Daimler Chrysler Ag

Juergen Claus

Harald Pfeffinger

Reiner Heigl

Markus Kern

Reiner Heigel

A process for forming a high-strength, wear-resistant composite layer on the surface of an aluminum alloy substrate from an applied additive material. The additive material consists of an alloy or powder mixture which contains aluminum, silicon and at least 15% by weight of iron. Irradiating the alloy powder or powder mixture which has been positioned on the surface of the aluminum alloy substrate using a laser melts together with the alloy or powder mixture and a superficial part of the aluminum alloy substrate.

Method for the formation of a high-strength and wear-resistant composite layer

This invention relates to a method for the production of a valve seat () for a cylinder head of an internal combustion engine. According to said method, an additional material is melted with the cylinder head by applying energy in the site in which the valve seat () is to be formed. An alloy or a mixture consisting of an aluminum-iron alloy and at least another component is used as additional material.

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Fellbach, Germany

Juergen Claus