Yikuphi ukucaciswa kobuchwepheshe kanye namapharamitha okufanele amapharamitha okufanele acabange lapho ukhetha isisekelo se-granite?

Uma kukhulunywa ngokukhetha isisekelo se-granite somshini wokulinganisa wokuxhumanisa (CMM), kukhona imininingwane eminingi yezobuchwepheshe namapharamitha okufanele abhekwe ukuze aqinisekise ukunemba nokwethenjwa kwezilinganiso. Kulesi sihloko, sizoxoxa ngezinye zalezi zinto nokubaluleka kwazo kwinqubo yokukhetha.

1. Ikhwalithi Yezinto Ezibonakalayo: I-Granite ingenye yezinto ezithandwa kakhulu zesisekelo se-CMM ngenxa yokuqina kwayo okuphezulu, ukukhishwa okuphezulu okuphezulu kwe-thermal, kanye nekhono elihle kakhulu lokuqina. Kodwa-ke, akuzona zonke izinhlobo ze-granite ezilungele le njongo. Ikhwalithi ye-granite esetshenziselwa isisekelo se-CMM kufanele ibe phezulu, ngeziphene ezincane noma epulini, ukuqinisekisa izilinganiso ezizinzile nezinembile.

2. Ukuqina: Enye into ebalulekile okufanele uyicabangele lapho ukhetha isisekelo se-Granite se-CMM ukuqina kwaso. Isisekelo kufanele sibe ne-deflection encane noma i-deformation ngaphansi komthwalo, ukuqinisekisa izilinganiso ezinembile neziphindaphindwayo. Ukuqina kwesisekelo kuyathinteka nekhwalithi yendawo esekelayo kanye nezinga lesisekelo somshini.

3. Ukugcwala: Ifulethi lesisekelo segranite libalulekile ngokunemba kokulinganisa. Isisekelo kufanele senziwe ngokunemba okuphezulu futhi kufanele sihlangabezane nokubekezelelana okucacisiwe. Ukuphambuka kusuka ekuphathweni kungadala amaphutha okulinganisa, futhi i-CMM kufanele ilinganiswe ngezikhathi ezithile ukunxephezela ukuphambuka okunjalo.

I-4. Ukuqedwa komhlaba okuphezulu: Ukuqedwa komhlaba kwesisekelo se-Granite nakho kubalulekile ekuqinisekiseni ukunemba kwezilinganiso. Indawo enzima ingadala ukuthi uphenyo lweqa noma lunamathele, kanti indawo ebushelelezi iqinisekisa isipiliyoni esingcono sokulinganisa. Ngakho-ke, ukuqedwa okungaphezulu kufanele kukhethwe ngokuya ngezidingo zohlelo lokusebenza.

I-5. Ubukhulu nesisindo: ubukhulu nesisindo sesisekelo se-granite kuncike ngosayizi nesisindo somshini we-CMM. Ngokuvamile, isisekelo esindayo nesikhudlwana sinikeza ukuqina okungcono nokunemba kepha kudinga ukwakheka okunamandla okusekelwa kanye nesisekelo. Usayizi wesisekelo kufanele kukhethwe ngokusekelwe ngosayizi womsebenzi wokusebenza kanye nokutholakala kwendawo yokulinganisa.

I-6. Izimo zezemvelo: Isisekelo se-Granite, njenganoma iyiphi enye ingxenye yomshini we-CMM, ithinteka yizimo zemvelo ezifana nokushisa, umswakama, nokudlidliza. Isisekelo se-Granite kufanele sikhethwe ngokuya ngezimo zemvelo zendawo yokulinganisa futhi kufanele zihlukaniswe kunoma yimiphi imithombo yokudlidliza noma yokushisa.

Ekuphetheni, ukukhethwa kwesisekelo se-granite somshini we-CMM kudinga ukucubungula ngokucophelela ukucaciswa kwemininingwane eminingana yezobuchwepheshe kanye namapharamitha ukuqinisekisa ukukalwa okunembile nangokwethehlulelo. Ikhwalithi yezinto ezibonakalayo, ukuqina, iflethi, ukuqeda okungaphezulu, usayizi, kanye nesisindo, kanye nezimo zemvelo zonke izinto ezibucayi okufanele zibhekwe ngesikhathi senqubo yokukhetha. Ngokukhetha isisekelo se-granite esifanele, umshini we-CMM unganikeza izilinganiso ezinembile nezinokwethenjelwa, okuholela kwikhwalithi yomkhiqizo ethuthukisiwe nokwaneliseka kwamakhasimende.