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1. 发明专利

JP2002210608A DRILL FOR HEAT-RESISTANT METAL 失效
公开(公告)号：JP2002210608A
公开(公告)日：2002-07-30
申请号：JP2001009002
申请日：2001-01-17
申请人： DIJET IND CO LTD
发明人： NAKADA TOSHIYA , TANAKA AKIHIRO
IPC分类号： B23B51/00
摘要： PROBLEM TO BE SOLVED: To carry out a stable drilling processing for a long period of time by inhibiting an expansion of a chip cut at a web thinning part and appropriately discharging the chip from the web thinning part through a chip discharge groove even in the case where a cutting speed is made faster in a drill for a heat-resistant metal for carrying out a drilling processing on a heat-resistant metal such as a titanium alloy or the like. SOLUTION: In the drill for heat-resistant metal, a plurality of chip discharge grooves 12 are provided on a drill body 11 and a plurality of radial cutting blades 13 are provided at a tip shrunk into a taper shape toward a tip of the drill body. A web thinning 14 is applied from the respective cutting blades toward a rotation center of the drill body. An inclination angle α of the web thinning part against an axis of the drill body is made to 45-65 deg., an angle βof the web thinning part against a rake surface 15 of the cutting blade is made to 70-90 deg. and a length (a) of the web thinning part exceeding from the cutting blade to the rotation center of the drill body is made to a range of 0.4-0.8 mm.

2. 发明专利

JP2000301407A THROW-AWAY TYPE ROLLING AND CUTTING TOOL 失效
公开(公告)号：JP2000301407A
公开(公告)日：2000-10-31
申请号：JP11170699
申请日：1999-04-20
申请人： DIJET IND CO LTD
发明人： TANAKA AKIHIRO , NAKADA TOSHIYA
IPC分类号： B23C5/06
摘要： PROBLEM TO BE SOLVED: To reduce cutting resistance, to suppress the breakage of a cutting edge of a throw-away chip, to reduce chatter at the time of cutting, and to perform satisfactory cutting in a throw-away type rolling and cutting tool attached with a plurality of throw-away chips to an outer peripheral part at a tip of a cutter main body in the peripheral direction at a required interval. SOLUTION: In this throw-away type rolling and cutting tool attached with a plurality of throw-away chips 20 to an outer peripheral part at a tip of a cutter main body 10 in the peripheral direction at a required interval, each throw-away chip is attached to the cutter main body with axial rake α of 30 deg. to 35 deg., radial rake γ of 0 deg. to -10 deg., and cutting edge inclination angle of 20 deg. to 30 deg., and the throw-away chip to which honing is applied with escape angle θ of an escape face of 30 deg. to 40 deg., honing width of 0.15 to 0.25 mm for a cutting edge 22, and honing angle β of 25 deg. or more and less than 30 deg. is used.

3. 发明专利

JP2004237382A Throwaway rotary tool 审中-公开
公开(公告)号：JP2004237382A
公开(公告)日：2004-08-26
申请号：JP2003027965
申请日：2003-02-05
申请人： Dijet Ind Co Ltd , ダイジ▲ェ▼ット工業株式会社
发明人： TANAKA AKIHIRO
IPC分类号： B23C5/22 , B23C5/06 , B23C5/10
摘要： PROBLEM TO BE SOLVED: To rigidly fix a throwaway chip in an installing pocket provided on a tool body via a sheet member in a throwaway rotary tool.
SOLUTION: The throwaway rotary tool includes the throwaway chip 30 mounted in the installing pocket 13 provided on the tool body 10 via the sheet member 20. A holding part 21 for holding the throwaway chip is provided on the sheet member to bring the bottom surface of the chip and the end surface on the axial rear end of the body into contact with the holding part. In addition, the end surface of the chip on the side of the inner periphery of the tool body is brought into contact with the pocket. The chip is fixed to the pocket by a first fastening member 50 from the chip through the holding part. The sheet member is fixed to the pocket by a second fastening member 60 separate from that for the chip.
COPYRIGHT: (C)2004,JPO&NCIPI

