Raws li ib qho ntawm cov khoom tseem ceeb ntawm lub cav, lub crankshaft bears qhov kev sib koom ua ke ntawm alternating bending thiab alternating torsional loads thaum lub sij hawm txav. Tshwj xeeb, qhov kev hloov pauv ntawm cov ntawv xov xwm thiab lub crank bears qhov kev hloov pauv loj tshaj plaws, thiab crankshaft fillet txoj hauj lwm feem ntau ua rau lub crankshaft tawg vim muaj kev ntxhov siab ntau. Yog li ntawd, nyob rau hauv lub crankshaft tsim thiab manufacturing txheej txheem, nws yog tsim nyog los ntxiv dag zog rau lub crankshaft fillet txoj hauj lwm los txhim kho tag nrho cov kev ua tau zoo ntawm lub crankshaft. Crankshaft fillet ntxiv dag zog rau feem ntau yog siv induction hardening, nitriding kev kho mob, fillet txhaj peening, fillet dov thiab laser shock.

Kev txhaj tshuaj blasting yog siv los tshem tawm cov nplais oxide, xeb, xuab zeb thiab cov xim qub ntawm cov khoom siv hlau nruab nrab thiab loj thiab cov castings uas muaj thickness tsis tsawg tshaj li 2 hli los yog tsis xav tau qhov ntev thiab contours. Nws yog ib txoj kev ntxuav ua ntej txheej txheej. Kev txhaj tshuaj peening tseem hu ua txhaj tshuaj peening, uas yog ib txoj hauv kev zoo los txo qhov qaug zog ntawm qhov chaw thiab ua kom lub neej ntev.

Kev txhaj tshuaj peening yog muab faib ua txhaj tshuaj peening thiab xuab zeb blasting. Kev siv tshuaj tua blasting rau kev kho deg, qhov cuam tshuam lub zog loj, thiab cov nyhuv ntxuav yog pom tseeb. Txawm li cas los xij, kev kho ntawm nyias phaj workpieces los ntawm kev txhaj tshuaj peening tuaj yeem yooj yim deform lub workpiece, thiab cov hlau txhaj tshuaj hits nto ntawm lub workpiece (seb tua blasting los yog tua peening) kom deform cov hlau substrate. Vim tias Fe3O4 thiab Fe2O3 tsis muaj plasticity, lawv tev tawm tom qab tawg, thiab cov roj zaj duab xis yog cov khoom siv hauv paus deforms tib lub sijhawm, yog li kev txhaj tshuaj blasting thiab tua blasting tsis tuaj yeem tshem tawm cov roj stains ntawm cov khoom ua haujlwm nrog cov roj stains. Ntawm cov txheej txheem kho saum npoo uas twb muaj lawm rau workpieces, qhov zoo tshaj plaws tu nyhuv yog sandblasting.