I-Abrasive Jet Machining (AJM) yinkqubo yoomatshini esebenzisa amasuntswana amancinci arhabaxa akhutshwa ngesantya esiphezulu kwimingxuma yemilomo ukuze asebenze kumphezulu wesixhobo somsebenzi, esigaya kwaye sisuse izinto ngokungqubana okukhawulezayo kunye nokucheba amasuntswana.
Ijethi erhabaxa ukongeza kunyango lomphezulu wokugqiba umphezulu, kubandakanya ukugquma, ukuwelda kunye nokuplata ngaphambi konyango okanye emva konyango, kwimveliso, iindawo ezincinci zoomatshini zifanelekile kakhulu ekusikeni iipleyiti, ukupolisha umphezulu wendawo, ukugaya, ukujika, ukubhola kunye nokuluka umphezulu, okubonisa ukuba ijethi erhabaxa ingasetyenziswa njengevili lokusila, isixhobo sokujika, umsiki wokugaya, ukubhola kunye nezinye izixhobo zemveli.
Kwaye ngokwendalo okanye ingcambu yejethi, ubuchwepheshe bejethi erhabaxa bahlulwe baba ziijethi zamanzi (ezirhabaxa), iijethi eziludaka, iijethi zomoya ezirhabaxa njalo njalo. Namhlanje, siza kuqala sithethe ngophuhliso lweteknoloji yejethi yamanzi erhabaxa.
Ijethi yamanzi erhabaxa yenziwa ngesiseko sejethi yamanzi acocekileyo. Ijethi yamanzi (WJ) yaqala ngeminyaka yoo-1930, enye ithiyori kukumba amalahle, enye kukusika izinto ezithile. Kwimihla yokuqala, uxinzelelo olunokufikelela kwijethi yamanzi lungaphakathi kwe-10 MPa, kwaye lungasetyenziswa kuphela ekuhlambeni imithungo yamalahle, ukusika izinto ezithambileyo ezifana nephepha kunye nelaphu, njl. Nangona kunjalo, kunye nophuhliso lwesayensi kunye netekhnoloji, kwavela iindlela ezintsha ezahlukeneyo ezinomdla kwicandelo lejethi yamanzi yamazwe ngamazwe ekupheleni kweminyaka yoo-1970, emele yona yiJethi yamanzi erhabaxa (AWJ) eyacetywa nguGqr. Mohamed Hashish ngo-1979.