Carbide
Ntawm kev tig inserts, carbide yog arguably cov khoom siv tshaj plaws; nws yog tsim los ntawm hmoov metallurgy siv tungsten-cobalt los yog tungsten-titanium-cobalt compositions. Cov khoom no ua raws li "tag nrho- nyob ib puag ncig tus yeej" ntawm lub ntiaj teb kev lag luam: nws muaj kev hnav zoo heev, siab -kub durability, thiab siab zog, tag nrho thaum muab cov nqi zoo tshaj -effectiveness. Thaum machining txheem steels, carbide inserts tuav lub neej ntev kev pab cuam, ua rau lawv zoo tagnrho xaiv rau tsawg-rau- nruab nrab ceev txiav daim ntaub ntawv.
Ceramic Inserts
Thaum machining kub tshaj 1000 degree, ceramic inserts qhia lawv cov cim zoo. Aluminium oxide-raws li los yog silicon nitride-raws li cov ntaub ntawv ceramic tuaj yeem ncav cuag hardness ntawm 91-94 HRA-surpassing carbide nyob rau hauv siab -kub tsis kam. Cov khoom no yog tshwj xeeb tshaj yog zoo- haum rau machining nyuaj-rau- txiav cov ntaub ntawv, xws li hardened steel thiab cam khwb cia hlau; thaum nws tuav qhov ruaj khov ntawm qhov ntev thaum lub sij hawm siab -machining ceev, nws qhov brittleness tseem ceeb tseem yog qhov tsis zoo.
Super- Cov ntaub ntawv nyuaj
Cubic Boron Nitride (CBN) inserts muaj ib tug hardness thib ob tsuas yog cov pob zeb diamond, ua rau lawv ib tug formidable cuab tam rau machining siab -hardness alloy steels. Lawv tuaj yeem siv zog ua cov hlau tsis muaj zog nrog lub hardness ntawm HRC 45 lossis siab dua, ua tiav qhov roughness theem ntawm Ra 0.4 lossis tsawg dua. Txawm hais tias lawv cov nqi yog qhov siab, lawv tseem yog ib qho kev xaiv tseem ceeb hauv kev lag luam xws li precision pwm manufacturing thiab aerospace engineering.
