1. Ukuthengwa kufuna ukuqonda iintlobo zemibhobho yentsimbi:
A. Ukwahlulwe ngohlobo: umbhobho wentsimbi yomthungo othe tye, umbhobho wensimbi ongenamthungo, umbhobho wensimbi ojikelezayo, njl.
B. Ukuhlelwa kweemilo ezinqamlekileyo zemibhobho yentsimbi yomthungo: umbhobho wesikwere, umbhobho oxande, umbhobho we-elliptical, umbhobho we-ellipse, umbhobho we-semicircular, njl.

2. Amanqaku ekufuneka uwaqaphele:
A. Ubunzima bodonga lombhobho wensimbi alwanelanga. Ukusebenzisa isango kuthetha, isiphelo somlomo wombhobho wentsimbi sibonakala sityebile ngekhaka lehamile, kodwa imilo yokuqala iya kutyhilwa ngokulinganisa ngesixhobo.
B. Sebenzisa imithungo ethe tye njengemibhobho yentsimbi engenamthungo. Inani le-welds ze-seam ezithe tye zingaphantsi kwe-weld enye yobude. Umbhobho owomeleleyo wentsimbi ugudiswa ngomatshini, owaziwa ngokuba yipolisha. Kubonakala ngathi akukho sikhewu ukuba singabinamthungo.
C. Ngoku kusekho indlela entsonkothileyo ngakumbi ngumbhobho wentsimbi ongenamthungo, okwangumbhobho wentsimbi owandisiweyo. Emva kokwandiswa, kukho umgubo okhokelayo ngaphakathi, kwaye kukho iimpawu zokutshisa ngaphandle. Iiwelds azibonakali ngokulinganayo. Imibhobho emininzi yentsimbi emikhulu ithengiswe ngaphandle komthungo kusetyenziswa olu hlobo lombhobho wentsimbi ukufuna inzuzo enkulu.
D. Imibhobho yentsimbi yomthungo edityanisiweyo yeCircumferential isebenzisa ukupolishwa ukumela imibhobho yentsimbi engenamthungo kunye nemibhobho yentsimbi yomthungo ethe tye.