JP5669128B2 - 転動疲労寿命に優れた機械部品の製造方法 - Google Patents
転動疲労寿命に優れた機械部品の製造方法 Download PDFInfo
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- JP5669128B2 JP5669128B2 JP2010185927A JP2010185927A JP5669128B2 JP 5669128 B2 JP5669128 B2 JP 5669128B2 JP 2010185927 A JP2010185927 A JP 2010185927A JP 2010185927 A JP2010185927 A JP 2010185927A JP 5669128 B2 JP5669128 B2 JP 5669128B2
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- 238000005096 rolling process Methods 0.000 title claims description 87
- 238000004519 manufacturing process Methods 0.000 title claims description 23
- 239000000463 material Substances 0.000 claims description 79
- 229910000831 Steel Inorganic materials 0.000 claims description 77
- 239000010959 steel Substances 0.000 claims description 77
- 238000010273 cold forging Methods 0.000 claims description 50
- 238000000034 method Methods 0.000 claims description 24
- 230000002706 hydrostatic effect Effects 0.000 claims description 15
- 238000005242 forging Methods 0.000 claims description 11
- 230000002829 reductive effect Effects 0.000 claims description 11
- 238000000926 separation method Methods 0.000 claims description 4
- 230000032798 delamination Effects 0.000 claims description 2
- 238000012360 testing method Methods 0.000 description 11
- 238000012545 processing Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 7
- 238000011156 evaluation Methods 0.000 description 5
- 239000002436 steel type Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005098 hot rolling Methods 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000003749 cleanliness Effects 0.000 description 3
- 238000009749 continuous casting Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005097 cold rolling Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000007872 degassing Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000009849 vacuum degassing Methods 0.000 description 2
- 229910000746 Structural steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000000445 field-emission scanning electron microscopy Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 102200082816 rs34868397 Human genes 0.000 description 1
- 102220097517 rs876659265 Human genes 0.000 description 1
- 238000000992 sputter etching Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
- F16C33/64—Special methods of manufacture
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
- B21J5/08—Upsetting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/04—Making machine elements ball-races or sliding bearing races
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K21/00—Making hollow articles not covered by a single preceding sub-group
- B21K21/16—Remodelling hollow bodies with respect to the shape of the cross-section
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K23/00—Making other articles
- B21K23/04—Making other articles flanged articles
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/18—Hardening; Quenching with or without subsequent tempering
- C21D1/25—Hardening, combined with annealing between 300 degrees Celsius and 600 degrees Celsius, i.e. heat refining ("Vergüten")
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/10—Modifying the physical properties of iron or steel by deformation by cold working of the whole cross-section, e.g. of concrete reinforcing bars
