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11. 发明专利

JPS6381876A METHOD OF DRIVING LAMINATED PIEZOELECTRIC ACTUATOR 失效
公开(公告)号：JPS6381876A
公开(公告)日：1988-04-12
申请号：JP22668586
申请日：1986-09-25
申请人： SAITO NAGAO , MITSUBISHI ELECTRIC CORP
发明人： SAITO NAGAO , MORI NAOTAKE
IPC分类号： H01L41/083 , H01L41/08 , H01L41/09 , H02N2/00
摘要： PURPOSE:To facilitate varying a displacement arbitrarily with a constant applied voltage and giving the displacement free from hysteresis by a method wherein the number of piezoelectric porcelain layers to which the voltage is applied is arbitrarily determined by switching means. CONSTITUTION:Switches are connected to piezoelectric porcelain layers in such a manner that the number of the piezoelectric porcelain layers to which a voltage is applied is successively doubled in the order of switches when the respective switches are closed. If some of the switches 3 are closed, the voltage is successively applied to the piezoelectric porcelain layers whose number corresponds to the respective switches. As only the piezoelectric porcelain layers to which the voltage is applied create displacements, an arbitrary total displacement corresponding to the number of layers can be obtained by selecting the switches. For instance, if the switch 3a only is closed, one piezoelectric porcelain layer 1 creates the displacement. If the switches 3a and 3b are closed, three piezoelectric porcelain layers created the displacements. If the switches 3b and 3d are closed, ten piezoelectric porcelain layers create the displacement. Thus, by selecting the number of layers to which the voltage is applied, the total displacement can be determined. Although the number of the piezoelectric porcelain layers to be driven is determined by the manual switches in this case, the switches may be semiconductor switches and automatic digital control may be employed by using a numerical controller.

12. 发明专利

JPH09192937A SURFACE TREATING METHOD BY SUBMERGED ELECTRIC DISCHARGE 失效
公开(公告)号：JPH09192937A
公开(公告)日：1997-07-29
申请号：JP556096
申请日：1996-01-17
申请人： JAPAN RES DEV CORP , SAITO NAGAO , MORI NAOTAKE , MITSUBISHI ELECTRIC CORP
发明人： SAITO NAGAO , MORI NAOTAKE , SUNADA HIRONAO , MAGARA TAKUJI , GOTO AKIHIRO
IPC分类号： B23H9/00 , B23H3/08 , B23K9/04 , C23C14/00 , C23C14/06 , C23C26/00
摘要： PROBLEM TO BE SOLVED: To form a deposited layer having strong adhesive force on the front surface of an iron steel, a cemented alloy, or the like by using a material in which the powder containing metal halide compound powder is formed as a discharge electrode, and generating electric discharge between the electrode and a work piece in liquid in which carbon exists. SOLUTION: A submerged electric discharge deposited front surface by a TiH2 powder electrode is composed of Ti and TiC and bonded to a cemented alloy front surface of a base material without containing any oxide. In the reaction with the base material surface in electric discharge, since the temperature of the cemented front surface instantaneously reaches the boiling point of the material, the deposited Ti and TiC can be diffused and fused to the base material side. The component composition from the boundary surface to the base material to the front surface of the deposited layer is Ti and TiC, and the boundary surface and the front surface are bonded without containing any oxide. This Ti component of the topmost front surface part of the deposited layer is oxidized in the air into TiO2 , however, the inside is Ti with activity.

13. 发明专利

JPH08300227A ELECTRODE FOR ELECTRIC DISCHARGE MACHINING, AND METAL SURFACE TREATING METHOD BY ELECTRIC DISCHARGE 失效
公开(公告)号：JPH08300227A
公开(公告)日：1996-11-19
申请号：JP8905095
申请日：1995-04-14
申请人： JAPAN RES DEV CORP , SAITO NAGAO , MITSUBISHI ELECTRIC CORP , MORI NAOTAKE
发明人： SAITO NAGAO , MORI NAOTAKE , FURUYA KATSUSHI , ISHIGURO TERUO , OIZUMI TOSHIRO , MAGARA TAKUJI
IPC分类号： B23H9/00 , B23H1/04 , C25D11/00
摘要： PURPOSE: To eliminate the breakableness of a green compact electrode and also apply secondary machining to an article to be treated through only changing an electric discharge electric condition, by forming an electric discharge electrode with compression-molding carbide such as WC and Ti, boride such as TiB2 and ZrB2, and nitride such as TiN and ZrN to perform temporary sintering at a temperature of sintering temperature or lower to form an electrode for electric discharge machining. CONSTITUTION: A simple substance or a mixture of two or more kinds, cited below, is compression-molded; carbide such as WC, TiC, TaC, ZrC, SiC, and VC; boride such as TiB2 and ZrB2, and nitride such as TiN and ZrN. Then, the compression molded body is temporarily sintered at a temperature of sintering temperature or lower to form an electric discharge electrode. In this electrode, the hardness of a surface layer is increased when machining is made by a plus electrode than by a minus electrode. This reason is estimated because of the fact that the electrode 1 in plus causes an article to be treated into minus to increase an electrode discharge trace current density to obtain the resulted article to be treated reheated at a high sintering temperature. Resultingly the breakableness of the electrode 1 is eliminated even in electric discharge machining having nonconsumptiveness.

