Raws li cov ntaub ntawv kuv pom, ntawm no yog cov lus qhia ua lus Askiv zoo rau cov txheej txheem ntawm cov txheej txheem tshuab machining:
Cov txheej txheem ntawm Mechanical Machining Txheej Txheem
Taw qhia
Cov txheej txheem machining yog cov txheej txheem tsim khoom uas tshem tawm cov khoom siv los ntawm cov khoom ua haujlwm kom ua tiav cov duab, qhov ntev, thiab qhov zoo. Cov txheej txheem no tsim cov caj qaum ntawm kev tsim khoom niaj hnub, nrog ntau dua 60% ntawm cov khoom tiav tau tsim los ntawm kev ua haujlwm machining. Lub hauv paus ntsiab lus tseem ceeb suav nrog kev tswj xyuas cov khoom tshem tawm los ntawm kev txiav, abrasion, lossis erosion mechanisms.
Basic Machining Operations
Cov txheej txheem machining tseem ceeb suav nrog:
1. tigTig yog ua rau ntawm lub tshuab dhos qhov chaw ua haujlwm tig thaum lub cuab yeej txiav cov khoom tshem tawm. Cov txheej txheem no yog qhov zoo tagnrho rau kev tsim cylindrical thiab conical nto, sab nraud thiab sab hauv diameters, threads, thiab grooves. Cov kev siv ib txwm muaj xws li kev tsim cov ncej, lub tes tsho bearing, thiab cov khoom siv cav.
2. MillingMilling siv ntau lub- taw tes txiav cov cuab yeej rau lub tshuab tiaj tus, cov qhov, lub zog, thiab cov contours nyuaj. Lub workpiece tseem nyob ruaj ruaj los yog txav linearly thaum lub cutter tig ntawm high speeds. Ntau yam kev ua haujlwm milling suav nrog lub ntsej muag milling, kawg milling, thiab profile milling, ua rau nws tsim nyog rau kev tsim khoom loj ntawm tsheb thiab aerospace Cheebtsam.
3. DrillingDrilling tsim ib puag ncig lub qhov uas siv lub rotating laum me ntsis uas pub axially rau hauv lub workpiece. Raws li kev ua haujlwm ntau tshaj plaws, drilling yog lub hauv paus rau kev ua haujlwm tom ntej xws li tho txawv, reaming, thiab tapping. Cov ntawv thov muaj ntau yam los ntawm kev tsim lub qhov ntsia hlau mus rau qhov tseeb qhov chaw nyob hauv cov khoom siv dav hlau.
4. Ntshaitho txawv qhov uas twb muaj lawm siv ib zaug -taw tes txiav cov cuab yeej, ua tau zoo dua precision thiab zoo dua nto tiav dua drilling ib leeg. Cov txheej txheem no yog qhov tseem ceeb rau kev tsim lub tog raj kheej lub tog raj kheej, turbine vaj tse, thiab precision bearing rooj.
5. Sib tsooKev sib tsoo siv lub log abrasive kom tshem tawm cov khoom me me kom ua tiav qhov zoo tshaj plaws thiab qhov tseeb qhov tseeb. Cov txheej txheem ua tiav no tuaj yeem ua tiav qhov siab ntev li 0.001mm thiab qhov chaw roughness qhov tseem ceeb ntawm 1.6-0.1μm Ra, ua rau nws zoo tagnrho rau cov khoom siv tawv tawv thiab cov cuab yeej precision.
Hlau Txiav Cov Cai
Cov txheej txheem hlau txiav yuav ua rau lub cev muaj zog:
Chip Tsim: Kev tshem tawm cov khoom tshwm sim los ntawm cov yas deformation, tsim cov chips uas sib txawv ntawm hom los ntawm kev nruam mus rau tsis tu ncua raws li cov khoom siv ua haujlwm thiab txiav cov kev mob.
Txiav quab yuam: Peb lub zog tseem ceeb ua thaum lub sijhawm ua haujlwm: txiav quab yuam, pub quab yuam, thiab lub zog radial. Kev nkag siab txog cov zog no yog qhov tseem ceeb rau kev tsim cov cuab yeej thiab xaiv tshuab.
Thaum tshav kub kub tiam: Kwv yees li ntawm 80% ntawm kev txiav lub zog hloov mus rau qhov cua sov, cuam tshuam rau lub neej ntawm lub cuab yeej, qhov tseeb ntawm qhov chaw ua haujlwm, thiab qhov tseeb ntawm qhov chaw. Kev tswj xyuas kom zoo los ntawm kev txiav cov kua dej thiab kev ua kom zoo dua yog qhov tseem ceeb.
Tool Hnav: Progressive tool deterioration tshwm sim los ntawm ntau yam mechanisms xws li abrasion, adhesion, thiab diffusion. Cov cuab yeej lub neej ncaj qha cuam tshuam rau machining kev lag luam thiab cov khoom zoo.
Txheej txheem Parameter
Cov tsis tseem ceeb tswj kev ua haujlwm machining suav nrog:
Txiav ceev: Tus txheeb ze ceev ntawm lub cuab yeej thiab workpiece
Pub tus nqi: Qhov kev ncua deb ntawm lub cuab yeej nce mus rau ib lub kiv puag ncig lossis mob stroke
Qhov tob ntawm Txiav: Lub thickness ntawm cov khoom muab tshem tawm nyob rau hauv ib tug pass
Cov cuab yeej Geometry: Rake kaum sab xis, lub kaum sab xis clearance, thiab txiav ntug npaj muaj feem cuam tshuam rau kev ua haujlwm
Daim ntawv thov thiab qhov tseem ceeb
Cov txheej txheem machining yog qhov tseem ceeb hauv kev lag luam:
Automotive: Cav Cheebtsam, kis tau tus mob qhov chaw, thiab precision gears
Aerospace: Turbine blades, structural Cheebtsam, thiab tsaws iav
Kho mob: Cov cuab yeej phais, kev cog hniav, thiab cov khoom siv prosthetic
Electronics: Precision pwm, connectors, thiab micro{0}}cov khoom
