发明名称 |
TOOL, AND A METHOD AND DEVICE FOR ITS MANUFACTURING |
摘要 |
A rotary tool such as a helix drill and an end mill for example, is manufactured by forming a blank by an extrusion process, and then sintering the blank. During the extrusion, a mixture is passed through a die which provides a cylindrical shape to the outer peripheral surface of the mixture. A plurality of jaws are disposed downstream of the die for conducting the mixture. Each jaw includes a helical ridge for engaging the outer surface of the extrudate to cause a helical groove to be formed therein which constitutes a chip flute in the tool. During the extrusion, the jaws are moved away from the mixture to terminate formation of the chip groove, whereby a shank portion of the tool is formed. |
申请公布号 |
EP1227901(A1) |
申请公布日期 |
2002.08.07 |
申请号 |
EP20000937484 |
申请日期 |
2000.05.30 |
申请人 |
SECO TOOLS AB (PUBL) |
发明人 |
PUIDE, MATTIAS;BRUHN, JOHNNY;GROENKVIST, MIKAEL |
分类号 |
B21C23/01;B21C23/14;B22F3/20;B22F3/22;B22F5/10;B22F7/00;B23B51/06;B23P15/32;(IPC1-7):B21C23/14 |
主分类号 |
B21C23/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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