Valve Seat and Valve Guide Machining Tool

Abstract

A valve seat and valve guide machining tool for fine machining the valve seat and valve guide in a cylinder head of a combustion engine, having at least two tool parts (3,5) of which a first has at least one geometrically determined blade (11) and is assigned to machining the valve seat, and has a second at least one geometrically determined blade (15) and is assigned to machining the valve guide which are connected by a precision interface (17), where the precision interface (17) is configured as a truncated cone and has a first flat surface (19) on the first tool part (3) and a second flat surface (21) on the second tool part (5) which are located perpendicular to a center axis (23) of the tool (1) and, when the tool (1) is assembled, abut each other, where the first part of the tool (3) is proposed made of steel. The characteristics of the tool are that the second part of the tool (5) is divided and has two sections (39, 41) of which a first section (39) consists of carbide and is assigned to the precision interface (17) and a second section (41) consists of a material which is more ductile than the material of the part of the tool (3) and which has at least one blade (13) for the second part of the tool (5).

Dependencies are inferred from the claim text.