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/10—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of tubular bodies
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/40—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for rings; for bearing races
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C19/00—Bearings with rolling contact, for exclusively rotary movement
- F16C19/02—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows
- F16C19/14—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load
- F16C19/18—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls
- F16C19/181—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact
- F16C19/183—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles
- F16C19/184—Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with two or more rows of balls with angular contact with two rows at opposite angles in O-arrangement
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2240/00—Specified values or numerical ranges of parameters; Relations between them
- F16C2240/40—Linear dimensions, e.g. length, radius, thickness, gap
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- General Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Forging (AREA)
- Rolling Contact Bearings (AREA)
Description
この先端になるにつれてスムーズに縮径された上パンチ及び下パンチで少なくとも1000MPaの静水圧応力の作用によって、鋼中の非金属介在物と母相である鋼との界面に存在する空隙が閉鎖する方向へ向かうこととなり、非金属介在物の部分を破壊起点とする転動疲労によるはく離を回避した転動疲労寿命に優れた機械部品を製造することができる。
冷間鍛造時に少なくとも1000MPaの静水圧応力を作用させて冷間鍛造に供するリング状加工母材の内径面に転動面を形成することに加えて、環状上パンチ及び環状下パンチによりリング状加工母材の上下端面に静水圧応力を作用して加圧することによって、鋼中に含有する非金属介在物と母相である鋼との界面に存在する空隙を閉鎖して、非金属介在物の部分を破壊起点とする転動疲労によるはく離を回避した転動疲労寿命に優れた機械部品を製造することができる。
なお、表で示していないが、熱間鍛造により製造しても転動疲労寿命が向上する効果も確認される。しかし、本発明の冷間鍛造による方が、鋼材温度を上昇させないという点から優位である。
2 リング母材
2a 内径
2b 上端面
2c 下端面
2d 突出部
3 金型
3a 上パンチ
3b 環状上パンチ
3c 下パンチ
3d 環状下パンチ
4 空隙
5 非金属介在物
6 転動部
7 機械部品
Claims (4)
- 冷間鍛造に供するリング状加工母材の内径に転動部品が転動する転動部を有する機械部品の製造において、転動部を形成しようとする冷間鍛造に供するリング状加工母材の内径面に先端になるにつれてスムーズに縮径された上パンチ及び下パンチにより少なくとも1000MPaの静水圧応力を作用させて冷間鍛造することにより、冷間鍛造に供するリング状加工母材の内径面に転動部品が転動する転動部を形成して、該転動部以外の冷間鍛造に供するリング状加工母材の内径を拡径することを特徴とする非金属介在物の部分を破壊起点とする転動疲労によるはく離を回避した転動疲労寿命に優れた転動部を有するリング状の機械部品の製造方法。
- 請求項1に記載した冷間鍛造に供するリング状加工母材は鋼管であることを特徴とする非金属介在物の部分を破壊起点とする転動疲労によるはく離を回避した転動疲労寿命に優れた転動部を有するリング状の機械部品の製造方法。
- 請求項1に記載した冷間鍛造に供するリング状加工母材は熱間鍛造で製作したリングであることを特徴とする非金属介在物の部分を破壊起点とする転動疲労によるはく離を回避した転動疲労寿命に優れた転動部を有するリング状の機械部品の製造方法。
- 転動部を形成しようとする冷間鍛造に供するリング状加工母材の内径面に作用させる請求項1における少なくとも1000MPaである静水圧応力に加えて、上パンチ及び下パンチの周囲で独立して可動しうる環状上パンチ及び環状下パンチによりリング状加工母材の上下端面に静水圧応力を作用して加圧することを特徴とする請求項1に記載の非金属介在物の部分を破壊起点とする転動疲労によるはく離を回避した転動疲労寿命に優れた転動部を有するリング状の機械部品の製造方法。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010185927A JP5669128B2 (ja) | 2009-08-26 | 2010-08-23 | 転動疲労寿命に優れた機械部品の製造方法 |
US13/390,793 US20120210765A1 (en) | 2009-08-26 | 2010-08-24 | Method for Manufacturing Mechanical Part Excellent in Rolling Fatigue Life |
PCT/JP2010/064255 WO2011024792A1 (ja) | 2009-08-26 | 2010-08-24 | 転動疲労寿命に優れた機械部品の製造方法 |
KR1020127003897A KR20120090942A (ko) | 2009-08-26 | 2010-08-24 | 전동 피로 수명이 뛰어난 기계 부품의 제조 방법 |
CN201080037139.3A CN102574196B (zh) | 2009-08-26 | 2010-08-24 | 滚动疲劳寿命优异的机械部件的制造方法 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009194962 | 2009-08-26 | ||
JP2009194962 | 2009-08-26 | ||
JP2010185927A JP5669128B2 (ja) | 2009-08-26 | 2010-08-23 | 転動疲労寿命に優れた機械部品の製造方法 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011067868A JP2011067868A (ja) | 2011-04-07 |
