Method and device for laser beam welding
    1.
    发明授权
    Method and device for laser beam welding 有权
    激光束焊接方法和装置

    公开(公告)号:US06444947B1

    公开(公告)日:2002-09-03

    申请号:US09463737

    申请日:2000-02-16

    IPC分类号: B23K2600

    摘要: The invention relates to a method and a device for laser-beam welding, because the invention is especially suitable for deep welding a wide variety of materials. The object of the invention is to weld a wide variety of materials by means of laser radiation, especially by deep welding, with a reduced amount of work and at the same time good quality of the welded joint produced. The procedure adopted for this according to the invention is that the intensity of the laser radiation is set by beam-shaping in and on the surface of workpieces in such a way that a small area in the workpiece is irradiated with a great intensity, to form a steam capillary there, and a further, larger adjacent area on the workpiece surface is irradiated with a lesser intensity, and as a result a bell-shaped opening of the steam capillary is formed on the workpiece surface and the cooling rate of the melted material is reduced.

    摘要翻译: 本发明涉及一种用于激光束焊接的方法和装置,因为本发明特别适用于深层焊接各种材料。 本发明的目的是通过激光辐射,特别是通过深度焊接,以减少的工作量同时焊接接头的良好质量来焊接多种材料。 根据本发明的方法是通过在工件表面上和表面上的波束整形来设定激光辐射的强度,使得工件中的小面积以大的强度被照射,以形成 蒸汽毛细管,工件表面上的另外较大的相邻区域以较小的强度照射,结果在工件表面上形成蒸汽毛细管的钟形开口,熔融材料的冷却速度 降低了。

    Process and apparatus for hardening the surface layer of components having a complicated shape
    2.
    发明授权
    Process and apparatus for hardening the surface layer of components having a complicated shape 有权
    用于硬化具有复杂形状的部件的表面层的方法和装置

    公开(公告)号:US09187794B2

    公开(公告)日:2015-11-17

    申请号:US12312115

    申请日:2007-10-10

    摘要: 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 ΔTa at least once and the time interval Δt between the maximum temperatures Tmaxn of the individual temperature fields is from 3.1 to 3.n smaller than the time ΔtmS 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.

    摘要翻译: 本发明涉及机器,设备和设备的部件表面层的硬化以及工具。 应用可能和有利的对象是遭受严重疲劳或磨损应力的部件,并且由可硬化钢组成并且具有复杂的形状并且其表面必须在功能表面上选择性地硬化,或者其功能表面具有多维度 形状。 用于硬化具有复杂形状的部件的表面层的工艺通过多个能量输入区域进行。 根据本发明,其特征在于,能量输入区域在空间和时间上分别在不同的弯曲部件上进行,并且通过协同工作的输送系统,使得各个温度场的叠加形成均匀的温度场,其完全覆盖 组分的功能表面,并且其中组分的后期硬化区的每个表面元素至少达到所选奥氏体形成温度间隔&Dgr; Ta,并且各个温度场的最高温度Tmaxn之间的时间间隔&Dgr; t 从3.1到3.n小于在冷却阶段要求低于马氏体起始温度MS的时间&Dgr; tmS。 根据本发明,可以实现本发明的方法的装置是,其特征在于,能量构成单元连接到一个或多个用于光学或电磁辐射的能量源,并且各自固定为分离但协作地 操作运输系统。

    PROCESS AND APPARATUS FOR HARDENING THE SURFACE LAYER OF COMPONENTS HAVING A COMPLICATED SHAPE
    4.
    发明申请
    PROCESS AND APPARATUS FOR HARDENING THE SURFACE LAYER OF COMPONENTS HAVING A COMPLICATED SHAPE 有权
    用于硬化具有复合形状的部件的表面层的工艺和装置

    公开(公告)号:US20100126642A1

    公开(公告)日:2010-05-27

    申请号:US12312115

    申请日:2007-10-10

    摘要: 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 ΔTa at least once and the time interval Δt between the maximum temperatures Tmaxn of the individual temperature fields is from 3.1 to 3.n smaller than the time ΔtmS 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.

