Snecma

Pascal Charles Emile Thoison

Laurent Ferrer

Claude Roger Robert Turrini

Jean-François Laurent Chabot

Gilles Rouge

A method of fabricating a martensitic stainless steel including: 1) heating steel to a temperature higher than austenizing temperature of the steel, then quenching the steel until a hottest portion of the steel is at a temperature less than or equal to a maximum temperature, and greater than or equal to a minimum temperature, a cooling rate being sufficiently fast for austenite not to transform into a ferrito-perlitic structure; 2) performing a first anneal followed by cooling until the hottest portion of the steel is at a temperature less than or equal to the maximum temperature and greater than or equal to the minimum temperature; 3) performing a second anneal followed by cooling to ambient temperature; and at the end of each of 1) and 2), performing: &#x3c9;) as soon as temperature of the hottest portion of the steel reaches the maximum temperature, immediately heating the steel once more.

Martensitic stainless steel machineability optimization

Slotting milling cutter, comprising a carbide body () and a ceramic head () fixed by brazing to one end of the body, this head having teeth (), each comprising a cutting edge () formed by the intersection between a front cutting face (A) and a lower flank face, in which the milling cutter has a frustoconical general shape, the profile of the flank face, formed by the intersection of the flank face with a plane passing through the axis of the milling cutter, has an outwardly convex rounded shape, and the radial cutting angle is negative.

Growing community of inventors

Mennecy, France

Pascal Charles Emile Thoison