Ukuqengqeleka ityhubhu eqhubekayo (emva koku kubhekiselwa kuyo njengeMPM) inkqubo ye-mandrel ibhekisa ekunxibeni ikholamu yecapilari ende ngokuqhubekayo ngothotho lolungiselelo lokubeka, indlela yokuqengqeleka kunye nokuqengqeleka ihambelana neemfuno zobungakanani bombhobho kamama. Uphawu lwayo olwahlulayo ngumthamo omkhulu, ukusebenza kakuhle okuphezulu, ubude bombhobho obuqengqelekayo obungenanto kunye nomgangatho wemveliso, uluhlu lobungakanani obukhulu; kodwa utyalo-mali lwayo olukhulu kunye nobuchwepheshe obunxulumeneyo kunye nolawulo oluzenzekelayo olufuna kakhulu.

Irekhi yeMPM yodidi lwemiqengqelo emibini, ubume obufana kakhulu nelitye lokusila eliqhelekileyo. Kuxhomekeka intshukumo mandrel MPM zinokwahlulwa ngokupheleleyo-ezidadayo kunye semi stopper isivalo mandrel lokusila iintlobo ezintathu.

1970s phambi kokuba MPM usebenzise ukusebenza mandrel ngokupheleleyo-ezidadayo. Ukusuka punch ukungena capillary emva mandrel ibe umbhobho rolling umatshini rolling, ukuqengqeleka xa ukuqengqeleka lokusila yimvelaphi ukutsala umva rollers mandrel, kukho bar off umatshini ukusuka kuqengqeleka ilungu mandrel irhoxisiwe, ukuqengqeleka kungena inyathelo elilandelayo, kwaye wabuyela mandrel lokusila reception emva kokupholisa, faka kwakhona kumjikelo olandelayo womsebenzi.

1970s France kunye Italy ziye zavela mandrel isiqingatha isitophuli kunye isivalo MPM. Ngokwenyani, ezi ndlela zimbini zokusebenza kumatshini wokuqengqeleka ityhubhu mandrel, zibolekwa indlela mandrel yokusebenza umatshini rolling ezintathu-roll.
Isiqingatha igcinwe mandrel indlela yokusebenza, ikwinkqubo yokuqengqeleka, isantya intshukumo mandrel kulinganiselwe, ikhadi umnini mandrel ibambene ngaphantsi kwesantya esongwayo phambili workpiece. igcinwe mandrel indlela yokusebenza, ngaphandle ngexesha lokuqengqeleka, isantya intshukumo mandrel kulinganiselwe, iqhina wagqiba emva kokuqengqeleka, mandrel ngumnini ikhadi barhuqe umva ukuya emsebenzini ukuqala isikhundla.

Kwiminyaka yakutshanje, i-MPM emilise okwe-Y-emilise okwesithathu ibonakalisa i-PQF yokusila, ilandele itekhnoloji yokunciphisa uxinzelelo ukusuka kwi-roller yesibini ukuya kwiinguqu ezintathu ze-roller, ngoko ke inkqubo yokuqengqeleka iimeko zokuguqulwa koxinzelelo kunye nokusabalalisa ukuguqulwa, oomatshini, izixhobo zombane zokuhambisa umthwalo, ukuqengqeleka kodonga kunye nokunyamezelwa kobunzima bodonga kwaye ke ineenzuzo ezimbini zokusila ezingenakuthelekiswa. Inkqubo ezinzileyo yokuqengqeleka kwayo inokuphuculwa kombhobho we-cross-sectional dimension, indawo ephantsi yeflange okanye i-crack Lin Wen phenomenon kwintsimi yemibhobho ebhityileyo kunye nokuqengqeleka kombhobho we-alloy ephezulu eguquguqukayo ngakumbi kunye noqoqosho.