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1.发明公开MULTIPLE GRADE CEMENTED CARBIDE INSERTS FOR METAL WORKING AND METHOD OF MAKING THE SAME 审中-公开MULTISTAGESINTERKARBIDEINSÄTZE金属加工及其制备方法
公开(公告)号：EP1339515A1
公开(公告)日：2003-09-03
申请号：EP01983878.8
申请日：2001-11-08
申请人： SANDVIK AKTIEBOLAG
CPC分类号： B22F7/06 , B22F2005/001 , B30B15/022 , B30B15/302
摘要： A cemented carbide insert of a first grade has at least one cutting point consisting of a cemented carbide of a second grade and with an uneven transition zone between the cemented carbide grades. A method of making a cemented carbide insert involves filling a die with a first grade powder and placing on top of it, in a corner, a second grade powder, compacting and sintering.
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公开(公告)号：EP0951576B1
公开(公告)日：2003-09-03
申请号：EP97952151.5
申请日：1997-12-18
CPC分类号： B22F7/06 , B22F2005/001 , C22C29/08 , Y10T407/27 , Y10T428/24942 , Y10T428/252 , Y10T428/263
摘要： According to the present invention there is now provided a cemented carbide drill/endmill blank consisting of a core and a surrounding tube with improved technological properties. The difference in Co-content between the core and tube is 1-10 wt.% units and the cubic carbide content is 8-20 wt.% in the tube and 0.5-2 wt.% in the core. The invention also relates to the method of making said cemented carbide drill/end mill blank.
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公开(公告)号：EP0951576A1
公开(公告)日：1999-10-27
申请号：EP97952151.0
申请日：1997-12-18
CPC分类号： B22F7/06 , B22F2005/001 , C22C29/08 , Y10T407/27 , Y10T428/24942 , Y10T428/252 , Y10T428/263
摘要： According to the present invention there is now provided a cemented carbide drill/endmill blank consisting of a core and a surrounding tube with improved technological properties. The difference in Co-content between the core and tube is 1-10 wt.% units and the cubic carbide content is 8-20 wt.% in the tube and 0.5-2 wt.% in the core. The invention also relates to the method of making said cemented carbide drill/end mill blank.
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