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    • 4. 发明申请
    • SELF-BORING, THREAD-MILLING SCREW WITH A FLOW FORMING
    • SELFDRILLING和自攻螺钉流动形式SECTION
    • WO1996015378A1
    • 1996-05-23
    • PCT/EP1995004438
    • 1995-11-10
    • EJOT VERBINDUNGSTECHNIK GMBH & CO. KGBIRKELBACH, Ralf
    • EJOT VERBINDUNGSTECHNIK GMBH & CO. KG
    • F16B25/10
    • F16B25/0021F16B25/0078F16B25/0084F16B25/106Y10T408/9093Y10T408/9097
    • A self-boring, thread-milling screw has a boring section (1) with a substantially constant diameter followed by a transition area (15), a flow forming section (2) and a threaded shaft (3). The grooves (7) for chips that start at the boring section (1) extend over at least a substantial part of the flow forming section (2) so that chips may be evacuated even after boring is completed. The transition area (15) between boring section (1) and flow forming section (2) allows a collar-like flow formed section (19) to be smoothly formed at the edge of the bore hole. The collar-like flow formed section (19) is not affected by boring chips, thanks to the grooves (7) for chips that extend into the flow forming section (2). The threaded shaft of the screw can then cut a thread into the flow formed section (19). The cross-section of the flow forming section (2) is substantially polygonal and the rounded corners (12, 13) of the polygonal cross-section project as radial edges over the flow forming section (2) that tapers toward the boring tip.
    • 本发明提供一种自钻孔和螺纹形成螺纹,其具有基本上恒定的直径的钻孔部分(1),与其相邻的过渡区域(15),在其上流动的模具段(2)形成,并且螺纹杆(3)。 从钻探开始部(1)槽纹(7)至少延伸到所述流形成部(2)的主要部分,从而使芯片还可以在钻井完成之后被排出。 钻孔部分之间的过渡区域(15)(1)和倾模具段(2)允许,并与结合延伸到流化的模具段(2),容屑槽(7),在很大程度上不受影响钻屑形成布置在孔边缘的无冲击流动形凸缘状部 (19),其中螺纹可通过螺钉的螺纹杆部根据本发明形成的。 流形成部(2)的横截面是多边形的基本,其中,所述圆角(12,13)上的流动模具部分上的锥形钻孔点作为半径边缘延伸的多边形横截面(2)。
    • 6. 发明申请
    • MILLING TOOL
    • 铣削工具
    • WO1998024581A1
    • 1998-06-11
    • PCT/SE1997001847
    • 1997-11-05
    • SECO TOOLS AB
    • SECO TOOLS ABSTRAND, Bengt
    • B23C05/10
    • B23C5/10B23B31/1107B23B31/1122B23B2240/36B23C2210/03Y10T279/17888Y10T407/1908Y10T408/9093Y10T409/30952
    • The present invention relates to a tool for rotary chip removal machining. The tool comprises a cutting head (10), a retention means (11) and a shank (12). The cutting head (10) is provided with at least one cutting edge (27) which is integral with the cutting head. The cutting head and the retention means comprise overlapping asymmetrical means (15, 19) for mounting of the cutting head to the shank. The cutting head comprises two cutting edges (27), each major cutting edge (27) comprising a substantially straight edge (27A) and a convexly curved preferably part-circular edge (27B). The convex edge (27B) is provided radially outside the substantially straight edge (27A). The invention further relates to a cutting head for the tool.
    • 本发明涉及一种用于旋转切屑去除加工的工具。 该工具包括切割头(10),保持装置(11)和柄(12)。 切割头(10)设置有与切割头成一体的至少一个切割刃(27)。 切割头和保持装置包括用于将切割头安装到柄上的重叠的不对称装置(15,19)。 切割头包括两个切割边缘(27),每个主切割刃(27)包括基本上直的边缘(27A)和凸形弯曲的优选部分圆形边缘(27B)。 凸缘(27B)设置在基本上直的边缘(27A)的径向外侧。 本发明还涉及一种用于该工具的切割头。