Iiparameter zobugcisa kunye nemigangatho yesiseko soomatshini segranite.

 

I-granite ibisoloko iqatshelwa njengesixhobo esiphambili kwiziseko zoomatshini ngenxa yeempawu zayo ezibalaseleyo, kubandakanya uxinano oluphezulu, ukuqina, kunye nokumelana nokwanda kobushushu. Ukuqonda iiparameter zobugcisa kunye nemigangatho enxulumene neziseko zoomatshini ze-granite kubalulekile kwiinjineli kunye nabavelisi abaxhomekeke ekuchanekeni nasekuqineni kwizicelo zabo.

Enye yeeparamitha zobugcisa eziphambili zeziseko zoomatshini begranite ngamandla ayo okuxinanisa, adla ngokuba phakathi kwe-100 ukuya kwi-300 MPa. La mandla aphezulu okuxinanisa aqinisekisa ukuba igranite inokumelana nemithwalo ebalulekileyo ngaphandle kokuguquka, nto leyo eyenza ukuba ilungele ukuxhasa oomatshini abanzima kunye nezixhobo. Ukongeza, igranite ibonisa ii-coefficients zokwandisa ubushushu eziphantsi, ngokubanzi malunga ne-5 ukuya kwi-7 x 10^-6 /°C, nto leyo enciphisa utshintsho olubangelwa kukutshintshatshintsha kobushushu, ukuqinisekisa ukusebenza rhoqo kwiindawo ezahlukeneyo.

Ukuthe tyaba komphezulu ngomnye umgangatho obalulekileyo kwiziseko zoomatshini zegranite. Ukunyamezela ukuthe tyaba kudla ngokuchazwa kwii-micrometer, kunye nokusetyenziswa okuchanekileyo okuphezulu okufuna ukuthe tyaba okuqinileyo njenge-0.005 mm ngemitha. Eli nqanaba lokuchaneka libalulekile kwizicelo ezifana noomatshini bokulinganisa abadibeneyo (ii-CMM) kunye nezixhobo ze-optical, apho nokuba kuthe tye kancinci kunokukhokelela kwiimpazamo ezinkulu zokulinganisa.

Ngaphezu koko, uxinano lwegranite ludla ngokuba phakathi kwe-2.63 ukuya kwi-2.75 g/cm³, nto leyo enegalelo ekuzinzeni kwayo kunye neempawu zokudambisa ukungcangcazela. Ezi mpawu zibalulekile ekunciphiseni impembelelo yokungcangcazela kwangaphandle, ngaloo ndlela ziphucula ukuchaneka kwezixhobo ezibuthathaka ezifakwe kwiziseko zegranite.

Ukuqukumbela, iiparameter zobugcisa kunye nemigangatho yeziseko zoomatshini zegranite zidlala indima ebalulekileyo ekusetyenzisweni kwazo kumashishini ahlukeneyo. Ngokulandela ezi nkcukacha, abavelisi banokuqinisekisa ukuthembeka nokusebenza kwezixhobo zabo, ekugqibeleni okukhokelela ekuphuculeni ukusebenza kakuhle kunye nokuchaneka kwiinkqubo zokuvelisa. Njengoko ubuchwepheshe buqhubela phambili, imfuno yeziseko zoomatshini zegranite ezikumgangatho ophezulu iya kuqhubeka ikhula, nto leyo egxininisa ukubaluleka kokuqonda le migangatho yobugcisa.