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1. 发明专利

JP2002219547A ANVIL FOR FREE-FORGING AND HOT FREE-FORGING METHOD USING THE SAME 失效
公开(公告)号：JP2002219547A
公开(公告)日：2002-08-06
申请号：JP2001011568
申请日：2001-01-19
申请人： SUMITOMO METAL IND
发明人： TAJIMA JUNPEI , NISHIGUCHI MASARU , AMAMOTO MITSUHIRO
IPC分类号： B21J13/06 , B21J5/00
摘要： PROBLEM TO BE SOLVED: To prevent generation of defects such as cracks by giving uniform strain to the surface of a work to prevent it from bringing about a dead metal zone. SOLUTION: A plurality of ridge lines 1 a having a height h stipulated by (1/8)w

2. 发明专利

JPH11320014A DEBURRING WORK METHOD OF CRANK SHAFT FORGING AND ITS CUTTER DIE 失效
公开(公告)号：JPH11320014A
公开(公告)日：1999-11-24
申请号：JP13870898
申请日：1998-05-20
申请人： SUMITOMO METAL IND
发明人： TAMURA KENJI , OHASHI MASAHIRO , NISHIGUCHI MASARU , FUKUYASU TOMIHIKO , YAMAMOTO TOMOAKI
IPC分类号： B23D79/00 , B21J5/02 , B21J13/00 , B21J13/02 , B21K1/08 , F16C3/08
摘要： PROBLEM TO BE SOLVED: To prevent a counter weight from inclination and to obtain a highly precise crank forging by cutting a burr of a part on a crank pin side in advance, successively cutting a burr of a part on a counter crank pin side and thereafter, cutting a burr of other parts. SOLUTION: In the case that a part between counter weights 8a, 8b adjoining and pinching a crank pin 7 is divided into a crank pin side (mesh part) and a counter crank pin side (hatched part), a burr 3a of a crank pin side is cut at first, a burr 3b of a counter crank pin side part is cut and thereafter, a burr 3c of other part is cut. By this method, the inclination of the counter weight 8a, 8b is reduced to improve the product quality. A burr cutting length ratio (L1/L0) is preferably made to >=0.1 to

3. 发明专利

JPH0483811A MANUFACTURE OF POROUS COMBINED MATERIAL 失效
公开(公告)号：JPH0483811A
公开(公告)日：1992-03-17
申请号：JP20061190
申请日：1990-07-27
申请人： SUMITOMO METAL IND
发明人： KUBO TOSHIHIKO , NISHIGUCHI MASARU
IPC分类号： C04B38/00 , B22F3/11 , B22F3/24 , B22F5/00 , B22F7/04
摘要： PURPOSE:To manufacture a combined material being controllable in pore distribution and composition by beforehand introducing pores at the time of sintering a paste-like composition composed of powder material having super plastic characteristic, after that, applying compression load to make the sintered body dense and controlling so as to reduce the porosity. CONSTITUTION:Apatite hydroxide powder and titanium alloy powder are mixed at the prescribed blending ratio and by adding paste agent, this is made to the uniform paste-like composition by wet kneading and 10 layers are laminated on surface of a Ti alloy basic material 1 with nozzle method. Composition in each layer is different in some degree and inclined composition laminated layers 2 are formed. The inclined composition laminated layers 2 are burnt and successively, super plastic work is executed with a press to form the inclined composition laminated layers 2 into inclined composition dense layer 3. Successively, the paste of apatite hydroxide powder is laminated to five layers with the nozzle method and burnt to uniformize the pore distribution in the apatite hydroxide layer 4 in the case of forming the porous apatite hydroxide layer 4 on the inclined composition dense layer 3.

