1. 2013.3.12~3.14

2. H/W ,,,,,, , , 3. . . -270~440MPa590,780,980,1470MPa Hot stamping -H/W 6T 8T10T . -, , , . -, , CTW, LASER 4. I. II. III. IV. AC AC V. H/W VI. AC VII. VIII. IX. X. XI. XI. XII. 5. , . , (=/) HT50, HT60 (t>30 ) HT70, HT80,HT110 6. : , :~590 DP 6590 TRIP 7. (:4.9N) Ceq=C+Si/40+Cr/20 (wt%) (mm)7 8. . 0.15% C+P < 0.15% ( ) 8 9. Si, Mn, Cr 9(KN) 30 25 20 15 10 5(KA) 10. (I) )300MPa 1.0t 2.45x t(kN)=2.45kN 970MPa 1.0t 2.45x tx [970/300](kN)=4.4kN [] 2.45x t(kN)102.45 t (TS/300)1/2 11. .11 12. ( ) 12 13. Si, Mn, Cr 13 14. 1.2 2 2 2k W(cycle) . 14 15. . k N :4kN :10cyc cyc 2.5~3.0kN .15 16. : ( ) 17. , .17 18. 450 Mpa 3.2t + M12 AC: 10.6~14kN : 15.4~22kN:80kg t1.2M8 NUT k N15.410.6 M12 NUTAC 18 19. (HAZ) 19 20. , + 590780 490490 ( , , , ,) (, ) 20 21. 590MPa (HAZ) : Ac3(910C) : (HAZ) 780590) = (x )/ 21490 22. TIG (PEENING) 22 23. Zn-a. b. c. d. e.Al-a. 1 Al(Al+5~10% Si) b. 2 Al(Al) c. Al-Zn(45%Zn+1.5%Si)-Zn(GA, GI) Zn-Al5% Zn-Ni Cr+Cr-oxide+Zn Zn-FeTerne sheetTin Zn Cr+Ni, Cd, , Terne sheet: 24. GA590TRI PGA590DP 4t4tGA780DP GA270590DP 270GA440 25. 7GI GAFe-ZnZn-Ni8 CR(kA)9602040 60 80 100 (g/m2) GI Fe , , 10 26. : 27. + : Ni, Cr : . 28. ~1/10 29. XI. 3 30. . . . , . . . . . 30 (0.5mm) - Ar - 2014-01-06 31. .[1998.] P105~116 WELDING TECHNOLOGY[2008.1]P157~163 WELDING TECHNOLOGY[2008.3]P69~72 - ( ) 32. 34 33. 35 34. 36