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JP2012223815A Composite steel component and method for manufacturing the same 有权
标题翻译：复合钢组件及其制造方法
公开(公告)号：JP2012223815A
公开(公告)日：2012-11-15
申请号：JP2011096434
申请日：2011-04-22
申请人： Aisin Aw Co Ltd , アイシン・エィ・ダブリュ株式会社
发明人： OBAYASHI KOJI , KASAI DAISUKE , TAGUCHI KEITA , OGISO TAKAAKI , SATO TSUTOMU
IPC分类号： B23K9/00 , C21D1/06 , C21D1/09 , C21D1/10 , C21D1/42 , C21D9/40 , C23C8/22 , F16H57/08
CPC分类号： B23K15/0053 , B23K15/0006 , B23K15/0033 , B23K26/282 , B23K26/32 , B23K26/60 , B23K31/02 , B23K2201/34 , B23K2201/35 , B23K2203/04 , B23K2203/50 , C21D1/06 , C21D1/18 , C21D1/25 , C21D2211/002 , C21D2211/008 , C21D2211/009 , C23C8/02 , C23C8/22 , C23C8/80 , F16H57/08
摘要： PROBLEM TO BE SOLVED: To provide a method for manufacturing a composite steel component, which can achieve a sufficient effect of improving the surface hardness of a part that requires wear resistance, which can improve the characteristics of a welded portion more than ever, and which can completely abolish an anti-carburizing process during manufacture.SOLUTION: The method for manufacturing a composite steel component comprises for manufacturing a first steel component: a carburization step of preparing an intermediate product 800 in which an excess portion 826 having the thickness equal to or larger than that of a carburized layer to be formed in a subsequent carburization step has been added to a welding expected portion 825 to be welded, and forming a carburized layer 88 on the surface of the intermediate product; a cooling step of cooling the intermediate product 800 at a cooling rate lower than a cooling rate at which martensitic transformation is caused to a temperature or below at which the structure transformation caused by the cooling is completed; a quenching step of heating a portion to be formed into a carburized quenched portion to an austenitizing range by high-density energy, then cooling the heated portion at a cooling rate equal to or more than the cooling rate at which martensitic transformation is caused; and a cutting step of cutting the welding expected portion 825 to be welded so as to obtain the final desired shape.
摘要翻译：要解决的问题：提供一种复合钢构件的制造方法，其可以获得足以提高需要耐磨性的部件的表面硬度的效果，这可以比以往更好地改善焊接部件的特性，并且可以在制造过程中完全消除抗渗碳过程。解决方案：制造复合钢部件的方法包括制造第一钢部件：制造中间产品800的渗碳步骤，其中厚度等于或大于渗碳层的厚度的多余部分826等于在随后的渗碳步骤中形成的焊接预期部分825被加入待焊接，并在中间产品的表面上形成渗碳层88; 将中间产品800以低于马氏体相变的冷却速度的冷却速度冷却到冷却引起的结构变形的温度以下的冷却工序; 淬火步骤，通过高密度能量将待形成的渗碳淬火部分的部分加热至奥氏体化程度，然后以等于或大于马氏体相变的冷却速度的冷却速度冷却加热部分; 以及切割要焊接的焊接预期部分825以获得最终期望形状的切割步骤。版权所有（C）2013，JPO＆INPIT

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