No ka mea ʻoi aku ka paʻakikī o ke ʻano o nā kaʻa ma mua o nā huahana mechanical maʻamau, paʻakikī ka hui ʻana a me ke kaʻina hana kuʻi, a nui ka nui o ka hana ʻana, ʻoi aku ka nui o ka hana ʻana o ke kino kaʻa he ʻoihana me nā noi ʻenehana kiʻekiʻe.ʻO ke kī nui e nā robots welding nui a me nā calculators.Kino kuʻihao hana laina i haku ʻia me ka holomualako wiliwili ʻakomi.   ʻO ka hapa nui o ke kino o ke kaʻa i haku ʻia me nā ʻāpana metala a me nā ʻāpana uhi, a me nā ʻāpana like ʻole i hana mua ʻia, e like me nā kia makani makani, nā kia puka, nā kaʻa o luna o ka puka, mua a me hope fenders, mua a me hope panels, luna uhi, etc. ua ʻākoakoa ʻia e ka welding a me ka riveting, a ʻo ka welding kahi mea pono ʻole i ka laina hui kaʻa.   I nā makahiki i hala iho nei, ua hoʻohana maoli nā mea hana kaʻa kaʻa nuilopako wiliwilinā laina kuʻi kino, a ua hōʻike kekahi o lākou i ka ikaika ʻenehana alakaʻi o ka honua.Ma waena o kēia mau robots, helu ʻia nā robots welding spot no ka hapa nui.No ka laʻana, e ʻoi aku ma mua o 60 mau lopako wiliwili wahi e holo ana ma ka hui kino-i-keʻokeʻo Jetta A2 a me ka laina hana hana maʻalahi i kahale hana wiliwilio FAW-Volkswagen Automobile Co., Ltd.   I nā makahiki i hala iho nei, ua hoʻololi mālie ka ʻenehana welding kino laser i ka ʻenehana welding wahi kūʻē, hiki ke hoʻokō pono i nā koi kūpono i ka hana ʻana o nā ʻāpana kaʻa.Ke hoʻohana nei i kēia ʻenehana hou, hiki ke hoʻemi ʻia ka laulā o ka ʻili ma waena o nā pilina mea hana, ʻaʻole ia e hōʻemi wale i ka noi no nā papa Hoʻonui pū i ka rigidity o ke kino.ʻO nā ʻāpana hoʻoheheʻe laser, ʻaʻohe deformation i nā ʻāpana wili o nā ʻāpana, ʻoi aku ka wikiwiki o ka welding, a ʻaʻohe pono no ka mālama wela post-weld.Loaʻa i ka wili laser ka mana maikaʻi e pili ana i ka maikaʻi o ka hana, ka hoʻokele waiwai, ka palekana, ka ikaika, a me ka pale ʻana i ka corrosion.A ua lilo hoʻi kēia ʻenehana hou i mea ʻenehana nui i ka ʻoihana hana ʻoihana.