What Is Mold Flow Analysis?
Mold flow analysis is a simulation process that predicts how molten plastic fills, packs and cools inside a mold cavity before tooling is manufactured. The simulation helps identify potential filling problems early so they can be corrected in the design phase, reducing trial cycles and improving part quality.
What Mold Flow Analysis Can Predict
- Filling patterns — how the melt front advances and whether the cavity fills evenly
- Weld lines — where flow fronts meet and how they affect appearance and strength
- Air traps — areas where trapped air can cause short shots or burns
- Pressure requirements — injection pressure and clamping force
- Shrinkage and warpage — potential dimensional deviations after cooling
How Mold Flow Analysis Improves Your Mold
By running the simulation before cutting steel, we can optimize gate locations, runner design and cooling layout, and select the right material and process settings. This reduces the number of mold trials, shortens lead time and lowers the risk of costly rework after the mold is built.
When We Recommend Mold Flow Analysis
We recommend mold flow analysis for complex geometries, thin-wall parts, large or multi-cavity molds, parts with tight tolerances, and applications where appearance or structural strength is critical. It is especially valuable for medical, automotive and high-value consumer components.
Mold Flow Analysis at D-top Mould
D-top Mould provides mold flow analysis as part of our DFM and tooling service. The analysis is reviewed together with your part design and material data, and the results guide gate, runner, cooling and process decisions before the mold is manufactured.
What We Need for a Quote
Send your 3D model, the intended plastic material, expected annual volume and any specific quality or appearance requirements. Our engineering team will review the project and respond with a quotation within 12 hours.