4 2014년도 프레스 세미나-주제1-부가가치를 실현하는 고정밀 전단가공-140409

• 1. 14 2014 04 15 ~ 17

2. 1 2 (QDC) 3. . . . STUDY ( , CRACK , , ) 1 4. . . 50% . . . . FINE BLANKING 1923 . . , COST . . . , . 5. TRIM , , . TRIM DIE SPRING & GUIDE PIN ( GAS TANK )PAD RETURN PIN LIFTER SCRAP CHUTE VIBRATER SETT'G BLOCK GUIDE POST SCRAP CUT (1/3t ) BURR TRIM PAD . (TRIM) 6. . (TRIM) Trimming Blade 7. -CLEARLANCE . BURR , CLEARLANCE ( : t ) CLEARLANCE ( , ) (0.04~0.05) * t ( ) (0.05~0.06) * t ( ) (0.05~0.07) * t (0.01~0.03) * t 0 CLEARLANCE (2t+1) . (TRIM) 8. - TRIM P = x x t P : (kg) : (kg/mm) : (mm) t : (mm) - PADG ( STRIPG ) STEEL F = P x ( 5 ~ 10% ) F : (kg) PADG . (TRIM) 9. - PAD STROKE = t + h + h : : PADG , SPRG - SPRING Kgf/mm PAD ST K DEFLECTION - SPRG SPRG ( n ) , (K) DEFLECTION ST PADG ( F ) PAD ST ( F ) F = K x n x PAD ST F = K x n x ST ( ) . (TRIM) 10. . . GEAR , V . . V PIE , BLANK , , . . 50SPM (100mm/se c) 1SPM (2mm/se c) 30SPM (20mm/sec ) 70SPM (140mm/se c) BLANK HOLE : ( R ) 980Y t=1.4mm 11. . , . . V =140mm/sec (70SPM) . . 12. . SK85 ( , , 590HV) . . , COST . . : 19.76 mm (R=0.0 0.3 mm) : 19.96 mm (R=0.0 0.3mm) : 19.80 mm (R=0.0 mm) : 20.00mm (R=0.0 mm) CLEARANCE=1%t 0.13mm : HOLE : SK85 t = 2mm 590HV (Rp_=0mm) (Rp_=0mm) (Rp_=0mm) (Rp_=0.3mm) . 13. . 590 flange crack . . 9 PRO , CRACK FLANGE . HAIR CRACK , CRACK . . flange crack CRACK CRACK HAIR CRACK : HAIR CRACK . CRACK 14. . CRACK . CRACK . -. , -. . -. CLEARANCE -. MAINTENANCE -. . flange crack . CRACK CRACK 15. . , , . CRACK SLITTING . . flange crack . SLITTING 3 CRACK SLITTING SLITTING SLIT 1 BLANK BLANK 16. . SLITTING & BLANKING BLANKING . . 0.3 mm . , HV 30 CRACK . . flange crack . (SLITTING ) SLITTING ( ) / mm 0.3mm 1 . 17. . BLANK STEEL , BLANK DIE DIE BLANK CRACK ZERO . . DIE Rz 1.2 (#4000) Rz 0.5 . . flange crack . 18. . , BLANK . . , CRACK CLEARANCE CRACK . . flange crack . BLANK BLANK STEEL 19. . STEEL CRACK . . BLANK , CRACK ZERO . . flange crack . STEEL CRAC K CRACK 20. . ( 1.6Ra ) ( t=12) . FB ( FINE BLANKING ) . V-RING CLEARANCE . . & Fine Blanking PUNCH PADG V RING . 21. . , . FB ( FINE BLANKING ) . . & . 22. . , STEEL . ( ) ( ) 2.5 Rz 0.4 Rz . & . : 2.5Rz : 0.4Rz 23. . , , RUNNIG COST 2 . #. ( ) , , . . & . 24. . , CLEARANCE , . . , CLEARANCE , , . . . . , , , . . 25. . . , -. , -. , PAD STRIPPER . , -. , -. , . BURR -. , . -. . , , , BURR -.BURR . -. PIE , -. . ( ) BURR -. , . 26. . . . , . . 10 40~70% , . . . ( :23) ( :200) (N) (N) 27. . ( ) . DLC (Diamond Like Carbon) AL PIE . < > . SUS 304 t=1mm 1,5mm Diamond ( PCD : Polycry- stalline Diamond) 14 . . ( AL ) : 5,000 HOLE ( 5mm HOLE, C = 10% t , : AL , t = 1mm ) (a) NON-COATING (b) DLC-COATING DLC 28. . . . ( SKD11) + . , + . . . : (980 Mpa t=2.0mm) : SKD11 + VC (VC: ) Flange 29. . . 1. . -. SKD11 . -. . *. : 700 HV, *. : 1800~2800 HV -. . #. CHIPPING : PVD CRACK . ( ) 3 . 1. . 2. ( ) . 3. ( ) . 30. . . (SKD11+TIC) ( X 200) 2. ( ) . -. CRACK . -. , . SKD11+TIC . 31. . . ( X 2000) ( X 2000) 3. ( ) . -. FLANGE (SKD11+VC) -. O ( ) -. VC -. VC 450 , -. . 32. . . . . . , . #. , . -. . . , SKD11 HRC 60 . SKD11 SKD11 33. . . . , SKD11 HRC 60 . TRIM CHIPPING SKD1 1 TRIM SKD1 1 CHIPPING 34. . . . 450 1000 . BENDING . TRIM : 5000 SHOT 183,000 SHOT . 35. . . . ( , RIB , ( ) BACK-UP ) . . ( ) . CLEARANCE ( t x 5~7% ) . . PADG ( 20~40% ) . SHARE . . CHIPPING ( ) 0.2R . . ( ) . ( ) . . ( ) UP GRADE (SKD11 ) ( , ( ), ( ) ) 36. Thank you.