JP2011067868A5 JP2011067868A5 (ja) | 2014-02-27 |
JP5669128B2 true JP5669128B2 (ja) | 2015-02-12 |
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ID=43627897
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JP2010185927A Active JP5669128B2 (ja) | 2009-08-26 | 2010-08-23 | 転動疲労寿命に優れた機械部品の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20120210765A1 (ja) |
JP (1) | JP5669128B2 (ja) |
KR (1) | KR20120090942A (ja) |
CN (1) | CN102574196B (ja) |
WO (1) | WO2011024792A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022201014A1 (en) * | 2021-03-24 | 2022-09-29 | Tata Steel Limited | An apparatus for thickening a tube at its intermediate portion |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5896713B2 (ja) * | 2011-12-09 | 2016-03-30 | 山陽特殊製鋼株式会社 | 転動疲労寿命に優れた機械部品の製造方法 |
JP6376725B2 (ja) * | 2012-08-10 | 2018-08-22 | 山陽特殊製鋼株式会社 | 転がり疲労寿命に優れた鋼部材 |
US10208798B2 (en) | 2013-09-05 | 2019-02-19 | Ntn Corporation | Rolling device |
JP7073193B2 (ja) * | 2017-11-24 | 2022-05-23 | Ntn株式会社 | 転動部品、軸受およびそれらの製造方法 |
WO2019103039A1 (ja) * | 2017-11-24 | 2019-05-31 | Ntn株式会社 | 転動部品、軸受およびそれらの製造方法 |
JP7240815B2 (ja) * | 2018-03-22 | 2023-03-16 | Ntn株式会社 | 転動部品の製造方法および軸受の製造方法 |
DE102021205780A1 (de) * | 2021-06-08 | 2022-12-08 | Aktiebolaget Skf | Geschmiedeter Außenring |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3286498A (en) * | 1964-02-03 | 1966-11-22 | Gen Electric | Compressive forming |
JP2755716B2 (ja) * | 1989-08-28 | 1998-05-25 | エヌティエヌ株式会社 | 複列玉軸受外輪素形材の鍛造方法 |
CN1079715C (zh) * | 1998-06-22 | 2002-02-27 | 星龙金属株式会社 | 摆板式压缩机承接板的制造方法 |
US20020162371A1 (en) * | 2001-05-01 | 2002-11-07 | Peter Hamstra | Method of pressure-ram-forming metal containers and the like |
JP4639089B2 (ja) * | 2004-01-07 | 2011-02-23 | 山陽特殊製鋼株式会社 | 中空金属管を素材とする内周突起付きリングの製造方法 |
US20080089631A1 (en) * | 2004-09-22 | 2008-04-17 | Nsk Ltd | Raceway Ring for Radial Ball Bearing and Manufacturing Method Thereof, and Manufacturing Method of High Accurate Ring and Manufacturing Apparatus Thereof |
JPWO2006126622A1 (ja) * | 2005-05-26 | 2008-12-25 | 昭和電工株式会社 | 孔開け加工方法及び孔開け加工装置 |
EP2044228B1 (en) * | 2006-06-29 | 2010-05-19 | Tenaris Connections AG | Seamless precision steel tubes with improved isotropic toughness at low temperature for hydraulic cylinders and process for obtaining the same |
JP4984910B2 (ja) * | 2007-01-22 | 2012-07-25 | 日本精工株式会社 | 軌道輪部材の製造方法 |
-
2010
- 2010-08-23 JP JP2010185927A patent/JP5669128B2/ja active Active
- 2010-08-24 US US13/390,793 patent/US20120210765A1/en not_active Abandoned
- 2010-08-24 CN CN201080037139.3A patent/CN102574196B/zh active Active
- 2010-08-24 WO PCT/JP2010/064255 patent/WO2011024792A1/ja active Application Filing
- 2010-08-24 KR KR1020127003897A patent/KR20120090942A/ko active Search and Examination
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022201014A1 (en) * | 2021-03-24 | 2022-09-29 | Tata Steel Limited | An apparatus for thickening a tube at its intermediate portion |
Also Published As
Publication number | Publication date |
---|---|
US20120210765A1 (en) | 2012-08-23 |
KR20120090942A (ko) | 2012-08-17 |
CN102574196A (zh) | 2012-07-11 |
JP2011067868A (ja) | 2011-04-07 |
WO2011024792A1 (ja) | 2011-03-03 |
CN102574196B (zh) | 2016-02-10 |
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