Lasers in Engineered Welded Blanks Shiloh Industries, Inc.
Shiloh Industries, Inc.
1
Company Overview • • • • • •
Established in1950 1,200 employees Publicly traded as “SHLO” on NASDAQ Exchange FY 2011 Sales - $518 million TS16949 approved – All Plants 9 operations in United States & Mexico
Shiloh Capabilities Include: • Tool & Die Development • Coil Processing • Precision Blanking • Engineered Welded Blanks • Complex Stamping & Modular Assemblies • Deep Draw Capabilities • AcroStikTM Laminate Solutions Shiloh Industries, Inc.
2
Geographic Locations Medina Blanking OH, USA
Liverpool Coil Processing OH, USA
Canton Manufacturing; Sales & Technical Center, MI, USA Engineering, Blanking, EWB, Laser Cutting Engineering, Blanking, EWB, Stamping, Modular Assembly
Coil processing (slitting & CTL), Stamping, Modular Assembly,
AcroStikTM
Wellington Manufacturing OH, USA
Ohio Welded Blank OH, USA
Complex Stamping, Modular Assembly
Blanking, EWB, AcroStikTM
Bowling Green Manufacturing KY, USA
Jefferson Manufacturing GA, USA
Dickson Manufacturing TN, USA
Heavy Gauge Blanking, Stamping
Blanking, EWB, Stamping
Complex Stamping, Modular Assembly
Shiloh de Mexico Ramos Arizpe, Mexico
Blanking, EWB, Stamping, Modular Assembly
Shiloh Industries, Inc.
3
Product Applications
Shiloh Industries, Inc.
4
First Operation Blanking
Shiloh Industries, Inc.
First Operation Blanking
Shiloh Industries, Inc.
Laser Process Capabilities Engineered Welded Blanks (EWB) Engineered Welded Blanks are more advanced laser welded blanks, manufactured from two or more blanks of the same or different steel grades or gauges welded together. A high level of engineering analysis and laser technology is applied to achieve a reduction in vehicle mass, number of parts, and tooling cost, while improving body strength. It is important to note, that unlike other welding applications, a welded blank will be formed after welding. The stresses applied during the forming process require a very high quality weld placed in the exact location to optimize mass and material utilization.
Shiloh Industries, Inc.
7
Why do we use Engineered Welded Blanks? Different gauges, materials & coatings can be incorporated into one blank Blank can be engineered to desired properties
Consolidation of components Reduction in number of parts Reduced tooling costs Reduced assembly operations and equipment
Material utilization Reduction in engineered scrap due to improved blank nesting
Mass reduction on vehicle Shiloh Industries, Inc.
Shiloh EWB History Engineered Welded Blank Capabilities • Started Engineered Welded Blank production in 1989 • First welded blank was mash seam welded • Reclamation of offal from large body blanks
• Moved to laser welding in 1994 • Current production est. 10,000,000 EWB/yr • 5 EWB facilities currently
Shiloh Industries, Inc.
9
Linear Welded Components
Underbody Components
Door Inners Body Side Inners
Shiloh Industries, Inc.
10
Multi-Linear Welded Components
Rear Door Inner (Draw)
Rear Door Inner (Final)
Body Side Inner Shiloh Industries, Inc.
Lift Gate Inner 11
Curvilinear Welded Components
Shiloh Industries, Inc.
12
Advantages of Laser Welding • Improved speed and flexibility • Common systems with interchangeable fixtures
• Improved weld quality • Smaller HAZ • Reduced work piece distortion
• Improved formability • Better material utilization • No overlap or flange required • One side access • Enhanced capabilities for curvilinear welding
Shiloh Industries, Inc.
13
Applications • Material Optimization – Reduction in Engineered Scrap Current Design 1727 mm 68.750”
Total Material usage = 32.66 kg
63.843” 1600 mm
Three Piece Even gage EWB Design
Total Material usage = 26.33 kg
Advantages 6.33 kg material savings per part Blank A and B can be uncoated Shiloh Industries, Inc.
Applications • Part Consolidation Blank A,
2 Pc. Baseline Design
EWB Option
Material Usage 5.23 kg
Material Usage 4.38 kg
On Vehicle Mass 2.74 kg
On Vehicle Mass 2.38 kg Blank B,
Advantages • 0.84 kg of Material savings per side Reinforcement
• 0.36 kg of mass savings on vehicle per side • Lower stamping die cost
Pillar ,
• No welding or fixture costs • Lower press time, transportation, inventory
Shiloh Industries, Inc.
Balance - Formability & Mass Savings
Thinning
Blank
Vehicle mass optimization example: For some applications the part geometry requires a high level of material elongation for forming. Placement of the weld seam is critical. This example shows a solution to achieve acceptable levels of material thinning by correct placement of the weld line and mass optimization with curvilinear laser weld.
40 %
Shiloh Industries, Inc.
30 %
15 %
15 %
Applications • Vehicle Mass Optimization Base Design
Blank
Curvilinear Weld Option
Mass in kg
Thick
Blue
4.75
Thin
Green
4.59 Total
Shiloh Industries, Inc.
9.34
Blank
-1.1 Kg /Door Mass Savings
Mass in kg
Thick
Pink
2.75
Thin
Brown
5.48
Total
8.23
17
Applications • Lightweight Opportunities Lift gate Inner and Reinforcements
4-Pc Curvilinear EWB Proposal Blank A
Blank B
Blank C
Blank D
Advantages • Eliminates 4 parts, 2 stamping dies and 1 blank die • Steel Savings of 5.45 kg. • Mass savings of 0.90 kg on vehicle
Shiloh Industries, Inc.
Laser Welding Keys to Success • • • • •
Training Laser Champion(s) Inventory of key maintenance items Quality fit up of components Good fixture design
Shiloh Industries, Inc.
19
Future Applications • Laser Welding of Advanced materials • AHHS coated & uncoated • PHS coated & uncoated – Laser Removal (ablation) of coatings
• Aluminum • Fiber reinforced Plastics
• Laser Welded Coils • Highly Engineered Welded Blanks • EWB with addition of Acoustic/structural patches
• Heavy Gage Frame (class 8 trucks)
Shiloh Industries, Inc.
20
Shiloh Industries, Inc.
21