Desarrollo de la Progresión de cintas de metal (strip)
- Product Geometry
- Blank Shape Development
- Material Yield
- 1st Form Tool - Crash Form
- 1st Form Shape
- 2nd Form Tool - Wipe Sides
- 2nd Form Shape
- 3rd Form Tool - Final Form
- 3rd Form Shape
- 4th Form Tool - Extrude Holes
- 4th Form Shape
- Formability
- Formability - splits
- Thinning
- Springback
- Simulation Videos
Case Study Overview
The client requested a complete progression process development for the supplied part.
The requested outputs were:
1. Simulation results (formability/thinning)
2. Forming forces
3. Die face data (tool surfaces)
4. Developed blank shape
5. Springback analysis
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Back to Top Product Geometry
Before the progression design and simulation could commence, the supplied CAD data required repair.The supplied CAD model was adjusted to match the supplied product drawing as closely as possible.Only one area of the part could not be modelled as shown in the drawing. The repaired CAD model reflects the true representation of a sheet metal part.
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Back to Top Blank Shape Development
A blank shape was calculated and optimized through the forming process.The result shows a 100% developed blank which should be used as the starting point for blank development during first tryout.Do not use this data to cut the trim steals directly. Always trial a laser cut/wire cut prototype blank first.Using this blank as the starting point, blank development time on the shop floor can be significantly reduced.
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Back to Top Material Yield
A minimum material yield of 75% is easily achieved with the layout shown.However, the client may wish to further improve the yield by setting the parts closer together. The tool designer should decide how close is acceptable.
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Back to Top 1st Form Shape
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Back to Top 2nd Form Shape
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Back to Top 3rd Form Shape
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Back to Top 4th Form Shape
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Back to Top Formability - splits
The formability analysis shows that the part forms, with two minor concerns:
1. Small splits in the end of extrusions|
2. Material gathering (bunching up)
The client should indicate if these problems can be accepted or not, before simulating countermeasures to avoid the the predicted problems. -
Back to Top Thinning
The thinning result shows material thickness change over the part, after forming. The thinnest and thickest points are highlighted.The large amount of thickening confirms a wrinkle (bunch up) of material in the areas indicated.
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Back to Top Springback
A springback analysis was also performed. The maximum amount of springback is predicted to be 1.2mm on the face shown.If this amount is unacceptable, the client's tool designer should add a restrike station OR use an existing station to restrike or overbend.
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Back to Top Simulation Videos
