an update on advancement of japanese flat steel products ... · pdf filean update on...

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An update on advancement of flat steel products for automotive application

Nov. 06, 2014

Nippon Steel & Sumitomo Metal Corporation

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Global Top Ten Steel Producers by Crude Steel

1 Nippon Steel (Japan) 28.4

2 POSCO (Korea) 27.7

3 Arbed (Europe) 24.1

4 LNM (Europe) 22.4

5 Usinor (Europe) 21.0

7 ThyssenKrupp (Europe) 17.7

JFE (Japan) 33.0

POSCO (Korea) 34.7

Shagang Steel (China) 23.3

Baosteel (China) 35.4

Hebei Steel (China) 33.3

TATA Steel (India) 24.4

6 Corus (Europe) 20.0

ArcelorMittal (Europe) 103.3

11 Kawasaki Steel (Japan) 13.0

Source：World Steel Association

Wuhan Steel (China) 27.7

US Steel (USA) 23.2

2000CY 849 2008CY 1,327

Hebei Steel (China) 44.4

POSCO(Korea) 38.4

Hebei(China） 45.8

Wuhan (China) 39.3

Shougang (China) 31.5

Baosteel(China) 43.9

ArcelorMittal (Europe) 96.1

Shagang Steel (China) 35.1

2013CY 1,607

million tons

Ansteel (China) 33.7

JFE (Japan) 31.2

8 Baosteel (China) 17.7

9 NKK (Japan) 16.6

10 Riva (Europe) 15.6

20

12

Nippon Steel (Japan) 37.5 NSSMC (Japan) 50.1

Sumitomo Metal (Japan) 14.1 Sumitomo Metal (Japan) 11.6




China BNA

USA I/N Tek I/N Kote

Brazil UNIGAL 1998

Thailand SUS

India

JCAPCPL

Europe ArcelorMittal / Cross License

50%

49%

55%

30%

50%

40%

Mexico

TENIGAL

49%

Establishing Worldwide Auto Steel Sheet Supply Network

J/V Total supply 10MMT/Y CR [1.5MT] CAPL [1.1MT] 1990

CG [0.5MT] EG [0.4MT] 1991

CGL [1.0MT] 2000

(Source： Various data, NSSMC estimates)

CGL [0.4MT] 2013

NSSMC

CAPL [0.6MT] 2014

Brazil USIMINUS

29%

Vietnam CSVC 30%

CGL [0.4MT] 2013

CR [2.2MT ] CAPL [1.0MT] CG [1.3MT) 2005 No.4 CGL 2015

Thailand NSGT

CR [1.0MT] (CAPL 0.5MT) 1998

100%

CAPL [0.5MT] CG [0.3MT] 2013 Indonesia

KNSS 80%

USA AM/NS Calvert

50%

CR/CG [0.5MT] SOP in 2017

%：NSSMC investment ratio

HR [4.3MT] CR [2.1MT] CAL[0.6MT] CG [1.4MT] 2014


http://ja.wikipedia.org/w/index.php?title=%E3%83%95%E3%82%A1%E3%82%A4%E3%83%AB:Flag_of_Vietnam.svg&page=1



TS (MPa)

Mild steel

340~370

440~590

1180~

780~980

Vehicle body

Suspension

Wheels

DP, TRIP high-strength steel

UHSS(980,1180, 1180HF)

Hot-rolled, high-hole expandable, high-strength steel (590, 780）

Shading HAZ softening resistance high-strength steel

HSS for wheel disks and rims （590DP, 780）

Aluminum-coated sheets for the 1470 hot press

GA980, 1180DP

Steel pipes for 1780DIB

GA-L treated sheets

Fuel tank: Sn-Zn coated sheets

440~540

590~

780

690~

High-strength steel for induction quenching

NSSMC Advanced Products for Automotives

BH sheets

Zinc-coated sheets for the 1470 hot press

NSSMC developed ahead of the steel industry.

UHSS(980,1180,1310DP)

1780 hot press




Proposing Total Solutions for Materials, Parts Structures, and Production Technologies

Overall proposal of materials, parts structures,

and production technologies

Development

and

application of

AHSS

Performance

of parts

Forming

technologies

Bonding

technologies

Crash properties

Fatigue properties

Member stiffness

Corrosion resistance Noise/vibration

Laser welding

Arc welding

Spot welding

Plasma welding

Mechanical bonding HF technology

TB technology

Forming simulation technology (FEM)

New forming

methods

Lubrication technology

Shape fixability

Formability

Production

Proposal of Lightweight solution with 「Material + Engineering method + Design」




Recent Press Release 1 2011

October Nissan Sets New Global Benchmark with 1.2 GPa Ultra High Tensile Strength Steel with High Formability -New steel will reduce body weight by up to 15 kg from 2013 models Developed in collaboration with Nippon Steel, the new Ultra High Tensile Strength Steel will be used for center pillar reinforcements, front and side roof rails and other key structural components.

