Ask The Moldflow Experts

Cooling Analysis - What's Best For You?

Ask The Moldflow Experts Webinar Topic:

Cooling Analysis - What's Best For You?

July 27th, 2021 | 12:30 PM CDT

Having a cooling analysis on your mold isn’t hard to justify when you think about how it improves your part quality, molding efficiency and cycle times. But when it comes down to it, how do I know if the type of analysis that’s being run is the right one? Which one is best?

This webinar discussed
  • How cooling analysis works
  • What are the different types of cooling analysis that are available?

ATME - Take Away


If you are experiencing cycle time or warpage related problems:

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Key Cooling Message

  • The fundamentals don’t change
  • How do we take advantage of them?
  • There are different types of Moldflow cooling analysis
  • Cooling designs shouldn’t be an afterthought
  • Cooling uniformity and efficiency can be improved PROACTIVELY

Cooling Uniformity

Pitch Controls Surface Uniformity
Improving Cooling Uniformity
  • Solution 1 – Add/move water

  • Solution 2 – Higher Conductivity Inserts

  • Solution 3 – Conformal Cooling

Depth Controls Core/Cavity Differential

Conventional vs. Conformal

Conventional Cooling Design
  • Can’t get close to surfaces on deep core side pockets

  • Difficult to follow blade contours

Conformal Cooling Design

Conformal Cooling design courtesy of HTS Intl. Corp.

  • Cooling lines conform to part surface geometry

  • Able to reach deep core areas

  • Added cooling to cold sprue


Turbulent Flow Reduces Cooling Time


Three Stages of Flow - Reynolds Number


Proper Circuiting = Fewer GPM


So, What's Best for YOU?

  • All Cooling Analysis = Opportunity

    • Better Parts

    • Increased Profitability

  • No matter what type of cooling analysis

    • Temperature Uniformity

    • Coolant Flow Efficiency

  • Plan ahead to have Moldflow cooling analysis done proactively

  • Have analysis done at the earliest stages of product development


Buy Software, Outsource, or Both?
  • Molders/OEMs

    • Insist on Moldflow analysis – do it yourself or use an outside source

    • Know your GPM (for each line)

    • Do the math – What does X seconds of cycle savings mean?

  • Part Designers

    • Avoid difficult-to-cool areas, where possible

    • Use analysis to identify those areas (Moldflow Adviser)

  • Moldmakers

    • Be creative and test using analysis

    • Use cooling suggestions from analysis