JPWO2014181882A1 - 表層細粒化熱間剪断加工方法および表層細粒化熱間剪断加工部品 - Google Patents
表層細粒化熱間剪断加工方法および表層細粒化熱間剪断加工部品 Download PDFInfo
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- 238000010008 shearing Methods 0.000 title claims abstract description 196
- 238000000034 method Methods 0.000 title claims description 102
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 167
- 239000010959 steel Substances 0.000 claims abstract description 167
- 239000002344 surface layer Substances 0.000 claims abstract description 68
- 238000003672 processing method Methods 0.000 claims abstract description 7
- 229910000859 α-Fe Inorganic materials 0.000 claims description 54
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- 238000001816 cooling Methods 0.000 claims description 32
- 229910001563 bainite Inorganic materials 0.000 claims description 29
- 229910001567 cementite Inorganic materials 0.000 claims description 24
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 claims description 24
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/16—Heating or cooling
-
- 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
-
- 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
- C21D1/62—Quenching devices
- C21D1/673—Quenching devices for die quenching
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/008—Martensite
-
- 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
- C21D2221/00—Treating localised areas of an article
- C21D2221/10—Differential treatment of inner with respect to outer regions, e.g. core and periphery, respectively
-
- 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
-
- 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
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Heat Treatment Of Articles (AREA)
- Heat Treatment Of Sheet Steel (AREA)
- Heat Treatment Of Steel (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
Description
Claims (14)
- 炭素含有率が0.15質量%以上の鋼板を、Ac3〜1400℃の範囲で加熱・保持してオーステナイト化を行った後、金型へ設置して剪断加工を行い、急冷して焼入れ処理する熱間剪断加工方法において、前記剪断加工を開始する温度を、予め測定した前記鋼板のAr3に30〜140℃を加えた温度(℃)とする表層細粒化熱間剪断加工方法。
- 炭素含有率が0.15質量%以上の鋼板を、Ac3〜1400℃の範囲で加熱・保持してオーステナイト化を行った後、金型へ設置して剪断加工を行い、急冷して焼入れ処理する熱間剪断加工方法において、前記剪断加工を開始する温度を、予め測定した前記鋼板のAr3に剪断加工部の表層の相当塑性歪量に40〜60の係数を乗じたものとして算出される値を加えた温度(℃)とする表層細粒化熱間剪断加工方法。
- 前記剪断加工部の表層の相当塑性歪量を、前記剪断加工部の剪断面から前記剪断面の法線方向で鋼板の内側に前記鋼板の板厚の5〜20%の範囲で、かつ当該剪断加工部のバリ側の下面から前記鋼板の板厚方向に当該鋼板の板厚の20〜50%の範囲である領域の相当塑性歪量の平均値として算出する請求項2記載の表層細粒化熱間剪断加工方法。
- 前記剪断加工部の表層の相当塑性歪量を、鋼板温度が500〜800℃の応力・歪線図に基づいて行う数値シミュレーションにより算出する請求項2又は3に記載の表層細粒化熱間剪断加工方法。
- 前記剪断加工部の表層の相当塑性歪量を、下記式(1)のMisesの降伏関数に基づいて算出する請求項2〜4のいずれか1項に記載の表層細粒化熱間剪断加工方法。
- 鋼板が金型に接触してから鋼板の剪断加工を開始するまで3秒以内である請求項1又は2記載の表層細粒化熱間剪断加工方法。
- 前記金型に前記鋼板を接触させることにより前記急冷を行う請求項1又は2に記載の表層細粒化熱間剪断加工方法。
- 前記金型の鋼板接触部に設けた孔より噴出する水が、前記鋼板接触部に設けられた溝を通されることで前記急冷を行う請求項1又は2に記載の表層細粒化熱間剪断加工方法。
- 前記鋼板に対する前記加熱と前記剪断加工との間に、当該鋼板に破断を伴わないプレス成形を行う請求項1または2に記載の表層細粒化熱間剪断加工方法。
- 炭素含有率が0.15質量%以上の鋼板の剪断断加工部において破断面から剪断面の法線方向で鋼板の内側に100μmの範囲の表層は、フェライト相と残部とからなり、前記残部は結晶粒径が3μm以下のベイナイト相、マルテンサイト相、残留オーステナイト相の内の少なくとも1相、及びセメンタイト並びに生成不可避な介在物を有し、前記フェライト相の平均粒径は3μm以下であって、かつ、アスペクト比3以上の粒を個数で5%以上含み、さらに該100μmの範囲外はマルテンサイトと生成不可避な介在物、または、ベイナイトとマルテンサイト、および生成不可避な介在物で構成される表層細粒化熱間剪断加工部品。
- 前記表層において前記セメンタイトの個数密度が0.8個/μm3以下であり、かつ、当該セメンタイトの最大長が3μm以下である請求項10記載の表層細粒化熱間剪断加工部品。