4. 发明专利

JPH03240939A MANUFACTURE OF HIGH DUCTILITY AND HIGH TOUGHNESS TITANIUM ALLOY 失效
公开(公告)号：JPH03240939A
公开(公告)日：1991-10-28
申请号：JP3779090
申请日：1990-02-19
申请人： SUMITOMO METAL IND
发明人： OKADA MINORU , NISHIGUCHI MASARU , SATO YASUHIRO
IPC分类号： C22F1/18 , C22F1/00
摘要： PURPOSE:To manufacture a high ductility and high toughness Ti alloy by subjecting a Near beta type Ti alloy to working in a specified temp. range at a specified draft and strain rate, furthermore subjecting it to wirking in a different temp. range at a different draft and strain rate and thereafter executing soln. treatment in a specified temp. range. CONSTITUTION:A Near beta type Ti alloy is subjected to working in the temp. range of the beta transformation point to (the beta transformation point + 100 deg.C) in such a manner that the draft by single heating is regulated to >=40% and the strain rate is regulated to the range of 10 to 10 /sec. Next, this alloy is furthermore subjected to working at the beta transformation point or below in such a manner that the draft is regulated to 15 to 50% and the strain rate is regulated to the range of 5X10 to 10 /sec and is subjected to soln. treatment in the temp. range of the beta transformation point to (the beta transformation point - 70 deg.C). If required, after the soln. treatment, the alloy is moreover subjected to aging treatment in the temp. range of 400 to 650 deg.C. In this way, the Ti alloy in which strength, ductility and toughness are well-balanced and high value is obtainable in the above all can be manufactured.

5. 发明专利

JPH03226586A PRODUCTION OF MULTILAYERED STRUCTURE BY EXTRUSION 失效
公开(公告)号：JPH03226586A
公开(公告)日：1991-10-07
申请号：JP2033190
申请日：1990-01-30
申请人： SUMITOMO METAL IND
发明人： KUBO TOSHIHIKO , NISHIGUCHI MASARU , NAKADA YOSHIKAZU
IPC分类号： B32B37/15 , B22F3/20 , B22F7/04 , B28B3/20 , C23C24/08
摘要： PURPOSE:To produce a fine and uniform laminated material of intermetallic compound with certainty by successively extruding and laminating plural pasty compositions prepared by uniformly mixing dissimilar fine powders, respectively, on a substrate and solidifying the resulting extruded layers. CONSTITUTION:Plural pasty compositions 16 respectively prepared by uniformly mixing dissimilar fine powders by regulating blending ratio are successively extruded through nozzle holes 12 of nozzles 10 and laminated on a substrate 20. The resulting extruded layers 14 are solidified. By the above procedure, the desired distribution of composition is attained in the direction of lamination. The thicknesses of the extruded layers 14 are regulated to values between micron order and several tens of microns, respectively. The blending ratios of the dissimilar fine powders in the pasty compositions are changed by stages in the direction of the thickness of the multilayered structure. After solidification, the resulting thick-film burnt body is pressurized to obtain more denseness. By this method, the laminated material in which the distribution of composition is intentionally provided can be produced.

6. 发明专利

JPH0289532A ISOTHERMAL FORGING METHOD FOR TI ALLOY 失效
公开(公告)号：JPH0289532A
公开(公告)日：1990-03-29
申请号：JP24372088
申请日：1988-09-27
申请人： SUMITOMO METAL IND
发明人： NAKASE KAZUO , NISHIGUCHI MASARU , SATO YASUHIRO
IPC分类号： B21J5/00
摘要： PURPOSE:To uniformize and stabilize mechanical properties by performing isothermal forging of a blank forged at a forge ratio higher than a specified value at a suitable forge ratio. CONSTITUTION:Stock is forged in advance at a forge ratio higher than 50% of manufactured a blank and this blank is forged isothermally at a suitable forge ratio. In this case, the stock is forged in advance isothermally at a forge ratio higher than 50% because the mechanical properties must be uniformized and stabilized independently of the forge ratio obtained by the isothermal forging performed later. This method can give uniformized and stabilized mechanical properties when products complicated in shape are manufactured by isothermal forging from Ti alloy.

