Design for Manufacturability

The Difference Between Moldability and Manufacturability

The difference between moldability and manufacturability may seem subtle, but the reality is that understanding it better can have an impact on your part development.

What is Moldability?

moldabilityMoldability refers to how well the mold of your part will conform to being injected with molten plastic. Once your mold has been created from your design, a good injection molding process needs to account for how well plastic can fill that mold cavity.  From material selection to mold complexity, there are many factors that will determine whether the part you designed is capable of accepting this process.  Certain features in your part design like undercuts and threading, can be tricky to mold correctly and consistently.   These can cause problems like knit lines, warp and flash.

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3 Easy Ways To Speed Up Your Development Cycle

Here are a few tips you can easily implement to help to cut your development by up to 50% from conventional manufacturing.

  1. Utilize a Manufacturability Analysis – If Injection Molding is the right manufacturing process for your project, you can limit the amount of redesign work by quickly addressing problematic areas in your part while expediting the production process.

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The Importance of Design for Manufacturability

Design for Manufacturability (DFM) is the proactive process of designing a part to meet the specifications of the chosen manufacturing process used to produce that part. No longer can a product engineer design a part for fit and function only. Product Engineers are also expected to understand the manufacturing process and incorporate those parameters into their design to ensure good part production.

Ignoring design for manufacturability can have disastrous consequences. By the time a product concept gets through the design phase and into the testing/prototyping phase, up to 80% of the budget for that product has been committed. The material costs have been identified, the tooling costs are known and any assembly costs are also worked into the budget by then. And once it has been committed, it is very expensive to turn back to change the design.

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