14. 发明专利

JPH02198673A INSTRUMENT FOR EXPANDING AMPLITUDE OF ULTRASONIC VIBRATION 失效
公开(公告)号：JPH02198673A
公开(公告)日：1990-08-07
申请号：JP2034089
申请日：1989-01-30
申请人： SAITO NAGAO , MITSUBISHI ELECTRIC CORP
发明人： SAITO NAGAO , MORI NAOTAKE , TSUTSUMI KIYOHIDE
IPC分类号： B23B1/00 , B06B3/00
摘要： PURPOSE:To shorten the overall length of an ultrasonic vibration system by inserting an ultrasonic vibrator into the hollow part of the instrument for expanding the amplitude of ultrasonic vibration and fixing the same to the bottom part thereof. CONSTITUTION:The vertical vibration generated by the ultrasonic vibrator 1 is transmitted to a horn 2 and the amplitude thereof is expanded by the horn 2. The ultrasonic vibrator 1 and the horn 2 form the vertical resonance system over the entire part and the expansion of the amplitude is generated when the inertia force of the vertical vibration is balanced by a change in the sectional area in the axial direction of the horn 2. The overall length of the ultrasonic vibration system is shortened in this way.

15. 发明专利

JPH01234144A ULTRASONIC MACHINING VIBRATOR 失效
公开(公告)号：JPH01234144A
公开(公告)日：1989-09-19
申请号：JP6076088
申请日：1988-03-15
申请人： SAITO NAGAO , MITSUBISHI ELECTRIC CORP
发明人： SAITO NAGAO , MORI NAOTAKE , ARAI SHINJI , TSUTSUMI KIYOHIDE
IPC分类号： B23H7/26 , B24B1/04
摘要： PURPOSE:To improve machining speed by integrally forming a vibration converting element and amplitude enlarging means to increase the rigidity of ultrasonic vibrating means and reduce the size thereof and to apply vibrating motion to a vibrating tool. CONSTITUTION:When a piezoelectric element PZT 2 is urged by natural frequency which an ultrasonic vibrator 15 has, expansible ultrasonic vibration is started round the vicinity of a node. As upper and lower flanges 20, 21 are vibrated with ultrasonic vibration frequency, coefficient of friction is remarkably lowered so that the flanges are operated very smoothly against air pressure of air feed and discharge ports 13, 18. Since a cylinder is supported at two places of the flanges 20, 21, if the cylinder is firmly fixed, high transverse rigidity can be obtained. Secondly, when machining pressure is applied to change the relative position of the cylinder and the piston, a position sensor is operated to automatically control a flow valve at an air pressure feed and discharge port 18 or at an air pressure feed and discharge port 13, whereby the relative position can be kept at a fixed value while machining pressure being retained.

16. 发明专利

JPS62224711A FITTING METHOD 失效
公开(公告)号：JPS62224711A
公开(公告)日：1987-10-02
申请号：JP6638886
申请日：1986-03-25
申请人： SAITO NAGAO , MITSUBISHI ELECTRIC CORP
发明人： SAITO NAGAO , MORI NAOTAKE
IPC分类号： F16B4/00 , B23P19/02

17. 发明专利

JPH08257841A DEVICE AND METHOD FOR REFORMING DISCHARGE SURFACE 失效
公开(公告)号：JPH08257841A
公开(公告)日：1996-10-08
申请号：JP6377095
申请日：1995-03-23
申请人： JAPAN RES DEV CORP , SAITO NAGAO , MORI NAOTAKE , MITSUBISHI ELECTRIC CORP
发明人： SAITO NAGAO , MORI NAOTAKE , MAGARA TAKUJI , GOTO AKIHIRO
IPC分类号： B23H9/00 , B23H1/00 , C23C26/00
摘要： PURPOSE: To markedly improve wear resistance and corrosion resistance of a workpiece by performing die sinking electric discharge machining by a formed electrode and surface treatment by the same device, also forming an electric discharge surface treating layer uniform and of good quality even when machined in a complicated shape. CONSTITUTION: A device comprises a formed electrode 2 performing transfer machining of a product shape, simple shaped electrode 3 molding a surface treatment material of tungsten carbide, TiN, TiC, etc., into a simple shape of columnar, prismatic electrode, etc., and a locus moving control means of controlling machining so as to copy a surface of a machining part of a workpiece 1 by the simple shaped electrode 3. Performing surface treating to a machining part of the workpiece 1 by the simple shaped electrode 3 formed of surface treating material, next performing remelting machining to a surface treated layer A formed by the simple shaped electrode 3 by the formed electrode 2 of performing transfer machining of product shape, a reformed layer is formed in the workpiece 1.

