Method for the production of a valve tappet for internal combustion engines

摘要

The invention relates to a method for the production of a valve tappet for internal combustion engines comprising a bush with a closed bottom, a replaceable disc for setting the valve clearance being arranged between the bottom of the bush and a valve-timing cam, in a recess in the bottom which is bounded by a continuous rim surrounding the disc. To form the rim, a drawn bush (3) is drawn through a die (7) from the open end of the bush (3), the bush (3) being supported on the inside by a punch (9) and on the outer side (10) of the bottom by a force plate (11), the diameter of which is slightly greater than the diameter of the disc (4). <IMAGE>