English to Italian Law/Patents Mechanics / Mech Engineering hydraulic lash adjuster

A slug is extruded to form a stepped internal plunger diameter with a ledge separating larger and smaller diameter portions. A web is pierced to form an outlet passage for oil. An integral baffle is then formed utilizing excess wall material from the smaller diameter portion. A shave punch is inserted into the plunger and moved axially inwardly to engage and "plow back" to ledge to form an annular shelf of the integral baffle.