October Mazda First Automaker to use 1,800 MPa Ultra-High Tensile Steel Mazda, in collaboration with Sumitomo Metal, has become the first automaker to successfully develop vehicle components using 1,800 MPa ultra-high tensile steel. The super strength steel will debut in the all-new Mazda CX-5 crossover SUV that will commence its global launch in early 2012.

2012 Sept SUZUKI adopted 980 HSS for the front pillar by using our newly developed press method

"Nsafe®-FORM-LT".

June HONDA "N Box" used various HSS; CR 590 TRIP for side panel outer, HR 780 for suspension arm and 1500 Hot Stamp for center

pillar

April 3DQ, Three-Dimensional Hot Bending Quench Mass Processing Technology, an innovative technology that contributes to reducing the weight

of vehicles.




Recent Press Release 2 2013

May Mass Production of Automotive Parts by Direct-Water-Cooling HOT PRESS Forming UNIPRES and NSSMC have jointly succeeded in mass production of automotive parts by HOT PRESS forming with Direct-Water-Cooling method.

April SUZUKI adopted 1180 GA HSS for floor side member Feb First Adoption of SuperDyma® for Automotive Bodies

HONDA ACURA "RLX" used a hybrid door, aluminum outer panel and steel inner panel. Our highly corrosion-resistant galvanized steel SuperDyma® is adopted to prevent electrolytic corrosion between the characteristically dissimilar metals.

2014 April Received Suzuki Award (Certification of appreciation) for the adoption of UHSS, such as 980 and 1180 with "Nsafe®-FORM-LT". April Received Honda Award (Certification of appreciation) – Technical Development Prize for the first adoption of SuperDyma(R) for Automotive Bodies July Received Nissan Global Supplier Award – Innovation Prize for the development of 1.2 GPa Ultra High Tensile Strength Steel




1.2 GPa Ultra High Tensile Strength Steel with High Formability

Infiniti Q50 BIW (Source; Nissan)

Part color in Red; 1.2GPa AHSS





400

500

600

700

800

900

1000

1100

1200

1300

6 11 16 21 26 31 36

YP

(MP

a)

EL(%)

1.0≦thickness＜1.2

980DP(YL)

980DP(YH)

1180DP 1180TRIP

780DP 780TRIP




5μm

New 1.2GPa UHSS (TRIP) 1.2GPa UHSS (DP)

(Hard)Martensite

(Increase Strength) (Hard)Bainite

(Increase Strength)

Residual Austenite

(Increase Formability) (Soft)Ferrite

High elongation achieved by optimizing the microstructure of hard and soft phase, allowing high strength and press formability of complex shapes.





1,800 MPa Ultra-High Tensile Steel by Hot press

Fr-Bumper-Beam Rr-Bumper-Beam

1800MPa Hot Press

Mazda Motor Corporation has become the first car manufacturer to successfully develop vehicle components using 1,800 MPa ultra-high tensile steel. This super-strength steel was applied to Mazda CX-5.

(Source： MAZDA HP)




Application of ultra HSS to front pillar and center pillar to improve the rigidity and crash worthiness

Blank shape

Tool component

Pad

Blank

Punch

Die

Blank shape

Tool component Punch

Blank

Die

Holder

Forming with blank holder to restrain draw-in

Forming by using pad to control material frow

Breakage

Wrinkle

No occurrence of breakage, wrinkle

Deep Drawing (Conventional） NSafe®-FORM-LT （Developed）

Forming problems

Advantages; Improveing formability (breakage, wrinkle), Decreasing forming load, Higher the yield of material

Newly developed press method "Nsafe®-FORM-LT"




High strength steel sheets application for HONDA N-BOX

Hot stamp

Outside

- Hot stamp for B-Pillar-Reinforcement First application in HONDA Japan - CR590TRIP for Side-Panel-Outer First application in the world - HR780λ for Fr-Lower-Arm

Section AA

CR590TRIP HR780λ




3DQ, Three-Dimensional Hot Bending Quench

3DQ technology is the continual process of steel tubes with diverse shapes (round, square, and various different shapes) to be heated and sequentially quenched with cooling water as they pass through the manufacturing line. By using this technology, high-tensile strength steel tubes with complex bended shapes can be manufactured without using dies.




Direct-Water-Cooling HOT PRESS Forming

The existing HOT PRESS forming seeks an indirect cooling of steel sheet steel, by the flow of cooling water through the inside of the dies. Whereas, the new Direct-Water-Cooling HOT PRESS forming, put to practice this time, in addition to ordinary cooling way ejects from the die surfaces the cooling water, which, flowing through the space between the die-surface and the steel sheet panel, cools the steel directly. Direct-Water-Cooling means productivity improvement about three times that of the existing indirect one.




First Adoption of SuperDyma® for Automotive Bodies

(Source： HONDA)

Door Inner SuperDyma®

Door Outer Aluminium

Acura RLX

HONDA ACURA "RLX" used a hybrid door, aluminum outer panel and steel inner panel. Our highly corrosion-resistant galvanized steel SuperDyma® is adopted to prevent electrolytic corrosion between the characteristically dissimilar metals.


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