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Designing products with manufacturability in mind is essential to ensure efficient production and high-quality outcomes. When working with thermoplastics, understanding common failure modes can help engineers create designs that are easier to produce and less prone to defects.
Common Failures in Thermoplastic Fabrication
Thermoplastic fabrication involves processes such as injection molding, thermoforming, and extrusion. Each method has specific challenges that can lead to failures if not properly addressed during the design phase.
Design Considerations to Avoid Failures
To minimize manufacturing issues, designers should focus on features like uniform wall thickness, appropriate draft angles, and proper material selection. These factors help reduce warping, sink marks, and other defects.
Common Design Mistakes to Avoid
- Uneven wall thickness: Causes warping and sink marks.
- Insufficient draft angles: Difficult to eject parts from molds.
- Sharp corners: Lead to stress concentrations and cracking.
- Complex geometries: Increase mold complexity and cost.