JP6443704B2 - 車体部品の製造方法 - Google Patents
車体部品の製造方法 Download PDFInfo
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- JP6443704B2 JP6443704B2 JP2017231901A JP2017231901A JP6443704B2 JP 6443704 B2 JP6443704 B2 JP 6443704B2 JP 2017231901 A JP2017231901 A JP 2017231901A JP 2017231901 A JP2017231901 A JP 2017231901A JP 6443704 B2 JP6443704 B2 JP 6443704B2
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- 238000004519 manufacturing process Methods 0.000 title claims description 25
- 238000005096 rolling process Methods 0.000 claims description 79
- 238000000034 method Methods 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000000465 moulding Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 30
- 239000010959 steel Substances 0.000 description 30
- 238000009826 distribution Methods 0.000 description 9
- 238000009966 trimming Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 238000007747 plating Methods 0.000 description 6
- 238000003466 welding Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000712 Boron steel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
- B21D22/022—Stamping using rigid devices or tools by heating the blank or stamping associated with heat treatment
-
- 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
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/005—Processes combined with methods covered by groups B21D1/00 - B21D31/00 characterized by the material of the blank or the workpiece
- B21D35/006—Blanks having varying thickness, e.g. tailored blanks
-
- 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
-
- 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
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/28—Associations of cutting devices therewith
-
- 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
- B21D47/00—Making rigid structural elements or units, e.g. honeycomb structures
-
- 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
- B21D53/00—Making other particular articles
- B21D53/88—Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/38—Removing material by boring or cutting
-
- 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
- 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
- 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
- C21D2261/00—Machining or cutting being involved
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Crystallography & Structural Chemistry (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Metal Rolling (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Heat Treatment Of Articles (AREA)
- Body Structure For Vehicles (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
Description
図4aに示したように、Alめっき鋼板はプレス成形のために予め設定された大きさと形状のブランク10にに切断される。ブランキングラインを設計する際、S2における圧延によるブランク10の延伸量と、S4における成形マージンなどが考慮される。
圧延工程S2は、圧延をした領域とそうではない領域の間に厚さの差が発生するよう、ブランク10の一部領域を圧延する工程である。このような圧延は、互いに同じではない複数の部分的領域に対して順次に行われる。圧延前のブランク10の厚さが全体にわたって同じであれば、圧延工程S2の後まだ圧延されていない領域はブランク10の最も厚い領域になる。圧延工程S2はこのような事項を考慮して設計されるが、ブランク20の全体の面積に対して圧延する必要はない。
圧延が完了されたブランク10は、プレス成形に必要な形状に外郭ラインに沿って切断される。できるだけ所望の成形品に近い形状に切断することが好ましい。切断にはレーザを利用してもよく、この工程S3で上述したフランジ22が切断される。
ホットスタンピングのために、ブランク10をオーステナイト化温度以上に加熱する。例えば、Alめっき鋼板を約550℃程度に加熱し、表面に酸化層を形成した後、950℃に加熱する。直接通電による加熱、高周波誘導加熱、電気炉などが単独または複合に利用されてもよい。
オーストナイト化された(austenitized)ブランク10を、所望の形態の製品にプレス成形すると共に急冷させる工程である。急冷を介し、マルテンサイト(martensite)を有する高強度の本体部品が得られる。
