Ko te whakapūmau tetahi o ngā tikanga matua e whakamahia ana i roto i te umanga huihuinga waka rererangi me ētahi atu ahumahi hanganga māmā e kore e taea te whakarewa i ngā pereti whakarewa kaha-teitei. Nā te mea he tikanga whakapūmau ahurei tōna.
Ko ngā take matua mō te tikanga whakapūmau koia ēnei: he iti te utu tāutanga, he iti ngā whakaritenga whakarite poka, he nui te pono, he kaha ngā hononga nā te mama me te mama, ā, he ātete ki te ngenge nā te ngāwari me te roa o te mau.
Me pēhea te whiriwhiri i te rauemi mō ngā rivet? I te nuinga o te wā, ka whiriwhiria te rauemi o te pakeke ōrite i runga i te whakamahinga. Mena ka whakamahia ki te koranu konumohe, me whiriwhiri ngā rivet konumohe. Mena ka whakamahia ki te maitai kore waikura, me whiriwhiri i te rauemi maitai kore waikura kaha teitei. I runga ake nei.
Ka taea hoki te kōrero mō te rahi o te rivet ki ngā ihirangi e whai ake nei.
Ko te whānui o te rivet kia toru ngā wā te matotoru o te pepa matotoru rawa hei hono. E ai ki ngā paerewa hōia, me 1.4 ngā wā te whānui o te pane papatahi o te hononga rivet i te whānui o te paipa keri. Me toro atu te teitei ki te 0.3 ngā wā te whānui o te paipa keri. Ka taea e koe te whakamahi i ngā tawhā katoa kua whakahuatia hei tatau i te roa o te rivet e hiahiatia ana. Ko te manawanui he 1.5D te tikanga.
Hei tauira, te whakapūmau i ngā pereti e rua, he matotoru katoa o A (mm) te mea e honoa ana. Ko te whānui o te pūmau e tika ana me 3 xA = 3A (mm).
Nō reira, me whakamahi ngā rivet he tata ki te 3A (mm). Ko te matotoru o te konganuku he 2A (mm), ko te 1.5D he 4.5A (mm), nō reira ko te roa katoa o te rivet me 2A+4.5A=6.5A(mm).
Wā tuku: Maehe-22-2021