Iintlobo zokwaleka ezisisiseko ze end mill

I carbide end mill ikwaziwa njenge cemented carbide end mill. Ukuqina kwesixhobo ngokwawo kuphakathi kwe-HRA88-96 degrees. Kodwa ngokutyabeka phezu komhlaba, umahluko uyeza. Eyona ndlela inexabiso eliphantsi yokuphucula ukusebenza kwe-end Mill kukongeza isambatho esifanelekileyo. Inokwandisa ubomi besixhobo kunye nokusebenza.

Zeziphi iicoatings ezisisiseko ze-end mill kwimarike?

I-1.TiN - i-Titanium Nitride - isiseko esisisiseko sokunxiba i-resistant coating

I-TiN yeyona nto ixhaphakileyo yokunxiba kunye ne-abrasion ekwaziyo ukumelana nokugquma. Yehlisa ukukhuhlana, yonyusa uzinzo lwekhemikhali kunye nobushushu kwaye inciphise ukuncamathela kwemathiriyeli ehlala isenzeka ngexesha lokwenziwa kweentsimbi ezithambileyo. I-TiN ifanelekile ukugquma kwezixhobo ezenziwe nge-carbides ene-cemented- drill bits, i-milling cutters, izixhobo zokusika izixhobo, iitephu, ii-reamers, iimela ze-punch, izixhobo zokusika, izixhobo zokucheba kunye ne-flexion, i-matrices, iifom, njl. Ekubeni i-biocompatible, iyakwazi zisetyenziswe kwizixhobo zonyango (zotyando kunye namazinyo) kunye nezixhobo ezifakelwayo. Ngenxa yethowuni yombala wegolide, i-TiN ifumene ukusetyenziswa ngokubanzi njengengubo yokuhombisa. Ingubo ye-TiN esetyenzisiweyo ikhutshwe ngokulula kwiintsimbi zesixhobo. Ukulungiswa ngokutsha kwezixhobo kunokunciphisa kakhulu iindleko ingakumbi xa kusetyenziswa izixhobo ezibiza imali eninzi.

I-2.TiCN - i-Titanium Carbo-Nitride - nxiba isambatho esixhathisayo ngokuchasene ne-adhesive corrosion

I-TiCN yeyona nto igqwesileyo yenjongo zonke. I-TiCN inzima kwaye iyaxhathisa ngaphezu kwe-TiN. Ingasetyenziselwa ukugquma izixhobo zokusika, ukubethelwa kunye nokwenza izixhobo, izixhobo zokubumba iinaliti kunye nezinye izinto zokunxiba. Ekubeni i-biocompatible, inokusetyenziswa kwizixhobo zonyango kunye nezixhobo ezifakelwayo. Isantya somatshini sinokunyuswa kwaye ubomi besixhobo bunokwandiswa kakhulu nge-8x ekuxhomekeke kwisicelo, ukupholisa kunye nezinye iimeko zomatshini. Ingubo ye-TiCN iyacetyiswa ukuba isetyenziswe ukusika okupholile ngokwaneleyo ngenxa yokuzinza kwayo okuphantsi kwe-thermal. I-coating ye-TiCN esetyenzisiweyo ikhutshwe ngokulula kwaye isixhobo siphinde sifakwe kwakhona. Ukulungiswa kwakhona kwezixhobo ezibizayo kunokunciphisa kakhulu iindleko.

3.I-aluminium-titanium-nitride coating (AlTiN)

Yikhompawundi yemichiza yezinto ezintathu zealuminiyam, titanium, kunye nenitrogen. Ubukhulu bokugquma buphakathi kwe-1-4 yeemicrometers (μm).

Olona phawu lukhethekileyo lokutyabeka kwe-AlTiN luxhathiso oluphezulu kakhulu kubushushu kunye ne-oxidation. Oku kuyingxenye ngenxa yobunzima be-nano ye-38 Gigapascal (GPa). Ngenxa yoko, kulandela ukuba inkqubo yokwaleka ngaphandle kwesantya esiphezulu sokusika kunye nobushushu obuphezulu bokusika buhlala buzinzile. Xa kuthelekiswa nezixhobo ezingagqunywanga, ukutyabeka kwe-AlTiN, kuxhomekeke kwisicelo, yandisa ubomi benkonzo obuphindwe kalishumi elinesine.

I-aluminiyam ene-aluminiyam ephezulu ifanelene kakhulu nezixhobo ezichanekileyo, ezisika izinto eziqinileyo ezifana umz. intsimbi (N/mm²)

Elona qondo lobushushu liphezulu lesicelo ngu-900° Celcius (malunga ne-1,650° Fahrenheit) kwaye lithelekiseke ne-TiN yokwambathisa nge-300° Celcius ephezulu ukumelana nobushushu.

Ukupholisa akunyanzelekanga. Ngokubanzi, nangona kunjalo, ukupholisa ukongezelela kwandisa ubomi benkonzo yesixhobo.

Njengoko kukhankanyiwe kwi-Coating ye-TiAlN ngokubanzi kufuneka kuqatshelwe ukuba zombini i-coating kunye nesixhobo sentsimbi kufuneka zilungele usetyenziso kwizinto eziqinileyo. Yiyo loo nto siye sagquma iidrill ezikhethekileyo ezenziwe ngetungsten-carbide ngeAlTiN.

I-4.TiAlN - i-Titanium Aluminium Nitride - nxiba i-coating resistant coating for high speed cut

I-TiAlN yiyaleko enobunzima obugqwesileyo kunye nokumelana ne-thermal kunye ne-oxidation ephezulu. Ukufakwa kwe-aluminiyam kubangele ukwanda kwe-thermal resistance of this composite PVD coating ngokubhekiselele kwi-standard TiN yokugqoka nge-100 ° C. I-TiAlN iqhele ukugqunywa kwizixhobo zokusika ezikhawulezayo ezisetyenziswa koomatshini be-CNC ukwenza izixhobo zokuqina okuphezulu kunye neemeko ezinzima zokusika. I-TiAlN ifanelekile ngokukodwa kwi-monolithic hard metal milling cutters, i-drill bits, ukufaka izixhobo zokusika kunye neemela zokubumba. Ingasetyenziswa kwizicelo zomatshini ezomileyo okanye ezikufutshane nezomileyo.