    摘要翻译: 本发明涉及机器,设备和设备的部件表面层的硬化以及工具。 应用可能和有利的对象是遭受严重疲劳或磨损应力的部件,并且由可硬化钢组成并且具有复杂的形状并且其表面必须在功能表面上选择性地硬化,或者其功能表面具有多维度 形状。 用于硬化具有复杂形状的部件的表面层的工艺通过多个能量输入区域进行。 根据本发明,其特征在于,能量输入区域在空间和时间上分别在不同的弯曲部件上进行,并且通过协同工作的输送系统,使得各个温度场的叠加形成均匀的温度场,其完全覆盖 组分的功能表面,并且其中组分的后期硬化区的每个表面元素至少达到所选奥氏体形成温度间隔&Dgr; Ta,并且各个温度场的最高温度Tmaxn之间的时间间隔&Dgr; t 从3.1到3.n小于在冷却阶段要求低于马氏体起始温度MS的时间&Dgr; tmS。 根据本发明,可以实现本发明的方法的装置是,其特征在于,能量构成单元连接到一个或多个用于光学或电磁辐射的能量源,并且各自固定为分离但协作地 操作运输系统。

    Method for Producing Wear-Resistant and Fatigue-Resistant Edge Layers in Titanium Alloys, and Components Produced Therewith
    5.
    发明申请
    Method for Producing Wear-Resistant and Fatigue-Resistant Edge Layers in Titanium Alloys, and Components Produced Therewith 审中-公开
    在钛合金中生产耐磨和耐疲劳边缘层的方法及其生产的部件

    公开(公告)号:US20080011391A1

    公开(公告)日:2008-01-17

    申请号:US11571818

    申请日:2005-07-08

    IPC分类号: C21D1/09

    摘要: The invention relates to edge layer finishing of functional components, and thereby in particular to a method for producing wear-resistant and fatigue-resistant edge layers in titanium alloys, and components produced therewith. The method according to the invention for producing wear-resistant and fatigue-resistant edge layers in titanium alloys by means of laser gas alloying is essentially characterized in that the laser gas alloying is carried out with a reaction gas that contains or releases interstitially soluble elements in the titanium alloy used, whereby the partial pressure of the reaction gas is selected such that the partial pressure remains below the threshold value above which nitride, carbide, or boride titanium phases are produced. The features according to the invention of the wear-resistant and fatigue-resistant component made of a titanium alloy with a gas-alloyed edge layer essentially are that the wear-resistant edge layer is composed of a fine-grain mixture of α- and β-titanium grains with an interstitially dissolved reaction gas, has a surface hardness Hs, measured on the ground surface, of 360 HV0.5≦Hs≦500 HV0.5, or an edge layer microhardness HR, measured on a polished cross section at 0.1 mm below the surface, of 360 HV0.1≦HR≦560 HV0.1, extends over a depth tR of 0.1 mm≦tR

    摘要翻译: 本发明涉及功能部件的边缘层整理,特别涉及一种在钛合金中生产耐磨和耐疲劳边缘层的方法,以及由其制造的部件。 根据本发明的用于通过激光气体合金化在钛合金中生产耐磨和耐疲劳边缘层的方法的基本特征在于,激光气体合金化是用含有或释放空间溶解元素的反应气体进行的 使用钛合金,由此选择反应气体的分压使得分压保持低于阈值以上,在该阈值以上产生氮化物,碳化物或硼化物钛相。 根据本发明的由具有气体合金边缘层的钛合金制成的耐磨和耐疲劳部件的特征基本上是耐磨边缘层由α和β的细晶粒混合物组成 具有间质溶解的反应气体的钛颗粒在地表上测量的表面硬度H S为360HV0.5≤H≤500HV0 或在表面下方0.1mm的抛光横截面上测量的边缘层显微硬度H为360 HV0.1 <= H