Stamping xovxwm ua haujlwm li cas
Tus qauv tsim qauv ntawm cov punch yog hloov cov ntawv yoj ib ncig mus rau qhov tawm suab. Lub cev muaj zog tseem ceeb tawm lub zog los tsav lub flywheel. Cov clutch tsav lub iav, crankshaft (lossis eccentric iav), txuas cov pas nrig, thiab lwm yam kom ua tiav cov kab tawm ntawm cov vias. Los ntawm lub cev muaj zog mus Rau Qhov txav ntawm tus pas txuas yog ib puag ncig.
Muaj kev hloov pauv ntawm kab ncig thiab kab tawm ntawm kev sib txuas ntawm tus pas nrig thiab cov kab sib txav. Muaj kwv yees ob qho txheej txheem hauv qhov tsim, ib qho yog pob hom, thiab lwm qhov yog tus pin hom (hom cylindrical). Hloov mus rau hauv linear tsab ntawv tsa suab ntawm slider. Tus ntaus nrig nias cov khoom siv mus rau plastically deform nws kom tau txais cov duab uas xav tau thiab qhov tseeb. Yog li no, txheej txheej pwm (sab sauv thiab qis pwm) yuav tsum tau ua kom haum, cov khoom raug tso nruab nrab ntawm lawv, thiab lub tshuab siv lub siab kom deform nws. Cov tshuaj tiv thaiv quab yuam los ntawm cov quab yuam siv rau cov khoom thaum lub sijhawm ua haujlwm yog nqus los ntawm lub tshuab punch lub cev.