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    • 2. 发明申请
    • PROCESS AND APPARATUS FOR HARDENING THE SURFACE LAYER OF COMPONENTS HAVING A COMPLICATED SHAPE
    • 方法和设备表面硬化FORM复杂的部件
    • WO2008049513A8
    • 2008-10-30
    • PCT/EP2007008787
    • 2007-10-10
    • FRAUNHOFER GES FORSCHUNGBRENNER BERNDTBONSS STEFFENTIETZ FRANKSEIFERT MARKOHANNWEBER JANKUEHN STEFANKARSUNKE UDO
    • BRENNER BERNDTBONSS STEFFENTIETZ FRANKSEIFERT MARKOHANNWEBER JANKUEHN STEFANKARSUNKE UDO
    • C21D1/09C21D10/00
    • C21D1/09C21D10/00C21D10/005C21D11/00
    • The invention relates to the hardening of the surface layer of parts of machines, plants and apparatuses and also tools. Objects for which the application is possible and advantageous are components which are subjected to severe fatigue or wear stresses and are composed of hardenable steels and have a complicated shape and whose surface has to be hardened selectively on the functional surfaces or whose functional surface has a multidimensional shape. The process for hardening the surface layer of components having a complicated shape is carried out by means of a plurality of energy input zones. According to the invention, it is characterized in that the energy input zones are conducted on different curved parts separately in space and time and by means of cooperatively working transport systems so that superposition of the individual temperature fields forms a uniform temperature field which completely covers the functional surface of the component and within which each surface element of the later hardening zone of the component attains the selected austenite formation temperature interval ?T a at least once and the time interval ?t between the maximum temperatures T maxn of the individual temperature fields is from 3.1 to 3.n smaller than the time ?t mS which is required to go below the martensite start temperature MS during the cooling phase. The apparatus by means of which the process of the invention can be carried out is, according to the invention, characterized in that the energy configuring units are connected to one or more energy sources for optical or electromagnetic radiation and are each fixed to separate but cooperatively operating transport systems.
    • 本发明指的是外层的机器,系统和设备的网站哈通,以及工具对象,其应用是可能的,并且合适的,是高度疲劳或硬化钢,其具有复杂的形状和表面选择性地在所述的穿暴露部件 必须被硬化功能面或者其中功能面具有多维形式。 复杂的组件的表面硬化形状的方法是通过它是根据本发明其特征在于,所述动力输入区是在几个Energieeinwirkzonen来进行不同的空间上分离的和时间上的轨迹和装置,使得由各个温度的叠加字段均匀,该装置的功能面完全配合工作的运动系统 全面温度场产生达到至少一次在其内选择Austenitisierungstemperaturintervall≤T的组件的后固化的每个表面元件和所述单个温度字段3.1的最大内的温度T MAX_N 之间的时间间隔Δt 是至3.n小于时间t 毫秒,这是需要在冷却阶段期间为小于马氏体MS,该装置与根据本发明你的方法 可以根据其特征在于,所述能量整形单元被连接到一个或多个能量源用于光学或电磁辐射和单独地分离,但配合工作的运动系统被附接到本发明进行rchgeführt。