Precautions for Metal Stamping Part Design
2025-11-11
Avoid molding defects
Extrusion protrusion: Design semicircles (diameter ≥ 1.5 times the material thickness) on both sides of the forming line to minimize metal buildup during reverse forming of edge materials.
Bending R-corner: The internal R-corner should be ≥ 1/2 of the material thickness to prevent the angle from disappearing after multiple stamping operations.
Reinforcing narrow, elongated components: Enhance straightness and strength by folding L-shaped or ㄇ-shaped edges and adding convex ribs.
Mold and Process Optimization
Mold Life Management: Regularly replace springs and promptly resharpen the cutting edges of both the punch and die to prevent wear from escalating.
Lubrication and Cleaning: Clean mold debris before installation, ensuring the guide bushings are well-lubricated.
Tolerance Control: Specify R-fillets, right angles, and sharp angles to prevent cracking in male and female mold components.
Material and Size Restrictions
Thickness range: 0.4–2 mm is ideal; excessively thick materials can compromise the molding outcome.
Machine tool constraints: The maximum machining size is limited by the table surface, and the complexity of the part’s shape affects the forming speed—every 10% increase in depth results in a 15%–20% increase in processing time.
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