Zingaphi iingubo zomphezulu ze-HSS drill bit? kwaye yeyiphi engcono?

Iibhithi zokubhola zentsimbi ekhawulezayo (i-HSS) zihlala zinemigqumo eyahlukeneyo yobuso eyenzelwe ukuphucula ukusebenza kwazo kunye nokuqina kwazo. Ezona bhithi zobuso zixhaphakileyo kwiibhithi zokubhola zentsimbi ekhawulezayo ziquka:

1. Ukwaleka kwe-Oxide emnyama: Olu gquma lubonelela ngokumelana nokugqwala kwinqanaba elithile kwaye lunceda ekunciphiseni ukungqubana ngexesha lokugrumba. Lukwanceda ukugcina i-lubricant kumphezulu wokugrumba. Iibhithi zokugrumba ezifakwe i-oxide emnyama zifanelekile ukugrumba izinto ezinje ngomthi, iplastiki kunye nesinyithi.

2. Ukwaleka kweTitanium Nitride (TiN): Ukwaleka kweTiN kwandisa ukumelana nokuguguleka kwaye kunceda ekunciphiseni ukungqubana, ngaloo ndlela kwandisa ubomi bezixhobo kunye nokuphucula ukusebenza kwiindawo zokugrumba ezisebenzisa ubushushu obuphezulu. Iibhithi zokugrumba ezifakwe iTiN zifanelekile ekugrumbeni izinto eziqinileyo ezifana nentsimbi engagqwaliyo, isinyithi esityhidiweyo, kunye netitanium.

3. Ukwaleka kweTitanium carbonitride (TiCN): Xa kuthelekiswa nokwaleka kweTiN, ukwaleka kweTiCN kunokumelana nokuguguleka okuphezulu kunye nokumelana nobushushu. Kufanelekile kwiibrasive zokubhola kunye nezixhobo ezishushu kakhulu ukuphucula ubomi bezixhobo kunye nokusebenza kwazo kwiindlela zokubhola ezifuna amandla.

4. Ingubo ye-titanium aluminium nitride (TiAlN): Ingubo ye-TiAlN inomgangatho ophezulu wokuxhathisa ukuguguleka kunye nokumelana nobushushu phakathi kwezo ngubo zingasentla. Ifanelekile ukugrumba iintsimbi eziqinileyo, ii-alloys ezinobushushu obuphezulu kunye nezinye izinto ezinzima ukwandisa ubomi bezixhobo kunye nokuphucula ukusebenza kwiimeko ezinzima zokugrumba.

Ukuba yeyiphi i-coating engcono kuxhomekeke kwisicelo esithile sokugrumba kunye nezinto ezigrunjwayo. I-coating nganye inika iingenelo ezikhethekileyo kwaye yenzelwe iintlobo ezahlukeneyo zezinto kunye neemeko zokugrumba. Ukugrumba ngokubanzi kwizinto eziqhelekileyo, i-drill bit egqunywe yi-oxide emnyama inokwanela. Nangona kunjalo, kwizicelo ezifuna kakhulu izinto eziqinileyo okanye ezishushu kakhulu,Iibhithi zokubhola ezigqunywe ngeTiN, TiCN okanye TiAlN zinokuba zezona zifanelekileyo ngenxa yokuguguleka kwazo okuphucukileyo kunye nokumelana nobushushu.