发明公开
EP1606084A4 COMPOSITE UTILITY BLADE, AND METHOD OF MAKING SUCH A BLADE
审中-公开
VERBUND-ALLZWECKMESSER UND VERFAHREN ZUR HERSTELLUNG EINES SOLCHEN MESSERS
- 专利标题： COMPOSITE UTILITY BLADE, AND METHOD OF MAKING SUCH A BLADE
- 专利标题（中）： VERBUND-ALLZWECKMESSER UND VERFAHREN ZUR HERSTELLUNG EINES SOLCHEN MESSERS
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申请号： EP04717441申请日： 2004-03-04
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公开(公告)号： EP1606084A4公开(公告)日： 2006-05-31
- 发明人: KORB WILLIAM B , DOUGLAS BRIAN K , SUKADHARE DAYANANDA , SCOTT GARY F
- 申请人： IRWIN IND TOOL CO
- 专利权人： IRWIN IND TOOL CO
- 当前专利权人： IRWIN IND TOOL CO
- 优先权： US45198503 2003-03-05
- 主分类号： B26B21/58
- IPC分类号： B26B21/58 ; B21K11/00 ; B23P15/40 ; B26B9/00 ; B26D1/00
摘要：
A composite utility blade and method of making such a blade (10) involves butt joining a high speed or tool steel wire (44) to a front edge of an alloy steel backing strip (34). The wire (44) defines a predetermined cross-sectional shape that substantially corresponds to the cross-sectional shape of the cutting edge (14) of the blade (10). The wire (44) is electron beam welded to the backing strip (34) to form a composite strip (46) defining a first metal portion (20) formed by the alloy steel backing strip (34), a second metal portion (22) formed by the high speed or tool steel wire (44), and a weld region (28) joining the first and second metal portions (20,22). The cutting edge (14) may be coated with AlTiN, TiN, or an inner coating of AITiN and an outer coating of TiN.
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