18. 发明专利

JPH01234128A ENGAGING METHOD 失效
公开(公告)号：JPH01234128A
公开(公告)日：1989-09-19
申请号：JP6075988
申请日：1988-03-15
申请人： SAITO NAGAO , MITSUBISHI ELECTRIC CORP
发明人： SAITO NAGAO , MORI NAOTAKE
IPC分类号： B23P19/02 , B25B27/02
摘要： PURPOSE:To easily accomplish engagement with a very small gap or negative gap by applying continuous ultrasonic vibration to one or both of substances engaging with each other until they reach a certain depth of engagement, and then applying intermittent ultrasonic vibration to them to be engaged with each other. CONSTITUTION:An insertion pin 42 is installed on a cross head, and inserted and engaged therewith by pressing force produced by a lowering the pin 42 to a hole part 43. In this case, ultrasonic vibration is transmitted to the pin 42 at the forward end of a honing head, so that while vibration is transmitted to the hole part 43, insertion of the pin 42 is proceeded. The pin 42 is vibrated with a frequency composed of resonance frequency of an ultrasonic vibrator and natural frequency of a vibrated body. The vibrating pin 42 has the maximum amplitude at the forward end portion, frictional force is remarkably reduced at a contacting surface between the pin and a counterpart so that the contacting surface is smooth. On the other hand, vibration for repeatedly causing the pin 42 to the expanded and indented in the radial direction is also generated, so that the pin can be easily fitted therein with small insertion hole by temporary action of expanding a clearance in the engagement state.

19. 发明专利

JPS6390398A PRESSURIZING METHOD 失效
公开(公告)号：JPS6390398A
公开(公告)日：1988-04-21
申请号：JP23261486
申请日：1986-09-30
申请人： SAITO NAGAO , MITSUBISHI ELECTRIC CORP
发明人： SAITO NAGAO , MORI NAOTAKE , TSUTSUMI KIYOHIDE , ARAI SHINJI
IPC分类号： B30B5/00 , B28B3/00 , B30B11/00
摘要： PURPOSE:To obtain a static high pressure with a simple device by obstracting the cubical expansion of a water at the time of its solidification by a pressure container in the state of putting a water around the body to be pressed put inside the container. CONSTITUTION:The body 3 to be pressed put in a rubber bag 8 is inputted into the main body 1 of the pressure container in which a water 7 is poured and the pressure container cover 4 composing the pressure container is fixed to the container main body 1 attachably by a bolt 9 together therewith. In this state, the container main body 1 is put into a freezing chamber, the whole body is cooled and the water 7 is iced with its solidification. The caused pressure due to the cubical expansion at the water solidifying time is equally applied on the outside of the body 3 to be pressed, the container main body 1 and the inner side of the cover 4 and the body 3 to be pressed is isotropically formed with its pressurization. An isotropical, static and high pressure is thus obtd., with a simple device inexpensively and yet safely.

20. 发明专利

JPH10337617A DISCHARGE SURFACE TREATMENT METHOD AND EQUIPMENT THEREFOR 失效
公开(公告)号：JPH10337617A
公开(公告)日：1998-12-22
申请号：JP14689397
申请日：1997-06-04
申请人： JAPAN RES DEV CORP , SAITO NAGAO , MORI NAOTAKE , MITSUBISHI ELECTRIC CORP
发明人： SAITO NAGAO , MORI NAOTAKE , TSUNEKAWA YOSHIKI , SHIMAMOTO KOHEI , GOTO AKIHIRO , MAGARA TAKUJI , IMAI YOSHIHITO , MIYAKE HIDETAKA
IPC分类号： B23H9/00 , B23H1/00 , C23C26/00
摘要： PROBLEM TO BE SOLVED: To form a good covering layer regardless of a quality of material to be treated, a steel product or a cemented carbide. SOLUTION: Voltage is applied between a solid consisting of a reformed material containing its precursor or a green compact electrode 104 and a metal, a material to be treated, including an end mill 101. Discharge is evolved between the electrode and the metal to form a covering layer on the surface of the material, the material to be treated, including the end mill 101. In the above discharge surface treatment method, the covering layer is formed on the surface of the material to be treated, including the end mill 101. Nitriding is then applied to the covering layer in a nitriding tank 109. Thus, a good hard layer is formed on the surface of the material to be treated, including the end mill 101 regardless of the raw material of the material to be treated, a steel product or a cemented carbide.

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