7. 发明专利

JPH01166842A MANUFACTURE OF RADIAL BRANCHED FORGING 失效
公开(公告)号：JPH01166842A
公开(公告)日：1989-06-30
申请号：JP32488187
申请日：1987-12-21
申请人： SUMITOMO METAL IND
发明人： NISHIGUCHI MASARU , FUKUYASU TOMIHIKO , TOTANI YASUTAKA
IPC分类号： B21J5/02 , B21K3/00
摘要： PURPOSE:To reduce a remarkable burr amt. and to improve the yield by forming the forging preform having plural radial branches from a stock by a closed forging method and executing its finish forming by burring forging method. CONSTITUTION:A stock 10 is heated at specified temp., charged into the container formed by upper die 14 and lower die 15, pushed in by its pressurizing by a punch 17 by pressing the upper and lower dies 14, 15 by a hydraulic slide type locking mechanism via a groove 16 and the forged preform having plural radial branches 11 is formed. This forged preform 12 is subjected to finishing by a burring forging method, made a rotor hub forming product 18 and a burr 19 is removed by gas cutting, etc., finally. The forging having the plural radial branches of the rotor hub, etc., for a helicopter is thus manufactured with good yield by reducing its forming load.

8. 发明专利

JPS6355383B2 失效
公开(公告)号：JPS6355383B2
公开(公告)日：1988-11-02
申请号：JP10567482
申请日：1982-06-18
申请人： SUMITOMO METAL IND
发明人： NISHIGUCHI MASARU , FUKUYASU TOMIHIKO , TANI TAKAYUKI , HAMATE HIROYUKI
IPC分类号： B21D41/04 , B21K21/12

9. 发明专利

JPS61289930A FORMING METHOD FOR HOLLOW SPHERICAL ITEM 失效
公开(公告)号：JPS61289930A
公开(公告)日：1986-12-19
申请号：JP13124885
申请日：1985-06-17
申请人： SUMITOMO METAL IND
发明人： FUKUYASU TOMIHIKO , NISHIGUCHI MASARU
IPC分类号： B21D51/08
摘要： PURPOSE:To enable the forming with high efficiency without causing any buckling by squeezing the opening part of a blank with its forging with driving with turning by holding the boss part of a cup shaped blank and then by finishing it. CONSTITUTION:The boss part 31 of a cup shaped blank 3 is held by the knockout 43 provided on the lower die 42 of a rotary forging machine 4. The blank 3 is subjected to a rolling reduction with rotating the upper die 41 around the slant shaft by rotatively driving the cup shaped blank 3 around its center shaft. With this movement a hollow spherical body 5 is formed by subjecting to the squeezing by forging on the opening part 32 of the blank 3. Finally the squeezing part 51 and boss part 52 are finished by machining. A thin product can thus be formed with good yield.

10. 发明专利

JPS60261635A MANUFACTURE OF THIN-WALLED CUP-SHAPED ARTICLE 失效
公开(公告)号：JPS60261635A
公开(公告)日：1985-12-24
申请号：JP11872684
申请日：1984-06-08
申请人： SUMITOMO METAL IND
发明人： FUKUYASU TOMIHIKO , NISHIGUCHI MASARU
IPC分类号： B21J1/02
摘要： PURPOSE:To manufacture a thin-walled cup-shaped article in a good yield and at a low cost by a simple process by forming a plate-shaped rough ground having a necessary thickness distribution by rotational forging, and subsequently, finishing it in a shape of a cup by means of drawing. CONSTITUTION:With regard to a manufacture of a cup-shaped article having an uneven thickness in a section of the axial direction, first of all, rotational forging is executed by using a die 9 for rotating around a vertical shaft A, and a punch 6 for rotating around an inclined shaft B. In this case, the conical surface of the punch 6 is brought into contact with a base material set on the die 9, the axis B is inclined by an angle beta, and a plate-shaped rough ground 12 is formed. Subsequently, the plate-haped rough ground 12 which has been formed is finished to a desired thin cup-shaped article 15 by using a punch 13 of a punch type and a die 14. In this way, the thin cup-shaped article can be manufactured in a good yield and at a low cost by a simple process.

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