The Cutting Edge of Design – Part 10: Plastic Injection Engineer

   By Matt Kokowski on July 20, 2021

Plastic Injection Engineer is a role on the 3DEXPERIENCE platform that allows the performing of fill analysis on plastic injection molded components. It will handle a simple part fill analysis to an entire mold study.

When we last visited our carving knife project, we learned about drop test simulation. In this installment, we will start with a simple part fill analysis to check gate location and determine if the part will fill in a mold. It will show us sink marks and venting locations as well. This will allow us to make any design changes before starting the mold design or cutting any tooling.

This article covers:

Branch Revisions

Since Plastic Injection Engineer is built on the 3DEXPERIENCE platform, we have full revision capabilities, not only for our part designs, but also for any simulation study. For our example here, a branch revision is created on the part. This will allow any design modifications specific to our analysis to stay with the study and not impact the production part. It maintains a link to the original part, so we always have a history of what we have completed.


3DEXPERIENCE Plastic Injection Engineer Branch Revision

Now that a version of the knife handle specific to the analysis exists, it can be opened in SOLIDWORKS Connected and modified to fit the needs of the study. In this case, the study will be run on one half of the part, so we can delete the body to modify the design for our simulation. The design is then simply saved back to the platform.

3DEXPERIENCE Plastic Injection Engineer Saving for Analysis

Plastic Part Filling

The part is now available for analysis in any 3DEXPERIENCE Simulation app. Once opened in our Plastic Part Filling Application, a wizard will guide us through the steps needed to complete the analysis.

3DEXPERIENCE Plastic Injection Engineer Plastic Part Filling Wizard

3DEXPERIENCE Plastic Injection Engineer Materials

Process Settings

The next step in the analysis is to define our process settings. Once the step is highlighted in the wizard, the process settings icon appears below and allows us to define the injection conditions. If you’re not sure of the initial conditions, a set of defaults is applied for you.

3DEXPERIENCE Plastic Injection Engineer Process Settings

Injection Location

Next, we simply apply an injection location where plastic will enter our mold, and the assistant shows us that the study is ready to solve.

3DEXPERIENCE Plastic Injection Engineer Plastic Injection Location

Within a few minutes, we can set up a simple fill study and analyze the results to determine if any changes need to be made to the design. Since the study is on the platform, we can also view the results in our web browser, allowing for an easy way to perform a design review with the rest of the team. We can then simply post these results in the community for the rest of the team to review.

3DEXPERIENCE Plastic Injection Engineer Injection Simulation

3DEXPERIENCE Plastic Injection Engineer Fill Study

Now that we’ve determined that the part will easily fill, and sink marks are acceptable, we can share the design for core and cavity creation.

Video Overview

Watch the video below for all the details on our simple part-fill analysis.


TriMech’s dedicated team of engineers helps businesses solve their trickiest problems at any stage of the process, whether it is in design, scanning, simulation analysis, data management or bolt-on additive manufacturing solutions. Learn more about what we can do and how we can help your company today.

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Matt Kokowski

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