- EBSD(電子線後方散乱回折法)観察により測定される前記ベイナイト相及びマルテンサイト相及び残留オーステナイト相を合計した前記表層における面積率が10〜50%である請求項10又は11に記載の表層細粒化熱間剪断加工部品。
- 炭素含有率が0.15質量%以上の鋼板を、Ac3〜1400℃の範囲で加熱・保持してオーステナイト化を行った後、金型へ設置して剪断加工を行い、急冷して焼入れ処理することにより製造され、かつ、前記剪断加工を開始する温度が予め測定した前記鋼板のAr3に30〜140℃を加えた温度(℃)とされた表層細粒化熱間剪断加工部品。
- 炭素含有率が0.15質量%以上の鋼板を、Ac3〜1400℃の範囲で加熱・保持してオーステナイト化を行った後、金型へ設置して剪断加工を行い、急冷して焼入れ処理することにより製造され、かつ、前記剪断加工を開始する温度が、予め測定した前記鋼板のAr3に剪断加工部の表層の相当塑性歪量に40〜60の係数を乗じたものとして算出される値を加えた温度(℃)とされた表層細粒化熱間剪断加工部品。
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JP2013099243 | 2013-05-09 | ||
JP2013099243 | 2013-05-09 | ||
PCT/JP2014/062534 WO2014181882A1 (ja) | 2013-05-09 | 2014-05-09 | 表層細粒化熱間剪断加工方法および表層細粒化熱間剪断加工部品 |
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JPWO2014181882A1 true JPWO2014181882A1 (ja) | 2017-02-23 |
JP6103047B2 JP6103047B2 (ja) | 2017-03-29 |
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US (1) | US20160067760A1 (ja) |
EP (1) | EP2995395B1 (ja) |
JP (1) | JP6103047B2 (ja) |
KR (2) | KR101833191B1 (ja) |
CN (1) | CN105163880B (ja) |
BR (1) | BR112015027819A2 (ja) |
CA (1) | CA2910862C (ja) |
ES (1) | ES2709206T3 (ja) |
IN (1) | IN201918040553A (ja) |
MX (1) | MX367252B (ja) |
RU (1) | RU2633200C2 (ja) |
TR (1) | TR201900620T4 (ja) |
TW (1) | TWI568857B (ja) |
WO (1) | WO2014181882A1 (ja) |
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JP2016132823A (ja) * | 2015-01-22 | 2016-07-25 | アイシン精機株式会社 | 剪断加工部の焼入れ方法、焼入れされた剪断加工部を有する鋼材、及び、焼入れされた剪断加工部を有する鋼材の製造方法 |
JP6610301B2 (ja) * | 2016-02-01 | 2019-11-27 | 株式会社豊田中央研究所 | 硬さ解析方法および硬さ解析プログラム |
JP2019089232A (ja) * | 2017-11-14 | 2019-06-13 | エスアイアイ・プリンテック株式会社 | 噴射孔プレート、液体噴射ヘッドおよび液体噴射記録装置 |
JP7129807B2 (ja) * | 2018-03-30 | 2022-09-02 | 大阪瓦斯株式会社 | パンチ孔形成方法及びパンチ孔形成装置 |
KR102202026B1 (ko) * | 2018-11-14 | 2021-01-13 | (주) 에이 에스 티 | 다이롤 현상이 억제된 도어 잠금장치용 부품 제조방법 |
KR102612142B1 (ko) * | 2019-02-27 | 2023-12-08 | 제이에프이 스틸 가부시키가이샤 | 냉간 프레스용의 강판의 제조 방법, 및 프레스 부품의 제조 방법 |
DE102019116968A1 (de) * | 2019-06-18 | 2020-12-24 | Benteler Automobiltechnik Gmbh | Stoßantrieb für ein linear zu bewegendes Werkzeug, Blechbauteil sowie Verfahren zum Schneiden eines Blechbauteils |
EP4194571A4 (en) * | 2020-08-07 | 2023-11-08 | Nippon Steel Corporation | STEEL PLATE |
WO2022030639A1 (ja) * | 2020-08-07 | 2022-02-10 | 日本製鉄株式会社 | 鋼板 |
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JP2013174004A (ja) * | 2011-07-21 | 2013-09-05 | Kobe Steel Ltd | 熱間プレス成形鋼部材の製造方法 |
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CA2910862C (en) | 2018-06-26 |
CN105163880A (zh) | 2015-12-16 |
EP2995395B1 (en) | 2018-10-31 |
TH159544A (th) | 2017-01-23 |
KR20150144801A (ko) | 2015-12-28 |
ES2709206T3 (es) | 2019-04-15 |
MX367252B (es) | 2019-08-12 |
WO2014181882A1 (ja) | 2014-11-13 |
JP6103047B2 (ja) | 2017-03-29 |
TWI568857B (zh) | 2017-02-01 |
US20160067760A1 (en) | 2016-03-10 |
CN105163880B (zh) | 2017-10-13 |
TR201900620T4 (tr) | 2019-02-21 |
TW201506167A (zh) | 2015-02-16 |
IN201918040553A (ja) | 2019-11-08 |
MX2015015170A (es) | 2016-06-10 |
RU2633200C2 (ru) | 2017-10-11 |
KR101833191B1 (ko) | 2018-02-27 |
BR112015027819A2 (pt) | 2017-08-29 |
EP2995395A4 (en) | 2016-12-28 |
EP2995395A1 (en) | 2016-03-16 |
RU2015149732A (ru) | 2017-06-16 |
KR20170143003A (ko) | 2017-12-28 |
CA2910862A1 (en) | 2014-11-13 |
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