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Inventor Tooling – Analysis Overlay

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Inventor tooling has always allowed us to run a few different analysis on our plastic parts like:

  • Fill Time
  • Plastic Flow
  • Confidence of Fill
  • Quality Prediction
  • Air Traps
  • Weld Lines

When reviewing these reports in the past you had to look at each one independently.  When working with Inventor Tooling 2011 you now have the ability to use a overlay option that allows you to merge up to 3 different reports at once.  Let’s take a look.

Video Link:
Inventor Tooling – Analysis Overlays

Inventor Tooling – Mold Kinematics

Something new in the Autodesk Inventor Tooling 2011 was the ability to have mold kinematics.  The new functionality works with the creation of positional representations within Inventor.  When selecting a tooling base from the library Inventor Tooling functionality automatically creates the positional representations for us.  In a two plate mold base it will create:

  • Master
  • Product Open
  • Ejection
  • Close
  • Free Drag

In a three plate mold base it will create:

  • Master
  • Runner Open
  • Sprue Open
  • Product Open
  • Ejection
  • Close
  • Free Drag

Once the positional representations are created you can use the representations in the studio environment to create a rendered animation.  Predefined constraints are also added when inserting a tooling base which will allow you to use the drive constraint command also.

Video Link:
Inventor Tooling – Mold Kinematics

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Part Fill Analysis – Inventor Tooling

When working within the injection mold industry there seems to be a lot of money for someone to make. One area that does real well are the company’s manufacturing the mold designs themselves not normally for the first design but the rework to follow.
Autodesk Inventor tooling has some great analysis built into it that will allow us to:
Identify Part Defects—pinpoint the severity and location of potential manufacturing defects, such as weld lines and air traps. Then, make design changes to avoid these problems.
A part fill analysis evaluates an individual plastic part. Fill analyses answer the following questions:
1. Will the injection molding process produce parts of acceptable quality?
2. Which material should be used?
3. What are the optimal process settings?
4. How many gate locations are required and how will this affect mold filling?
5. Where are the potential defects such as weld lines and air traps?
After the analysis is complete we have the ability to investigate the following results:
Fill time result – The Fill time result shows the position of the flow front at regular intervals as the cavity fills.
Confidence of fill result – The Confidence of fill result displays the probability of plastic filling a region within the cavity under conventional injection molding conditions.
Quality prediction result – The Quality prediction result is used to estimate the quality of the mechanical properties and appearance of the part. This result is derived from the pressure, temperature and other results.
Air traps result – The Air traps result shows a thin, continuous line wherever an air trap is likely to occur.
Weld lines result – The Weld Lines result displays the angle of convergence as two flow fronts meet.
Having this easy to use functionality and others we can produce a better plastic part and overall mold design which will lead to much less rework and a better mold design the first time.

Video Link:

Created by one of the Cad Geeks

Generating the Core and Cavity with Autodesk Inventor Tooling

One of the most time consuming tasks when creating an injection mold tool can be determining the core and cavity of a design. Autodesk Inventor Tooling turns this into a simple 5 step procedure:
  1. Orientate the direction of the mold opening
  2. Define the workpiece settings
  3. Create patching surfaces
  4. Create run off surfaces
  5. Generate the core and cavity

Lets take a look how this can all be accomplished within minutes.

Video Link:
Created by Dave one of the Cad Geeks

Autodesk Has a Solution for the Injection Mold Industry

This post talks about and contains easy to find resources for any company today that designs or has plastic parts manufactured. Autodesk has a great solution to make these companies profitable and competitive in the injection mold industry. To learn more about any of the products available today please contact us at:

Is your company using or producing plastic parts? The injection mold industry is facing unique challenges that Autodesk has a solution for, these challenges consist of:

· Global competition for Tooling Jobs
· Increasing Complexity of designs
· Need for better Quality products
· Reduced lead time
· Losing experienced mold makers

The answer is “AIT” – Inventor Tooling Suite
AIT Mold Design gives designers and engineers intelligent tools and catalogs to quickly and accurately generate mold designs directly from the digital prototype. Additional benefits are:

· Improve the tool design efficiency
· Improve the quality of tooling designs
· Be able to effectively compete on price
· Minimize the need for physical prototypes
· Be able to quote accurately on jobs

Your can download a trial of Autodesk Inventor Tooling software to try it out on your own for 30 days with the link provided.

This past week Tata Technologies hosted two Better and Better Webinars covering functionality of the following:

12/9 – Better & Better Webcast – Intro To Autodesk Inventor Tooling –

· Validate manufacturability of your design with Moldflow capabilities
· Optimize plastic injection mold design
· Automation of complex operations such as cavity and core creation
· Access to many standard catalogs for mold bases, sliders, lifters, ejectors and much more!

12/10 – Better & Better Webcast – Introduction to Autodesk Moldflow Advisor –

· Optimize plastic part and mold designs before manufacturing begins
· Predict potential defects before mold tooling is cut
· Validate your design’s manufacturability

We have recently produced Autodesk Inventor Tooling Tutorial videos on YouTube. Please select the link below if you own the technology today or would like to investigate its functionality further.

Please feel free to contact us ( about discussing the benefits and functionality of the Autodesk Inventor Tooling Suite or any other Autodesk product.

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