发明名称 Process for producing a composite metal body
摘要 The composite body is produced in a casting mould (4) from a hard-metal piece (1) having a dovetailed undercut (2) and cast metal. The hard-metal piece (1) inserted in the casting mould (4) is surrounded with liquid cast metal (3) in such a way that at least its region having the dovetailed undercut (2) is covered with liquid cast metal (3). The hard-metal piece (1) is put under compressive stress as a result of the solidification rate of the cast metal (3) after the casting. When the cast metal (3) has solidified, the hard-metal piece (1) is anchored unreleasably in the latter. The process takes place by means of relatively simple casting; at the same time, the production costs are kept low. <IMAGE>
申请公布号 CH650956(A5) 申请公布日期 1985.08.30
申请号 CH19820004788 申请日期 1982.08.10
申请人 VEREINIGTE DRAHTWERKE AG 发明人 HOFER, BEAT
分类号 B22D19/04;(IPC1-7):B22D19/04 主分类号 B22D19/04
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