaʻole i ʻoi aku ma mua o ka waiwai i koho mua ʻia o ka paipu kila, ka mea e koi ai i kahi kiʻekiʻe o ke kūlike o ka mānoanoa o ka pā o ka paipu kila, nā fluctuations i ka mānoanoa o ke kaula, e hoʻoili ʻia ka leo like i ka pā. ʻO ka mānoanoa o ka waiwai i ʻae ʻia o ka ʻokoʻa ʻokoʻa ka mānoanoa o ka ʻāpana kila ma mua o ka ʻokoʻa i ʻoi aku ka nui o ka mānoanoa kila ma mua o ka ʻae ʻia ʻana a hoʻopaʻi ʻia i ka ʻōpala. ʻO ka fluctuations i ka mānoanoa o ka mānoanoa kila i hoʻopau ʻia e pili wale i ka pololei. I kēia manawa, no ka mea, ʻokoʻa ka mānoanoa o ka ʻili, ʻo ka paipu kila i ka wā wili, ke kaomi extrusion a me ka paʻa ʻole o ka wela o ka welding, ka hopena i ka weld weld maikaʻi ʻole o ke kila.

Eia kekahi, no ka loaʻa ʻana o nā hemahema o ke kila kila i loko, ʻo nā haumia, e like me ka trachoma, kahi mea nui e pili ana i ka maikaʻi o ke kila. No laila, ma mua o ka wili kila, e nānā i ka maikaʻi o ka ʻili o ka ʻōwili a me ka geometry o ka maikaʻi o ka strip i kūpono ʻole i nā kūlana, ʻaʻole i ka hana ʻana, i mea e pale aku ai i nā poho pono ʻole.