熱間プレス成形の後は、成形された製品の縁に、製品以外の余分を除去するためのトリミング工程が行われる。ブランク10の浪費の防止及び生産効率の向上などのために、2次トリミング工程は省略されることが好ましいが、今のところはプレス成形後のトリミングが必要である。
11、21:孔
22a、22b:フランジ
Claims (6)
- a)皮膜を有するブランクを厚さが互いに異なる2つ以上の領域を有するように圧延するステップと、
b)圧延されたブランクをプレス成形に必要な形状に切断するステップと、
c)切断されたブランクを加熱して熱間プレス成形及び冷却するステップと、を含み、
前記ステップa)において、圧延されるブランクには孔が設けられ、この孔は少なくとも一部が圧延が行われる領域内に位置するように形成されることを特徴とする車体部品の製造方法。 - 前記ステップa)の前に、ブランクの表面に皮膜の酸化物が形成されるように予備加熱するステップを更に含むことを特徴とする請求項1に記載の車体部品の製造方法。
- 前記ステップa)における圧延は、
互いに同じではない複数の部分的な領域に対して順次に行われることを特徴とする請求項1に記載の車体部品の製造方法。 - 前記ステップa)において、ブランクは2方向以上の互いに異なる方向に圧延されることを特徴とする請求項1に記載の車体部品の製造方法。
- 前記ステップa)で圧延されるブランクは、孔によって除去されたブランク部位の面積を少なくとも一部補償し得るように、孔の位置に対応するブランクの縁領域に面方向に延長されたフランジを備え、
ステップb)において、フランジは切断されることを特徴とする請求項1に記載の車体部品の製造方法。 - 前記ステップa)において、ブランクは2方向以上の互いに異なる方向に圧延されることを特徴とする請求項5に記載の車体部品の製造方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020160167376A KR101881893B1 (ko) | 2016-12-09 | 2016-12-09 | 열간 성형부품 제조방법 |
KR10-2016-0167376 | 2016-12-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018099731A JP2018099731A (ja) | 2018-06-28 |
JP6443704B2 true JP6443704B2 (ja) | 2018-12-26 |
Family
ID=60543332
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2017231901A Active JP6443704B2 (ja) | 2016-12-09 | 2017-12-01 | 車体部品の製造方法 |
Country Status (8)
Country | Link |
---|---|
US (1) | US20180161841A1 (ja) |
EP (1) | EP3342498B1 (ja) |
JP (1) | JP6443704B2 (ja) |
KR (1) | KR101881893B1 (ja) |
CN (1) | CN108213862B (ja) |
BR (1) | BR102017026289B1 (ja) |
ES (1) | ES2826396T3 (ja) |
WO (1) | WO2018105939A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109434384B (zh) * | 2018-11-16 | 2021-06-22 | 苏州普热斯勒先进成型技术有限公司 | 一种涂层钢板的制备方法及装置、热冲压方法 |
JP7155986B2 (ja) * | 2018-12-13 | 2022-10-19 | トヨタ自動車株式会社 | 鋼板部材及びその製造方法 |
JP2022115180A (ja) * | 2021-01-28 | 2022-08-09 | リセオン株式会社 | 成形ブランクを製造するためのデュアルヒーティングシステム熱間成形 |
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AT278485B (de) * | 1967-10-30 | 1970-02-10 | Guenther Ing Lang | Verfahren und Schnittwerkzeug zur Herstellung von in bestimmten Teilungsabständen angeordneten Lochungen in Profilbändern aus Metall, vorzugsweise Stahl |
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-
2016
- 2016-12-09 KR KR1020160167376A patent/KR101881893B1/ko active IP Right Grant
-
2017
- 2017-11-23 EP EP17203209.6A patent/EP3342498B1/en active Active
- 2017-11-23 ES ES17203209T patent/ES2826396T3/es active Active
- 2017-11-28 WO PCT/KR2017/013726 patent/WO2018105939A1/en active Application Filing
- 2017-12-01 JP JP2017231901A patent/JP6443704B2/ja active Active
- 2017-12-04 US US15/830,328 patent/US20180161841A1/en not_active Abandoned
- 2017-12-05 CN CN201711267366.5A patent/CN108213862B/zh active Active
- 2017-12-06 BR BR102017026289-8A patent/BR102017026289B1/pt active IP Right Grant
Also Published As
Publication number | Publication date |
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CN108213862B (zh) | 2020-06-26 |
BR102017026289B1 (pt) | 2022-11-16 |
JP2018099731A (ja) | 2018-06-28 |
EP3342498B1 (en) | 2020-07-22 |
US20180161841A1 (en) | 2018-06-14 |
EP3342498A1 (en) | 2018-07-04 |
BR102017026289A2 (pt) | 2018-08-21 |
KR101881893B1 (ko) | 2018-07-26 |
WO2018105939A1 (en) | 2018-06-14 |
CN108213862A (zh) | 2018-06-29 |
KR20180066917A (ko) | 2018-06-20 |
ES2826396T3 (es) | 2021-05-18 |
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