What is DFM for Injection Molding?

Design for Manufacturability (DFM) is a critical engineering analysis that evaluates your plastic part design against injection molding best practices. The goal is to identify and resolve potential manufacturing issues before mold construction begins.

Key DFM considerations for plastic molding include:

• Wall Thickness – Uniform walls prevent sink marks and warpage
• Draft Angles – Adequate draft (1-2°) ensures easy part ejection
• Undercuts – Identifying features requiring side actions or lifters
• Rib Design – Proper rib-to-wall ratios prevent sink marks
• Gate Location – Optimal placement for balanced filling and minimal vestige
• Parting Line – Strategic placement for aesthetics and function
• Tolerances – Realistic tolerances based on material shrinkage

Our comprehensive DFM report identifies each issue, explains the impact, and provides specific design recommendations. This collaborative review typically saves 20-40% in tooling costs and prevents production delays.