Ukunxiba isixhobo se-CNC yenye yeengxaki ezisisiseko ekusikeni. Ukuqonda iifom kunye noonobangela bokunxitywa kwesixhobo kunokusinceda songeze ubomi besixhobo kwaye siphephe ukwenza izinto ezingaqhelekanga kumatshini we-CNC.
1) Iindlela ezahlukeneyo zokuThwetywa kwesixhobo
Ekusikeni kwesinyithi, ubushushu kunye nokukhuhlana okwenziwa ziitshiphusi ezityibilikayo ecaleni kwesixhobo sobuso beraki ngesantya esiphezulu ukwenza isixhobo kwindawo enzima yomatshini. Indlela yokunxiba isixhobo ikakhulu ilandelayo:
I-1) Amandla omatshini: Uxinzelelo lomatshini kwi-cut cut of the insert ibangela ukuphuka.
2) Ukushisa: Kwinqanaba lokusika lokufaka, utshintsho lweqondo lokushisa lubangela ukuqhekeka kunye nokushisa kubangela ukuguqulwa kweplastiki.
I-3) I-Chemical reaction: Ukusabela kweekhemikhali phakathi kwe-carbide ene-cemented kunye ne-workpiece material kubangela ukuguga.
I-4) Ukugaya: Kwintsimbi yentsimbi, i-SiC inclusions iya kunxiba phantsi kwe-insert cut edge.
5) Ukubambelela: Kwizinto ezincangathi, i-buildup / buildup buildup.
2) Iindlela ezisithoba zokunxiba izixhobo kunye nemilinganiselo yokuchasana
1) ukunxiba kweflank
I-Flank wear yenye yeentlobo eziqhelekileyo zokunxiba ezenzeka kwiflank yokufaka (imela).
Isizathu: Ngexesha lokusika, ukungqubuzana kunye nomphezulu wezinto zokusebenza kubangela ukulahlekelwa kwesixhobo kwi-flank. Ukunxiba ngokuqhelekileyo kuqala kumgca wecala kwaye uqhubela phambili phantsi komgca.
Impendulo: Ukunciphisa isantya sokusika, ngelixa ukwandisa ukondla, kuya kwandisa ubomi besixhobo ngeendleko zemveliso.
2) Ukunxiba kweCrater
Isizathu: Ukudibana phakathi kweetshiphusi kunye neraki yobuso bofakelo (isixhobo) kukhokelela ekugugeni kwecrater, nto leyo ekukusabela kwekhemikhali.
Imilinganiselo yokulwa: Ukunciphisa isantya sokusika kunye nokukhetha ukufaka (izixhobo) kunye nejometri echanekileyo kunye nokwaleka kuya kwandisa ubomi besixhobo.
3) Ukuguqulwa kweplastiki
ukuwa kokuphela
ukudakumba okukhulu
I-deformation yeplastiki ithetha ukuba imilo yecala lokusika ayitshintshi, kwaye i-cutting edge iguqula ngaphakathi (i-cutting edge depression) okanye phantsi (i-cutting edge collapses).
Isizathu: Umgca wokusika uphantsi koxinzelelo kwimikhosi ephezulu yokusika kunye nokushisa okuphezulu, ukudlula amandla okuvelisa kunye nokushisa kwesixhobo sesixhobo.
Imilinganiselo yokulwa: Ukusebenzisa izinto ezinobunzima obuphezulu be-thermal kunokusombulula ingxaki yokuguqulwa kweplastiki. Ukugquma kuphucula ukuchasana kokufakela (imela) kwi-deformation yeplastiki.
4) I-Coating ikhupha
I-coating spalling ngokuqhelekileyo iyenzeka xa kusetyenzwa izinto ezineempawu zokubopha.
Isizathu: Imithwalo encamathelayo ikhula ngokuthe ngcembe kwaye umda wokusika uphantsi koxinzelelo loxinzelelo. Oku kubangela ukuba i-coating ikhuphe, iveze umgca ongaphantsi okanye i-substrate.
I-Countermeasures: Ukwandisa isantya sokusika kunye nokukhetha i-insert nge-coating thinner iya kunciphisa i-coating spalling yesixhobo.