4. 发明专利

JP2006297495A Radius end mill 审中-公开
标题翻译： RADIUS终端铣刀
公开(公告)号：JP2006297495A
公开(公告)日：2006-11-02
申请号：JP2005118430
申请日：2005-04-15
申请人： Dijet Ind Co Ltd , ダイジ▲ェ▼ット工業株式会社
发明人： TANAKA AKIHIRO , KINOSHITA AKIYUKI
IPC分类号： B23C5/10
摘要： PROBLEM TO BE SOLVED: To provide a radius end mill which can prevent the breakage of corner cutting edges and the deposition of chips and can appropriately perform a high speed and high feed cutting operation, etc. when a non-ferrous metal, such as aluminum, is cut by the radius end mill.
SOLUTION: In the radius end mill having circular shape corner cutting edges 13 formed between end cutting edges 11 formed on the tip end of a tool body 10 and the tip end portions of peripheral cutting edges 12 formed on the outside periphery of the tool body, the helical angle θ of the peripheral cutting edges is set within the range from 30 to 50°, and rake faces 11a are formed on the end cutting edges by plane gashes having a rake angle α with respect to the axial direction within the range from 0 to 15°, and convex rake faces 13a are formed on the corner cutting edges from their connected points with the peripheral cutting edges toward the connected points with the end cutting edges, and the rake angle β of these rake faces in the direction normal to the corner cutting edges with respect to the surface including the axis of the tool body is set within the range from 5 to 15°.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种可以防止拐角切削刃断裂和切屑沉积的半径立铣刀，并且可以适当地执行高速和高切削操作等，当有色金属，例如铝，由半径立铣刀切割。解决方案：在具有形成在工具主体10的前端上的端部切削刃11和形成在工具主体10的外周上的周边切削刃12的前端部之间形成的圆形角切削刃13的半圆端铣刀中，外周切削刃的螺旋角θ设定在30°〜50°的范围内，前刀面11a在切削刃的端部由相对于轴线方向的前角α的平面形成，从0到15°的范围内，并且在从切割边缘的切割边缘上的凸起前刀面13a与周边切削刃的连接点朝向与端部切削刃的连接点形成，并且这些前刀面的前角β在方向相对于包括工具主体的轴线的表面的角切削刃垂直的角度设定在5°至15°的范围内。版权所有（C）2007，JPO＆INPIT

5. 发明专利

JP2010058240A Edge replacement type cutting tool 有权
标题翻译：边缘替换型切割工具
公开(公告)号：JP2010058240A
公开(公告)日：2010-03-18
申请号：JP2008227908
申请日：2008-09-05
申请人： Dijet Ind Co Ltd , ダイジ▲ェ▼ット工業株式会社
发明人： HAMADA TOMOHIRO , TANAKA AKIHIRO , NAKATA TOSHIYA
IPC分类号： B23C5/10 , B23C5/20
摘要： PROBLEM TO BE SOLVED: To stably perform cutting work achieving excellent finished surfaces even when feed rate in a lateral direction is made to be fast in an edge replacement type cutting tool performing both rough cutting and finish cutting by attaching an insert for rough cutting and an insert for finishing.
SOLUTION: In the edge replacement type cutting tool in which the insert 20 for rough cutting and the insert 30 for finishing are alternately detachably attached to the tool body 10, the relationship between a corner cutting edge 23 for rough cutting in a corner part where an end cutting edge 21 for rough cutting and a peripheral cutting edge 22 for rough cutting in the insert for rough cutting are crossed, and a corner cutting edge 33 for finishing in a corner part where an end cutting edge 31 for finishing in a protrusive circular shape toward an axial tip side and a peripheral cutting edge 32 for finishing in the insert for finishing are crossed, is properly set, and the end cutting edge for finishing is projected further into the axial end side than the end cutting edge for rough cutting.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：即使在进行粗切削和精加工切削的边缘替换型切削刀具中，通过将粗糙度的刀片附着在一起，即使使横向的进给速度快速进行，也能够稳定地进行切削加工，切割和插入用于整理。解决方案：在用于粗切割的刀片20和用于精加工的刀片30可交替地可拆卸地附接到刀具本体10的刀刃更换型切削刀具中，在角部切削的角切削刃23之间的关系用于粗切割的端部切削刃21和用于粗切削的刀片中的粗切削的外周切削刃22交叉的部分，以及用于精加工的端部切削刃31的角部切削刃33，适当地设置朝向轴向前端侧的突出圆形状和用于精加工用刀片的精加工用的周边切削刃32，并且用于精加工的端部切削刃进一步突出到比用于粗糙度的端部切削刃的轴向端侧切割。版权所有（C）2010，JPO＆INPIT

6. 发明专利

JP2000117513A THROW-AWAY TIP AND THROW-AWAY TYPE BALL END MILL 失效
公开(公告)号：JP2000117513A
公开(公告)日：2000-04-25
申请号：JP29645398
申请日：1998-10-19
申请人： DIJET IND CO LTD
发明人： SUMITA TERUYUKI , TANAKA AKIHIRO , NAKADA TOSHIYA
IPC分类号： B23B27/16 , B23C5/10 , B23C5/20
摘要： PROBLEM TO BE SOLVED: To suppress the occurrence of chattering vibration when heavy cutting having high cutting resistance is effected by using a throw-away tips having a cutting edge in which nicks are formed, to perform high-efficient cutting with high cutting precision, to properly part cutting tips and properly discharge the chips, to prevent lowering of the strength of a throw-away tips due to the nicks, and to perform stable cutting throughout a long period. SOLUTION: In a throw-away tip 10 having a cutting edge 13 in which nicks 14 are formed, the nick is formed approximately in a 1/4 spherical state, and in a throw-away type ball end mill, the throw-away tip 10 is mounted on the rounded tip part of an end mill body.

