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1. 发明专利

JPS5959308A Extremely-hard cutting tool 失效
标题翻译：极致切割工具
公开(公告)号：JPS5959308A
公开(公告)日：1984-04-05
申请号：JP16826582
申请日：1982-09-29
申请人： Nippon Oil & Fats Co Ltd , Shoei Kogyo Kk
发明人： ARAKI MASATOU , HATSUTORI YUKIYASU
IPC分类号： B23C5/10 , B23B51/00 , B23B51/02
CPC分类号： B23B51/02 , B23B2251/18
摘要： PURPOSE:To prevent breakage of abrasion of a corner section by forming, in a circular arc or a similar curve, portions linked from a cutting edge section to a chisel section of a rotary tool formed by lamination-sintering, with a sintered- hard alloy, a plate-like extremely-hard sintered material containing highly-dense phase boron nitride, etc. CONSTITUTION:A three-layer laminated sintering material with a plate-like extremely-hard sintering material 1 stuck between two plate-like extremely-hard alloys 2, 2' is fitted to the tip of a rotary tool 9 with silver solder 6, 7, part of two sheets of plate-like extremely-hard alloys 2, 2' is removed so as to be symmetrical against the center axis of the rotary tool 9, and part of the plate-like extremely-hard sintering material 1 is exposed to form cutting edge sections 3, 3' and a rake face 10 of the rotary tool 9, then portions where the cutting edge sections 3, 3' and a chisel section 8 are intersected together are formed in a circular or similar shape. Portions 4a, 4a' where the cutting edge sections 3, 3' are linked in a smooth curve near a circular arc. In there is any corner section, its portion generates breakage and becomes a starting point of abrasion.
摘要翻译：目的：通过在圆弧或类似曲线中形成从切割边缘部分到通过层压烧结形成的旋转工具的凿部分与烧结硬质合金的部分，防止拐角部分的磨损破裂，含有高密度氮化硼等的板状极硬烧结材料。构成：将具有板状极硬烧结材料1的三层层压烧结材料粘贴在两片板状极硬合金之间 2“2”用银焊料6,7装配到旋转工具9的末端，两片板状极硬合金2,2'的一部分被去除，以相对于中心轴线对称旋转工具9和板状极硬烧结材料1的一部分露出来形成旋转工具9的切削刃部3,3'和前刀面10，然后将切削刃部3,3' 并且凿子部分8相交在一起形成为圆形或相似的形状。切割边缘部分3,3'以接近圆弧的平滑曲线连接的部分4a，4a'。在任何角落部分，其部分产生断裂并成为磨损的起点。

2. 发明专利

JPS5766805A Cutting tool of high hardness 失效
标题翻译：高硬度切割工具
公开(公告)号：JPS5766805A
公开(公告)日：1982-04-23
申请号：JP13865980
申请日：1980-10-06
申请人： Nippon Oil & Fats Co Ltd , Shoei Kogyo Kk
发明人： ARAKI MASATOU , MURAMATSU TOSHIO , HATSUTORI YUKIYASU
IPC分类号： B22F7/00 , B22F7/06 , B23B51/00 , B23B51/02 , B32B15/04 , B32B18/00
CPC分类号： B23B51/02 , B22F7/06 , B23B2222/16 , B23B2226/125 , B23B2226/31 , B23B2240/08 , B23B2251/18
摘要： PURPOSE: To enable adequate cutting under heavy load, by conjoining to the tip of a rotary tool a three-layer sintered element made by bonding a high-hardnesses sintered plate between two cermet plates.
CONSTITUTION: A sintered piece 1 containing boron nitride at high density is sintered between two cermet plates 8, 9 so that they are conjoined together. When the three-layer sintered element is utilized as the tip of a drill, the sintered element is brazed with silver solder in the groove of the cutting part of the drill so that the cermets 8, 9 are located symmetrically to each other with regard to the rotation. The cermets 8, 9 of the sintered element tip are partly removed to provide rake faces on the drill. According to this constitution, load is reduced by half in comparison with a conventional tool with two tips separately brazed. For that reason, cutting under heavy load is enabled.
COPYRIGHT: (C)1982,JPO&Japio
摘要翻译：目的：为了在重载下进行适当的切割，通过与旋转工具的尖端相结合，在两个金属陶瓷板之间粘合高硬度烧结板制成的三层烧结元件。构成：将含有高密度氮化硼的烧结片1烧结在两个金属陶瓷板8,9之间，使它们结合在一起。当三层烧结元件用作钻头的尖端时，烧结元件在钻头的切割部分的凹槽中用银焊料钎焊，使得金属陶瓷8,9相对于旋转。部分地去除烧结元件尖端的金属陶瓷8,9以在钻头上提供前刀面。根据这种构造，与具有分别钎焊的两个尖端的常规工具相比，负载减少了一半。因此，能够在重载下进行切割。

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