5) Ukuqhekeka
Iintanda yimingxuma emxinwa egqabhuka yenze imida emitsha. Ezinye iintanda kwi-coating kwaye ezinye iintanda zisasaza phantsi kwi-substrate. Iintanda zekama ziphantse zibe yi-perpendicular kumgca we-edge kwaye zivame ukuqhekeka kwe-thermal.
Unobangela: Ukuqhekeka kwekama kwenziwa ngenxa yokuguquguquka kobushushu.
Amanyathelo okunqanda: Ukuthintela le meko, kungasetyenziswa imathiriyeli yencakuba yokuqina okuphezulu, kwaye into yokupholisa kufuneka isetyenziswe ngobuninzi okanye hayi.
6) Ukutshiza
I-Chipping iqulethe umonakalo omncinci kumgca wecala. Umahluko phakathi kokuqhawula kunye nokuqhawula kukuba i-blade isenokusetyenziswa emva kokuqhawula.
Unobangela: Zininzi indibaniselwano yeendawo zokunxiba ezinokukhokelela ekuqhekekeni komphetho. Nangona kunjalo, ezona ziqhelekileyo zi-thermo-mechanical kunye ne-adhesive.
Amanyathelo okuthintela: Amanyathelo okuthintela ahlukeneyo anokuthathwa ukuze kuncitshiswe itshiphu, kuxhomekeke kwimeko yokunxitywa okubangela ukuba kwenzeke.
7) Ukunxiba kweGroove
Ukunxitywa kwe-notch kubonakaliswe ngomonakalo ogqithisiweyo wasekhaya kubunzulu obukhulu bokusikwa, kodwa oku kunokwenzeka kumda wokusika wesibini.
Isizathu: Kuxhomekeke ekubeni ukunxitywa kweekhemikhali kunamandla kwi-groove wear, xa kuthelekiswa nokukhula okungaqhelekanga kwe-adhesive wear okanye i-thermal wear, ukuphuhliswa kweekhemikhali zokugqoka rhoqo, njengoko kuboniswe kumfanekiso. Kwiimeko zokuncamathelisa okanye zokunxiba ezishushu, ukuqina komsebenzi kunye nokwakheka kwe-burr kunegalelo elibalulekileyo ekunxityweni kwenotshi.
I-Countermeasures: Kwizinto ezisebenza nzima, khetha i-angle yokungena encinci kwaye utshintshe ubunzulu bokusika.
8) Ikhefu
Ukuqhekeka kuthetha ukuba ininzi ye-cut edge iphukile kwaye i-insert ayisakwazi ukusetyenziswa.
Isizathu: I-edge yokusika ithwele umthwalo ongaphezulu kunokuba inokuthwala. Oku kunokuthi kube ngenxa yokuba ukunxiba kwakuvunyelwe ukuphuhlisa ngokukhawuleza, okubangelwa ukunyuka kwamandla okusika. Idatha yokusika engalunganga okanye imiba yozinzo lokucwangcisa inokukhokelela ekuqhekekeni kwangaphambi kwexesha.
Yintoni ongayenza: Ukuchonga iimpawu zokuqala zolu hlobo lokugqoka kwaye uthintele ukuqhubela phambili kwayo ngokukhetha idatha echanekileyo yokusika kunye nokujonga ukuzinza kokucwangcisa.
9) Ungqameko olwakhiweyo (ukuncamathela)
I-Built-up edge (BUE) kukwakhiwa kwemathiriyeli ebusweni behariki.
Isizathu: Izinto ze-chip zingenza phezulu kwinqanaba lokusika, ukuhlula umgca wokusika kwizinto eziphathekayo. Oku kwandisa amandla okusika, okunokubangela ukungaphumeleli ngokubanzi okanye ukuchithwa kwe-edge-up, ehlala isusa i-coating okanye iinxalenye ze-substrate.
Imilinganiselo yokulwa: Ukunyusa isantya sokusika kunokuthintela ukubunjwa kwe-edge eyakhelweyo. Xa ucubungula izinto ezithambileyo, ezona zibonakalayo, kukulungele ukusebenzisa umphetho obukhali wokusika.
Ixesha lokuposa: Jun-06-2022