7. 发明专利

JPH10146701A ROTARY CUTTING TOOL 失效
公开(公告)号：JPH10146701A
公开(公告)日：1998-06-02
申请号：JP30605996
申请日：1996-11-18
申请人： DIJET IND CO LTD , TOYOTA MOTOR CORP
发明人： KO NAGAAKI , TANAKA AKIHIRO , SHIMONOSONO MASAKI
IPC分类号： B23B27/00 , B23B27/12
摘要： PROBLEM TO BE SOLVED: To provide a cutting tool which can stably cut a work for a long time. SOLUTION: This cutting tool has a throwaway chip 10 whose flat plane is circular, a holder 20 having a chip seat 21 for holding the throwaway chip 10 and cylindrical shell 22, and a tool body provided with a mounting depression 31 for rotatably holding the shell of the holder 20. The mounting depression 31 is tapered toward the bottom thereof and holding means 40 for rotatably holding the shell of the holder 20 in the inner peripheral surface side of the mounting depression in the state whore in can be moved in the direction of the depth of the depression 31 is interposed between the shell of the holder 20 and the inner circumferential surface of the mounting depression 31 to make a gap between the bottom of the shell of the holder 20 and the bottom of the mounting depression 31 and the holder 20 is urged by urging means 50 to the bottom side of the mounting depression 31.

8. 发明专利

JPH10138031A MILLING TOOL 失效
公开(公告)号：JPH10138031A
公开(公告)日：1998-05-26
申请号：JP29659696
申请日：1996-11-08
申请人： DIJET IND CO LTD
发明人： MIZUKI YOSHITOMO , TANAKA AKIHIRO , KURANISHI TETSUO
IPC分类号： B23C5/10 , B27G13/02
摘要： PROBLEM TO BE SOLVED: To prevent small cutting edges between nicks from being damaged and chatter or the like from being caused by partially overlapping nicks of adjacent cutting edges among plural cutting edges on which nicks are arranged in a milling tool, and arranging wide nicks on the other cutting edges. SOLUTION: An end mill 10 has four strips of cutting edges 11, and in the respective cutting edges 11, nicks 12 are respectively arranged in a plurality through a necessary interval. In this case, positions of the nicks 12 in the first and the third cutting edges 11 are made to coincide with each other, and positiones of the nicks 12 in the second and the fourth cutting edges 11 are made to coincide with each other. In the adjacent cutting edges 11, the nicks 12 are made to respectively exist over a wider range than small cutting edges 11a on the other cutting edges 11 in positions corresponding to the small cutting edges 11a between the nicks 12 in one cutting edges 11, and the nicks 12 in the respective cutting edges 11 are overlapped with each other in a necessary width (d). Therefore, damage of the small cutting edges 11a is restrained, and the occurrence of chatter or the like is restrained.

9. 发明专利

JPH08174311A THROWAWAY TIP 失效
公开(公告)号：JPH08174311A
公开(公告)日：1996-07-09
申请号：JP33611694
申请日：1994-12-21
申请人： DIJET IND CO LTD
发明人： TANAKA AKIHIRO
IPC分类号： B23B27/00 , B23B27/22
摘要： PURPOSE: To dispose easily of chips, and the like, by crushing finely with high efficiency cutting chips from cutting edge on periphery in a portion of chip breaker groove. CONSTITUTION: In a throwaway tip in which at least one of upper/lower faces 11a is circular in form, cutting edge 12 is disposed on the periphery, and a chip breaker groove 13 is formed on the side of inner periphery along cutting edge 12, recess/protrusion are formed in radial direction circumferentially on the side of inner periphery, 13a, and/or on the side of outer periphery, 13b, in the breaker groove. Then, depending on the need, a fixation portion 14b in polygonal form for fixing to a cutting tool proper is disposed at the middle of the upper/lower faces.

10. 发明专利

JPH11114711A MANUFACTURE OF DRILL, AND DRILL 失效
公开(公告)号：JPH11114711A
公开(公告)日：1999-04-27
申请号：JP27676397
申请日：1997-10-09
申请人： DIJET IND CO LTD
发明人： NAKADA TOSHIYA , TANAKA AKIHIRO
IPC分类号： B23B51/00
摘要： PROBLEM TO BE SOLVED: To machine a deep hole with high accuracy by forming a center cutting edge recessed in V-shape by web thinning so as to eliminate a chisel. SOLUTION: At the time of web thinning, web thinning is performed from the rotational center to opposite side parts so as to eliminate a chisel. With this web thinning, a center cutting edge 12 recessed in V-shape is provided at the rotational center part, and parts 11a of main cutting edges 11 on both sides continuous with the center cutting edge 12 are formed in circular arc shape. Centripetal ability is therefore improved, and straight advancing ability at the time of cutting is heightened to attain straight drilling. Chips at the part of the center cutting edge 12 and the parts 11a of the main cutting edges 11 curved by web thinning become small and are appropriately led into a helical flute 13 and discharged, and fusion of the chips is suppressed so as to be able to machine a deep hole with high accuracy.

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