Wear-resistant and shock-resistant tools and metho
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专利名称：Wear-resistant and shock-resistant tools and method of manufacture thereof
发明人：Gunzner, Fred G.
申请号：EP82306544.6
申请日：19821209
公开号：EP0106929B1
公开日：
19870916
专利内容由知识产权出版社提供
摘要：Wear-resistant and shock-resistant tools (14) are constructed by preforming carbide-containing working parts (10) of high wear resistance and hardness and attaching them to a softer base metal (12) of the tool by means of a highly shock-resistant steel-to-steel fusion weld. The working part (10) is preformed by powdered metallurgy techniques utilizing steel powders having carbide-forming constituents therein which form carbides along the grain boundaries of the steel uniformly throughout the working part as a result of sintering of the compressed powders. Thereafter the fusion welding process renders the carbide structure of the working part nonuniform for optimum shock resistance, without reducing the effective wear resistance thereof, while also forming a highly shock-resistant joint between the working part (10) and the base metal (12) of the tool.
申请人：ACU-EDGE, INC.
地址：220 Brooks Street US-Worcester, Massachusetts 01606 US
国籍：US
代理机构：Skerrett, John Norton Haigh
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